How to change double-glazed windows in plastic windows. How to replace a double-glazed window in a plastic window yourself: video, instructions

At first glance, the design of a plastic eurowindow seems complicated. Therefore, if a double-glazed window is damaged in general or one of the glasses, many immediately look for the phone number of repair companies. In this situation, there is no need to rush: you can replace the double-glazed window in a plastic window yourself, thereby saving several thousand rubles.

A double-glazed window is a complex hermetic structure consisting of several sheets of glass separated from each other by an aluminum frame, under which silica gel balls are poured - they absorb moisture in the package chamber. Between the panes, a double seal is installed from a butyl tape located under the distance frame, and thiokol - a special mastic that connects the entire structure into one.

For reference: you can read more about the device of a double-glazed window in the work "".

There is a very weak point in this system - glass. The material is very fragile, capable of cracking or breaking at any time. If this happens, it is necessary to immediately replace the glass in the double-glazed window, because due to the depressurization of one chamber, not only the package, but also the window as a whole loses its consumer properties quite quickly:

• moisture appears on the glasses, and the desiccant flows down in the form of a yellow resin;
• street sounds are well audible;
• drafts appear;
• heat is poorly retained.

In addition, double-glazed window replacement is required in cases where:

• the package chamber has lost its tightness (the reasons may be different), and therefore the glass sweats in summer and becomes covered with frost in winter;
• it is necessary to insulate the room, as a result, the usual flow glass is changed to i-glass or a single-chamber package to a two-chamber package;
• the sounds of a noisy street began to penetrate into the room - noise-protective double-glazed windows were installed.

Is it possible to replace glass in double-glazed windows

The most frequently asked question when contacting an insulating glass installation and repair company is: “Is it possible to replace broken glass in an insulating glass unit without changing the latter?” Depending on the level of the company, there may be several answers: “No”, “Yes”, “It is possible, while visiting the customer”.

Let's examine each of the answers in detail.

"Not" say in a reputable company. Here they value their reputation and offer the client the best option: dismantling the broken package and installing a new one.

"Yes" you can hear from people who want to make the most money. They will come, remove the window, bring it to the workshop, where they will remove the damaged glass and put in a new one. After that, they will bring the repaired double-glazed window and install it in place. In terms of quality characteristics, there are no questions for such a repair - everything was done in accordance with the technical regulations.

Questions arise about the cost of repair work (meaning only the replacement of glass in the package itself) - they are 100-200 rubles. more expensive than new glass. Plus, the company that made the repairs will install a double-glazed window, and this is an additional 2,000 to 4,200 rubles per m 2. Therefore, it is better for apartment owners with hands to refuse such a service (the recommendation does not apply to those who are not used to counting money).

“It is possible, at the same time with a visit to the customer.” This glass replacement should be briefly described: repair on the knee. For those who like to learn from their own mistakes, at the end of the work we will give detailed instructions for such a do-it-yourself replacement.

Why is glass not being replaced in double-glazed windows at home? After all, it is not difficult to remove the double-glazed window from the sash, cut off the mastic around the damaged glass with a sharp knife, remove the fragments and clean the camera from dust and dirt.

There are no difficulties when cutting new glass to the size of the distance frame. Indeed, there are no problems here. They lie in a different plane: at home it is impossible to recreate the technological conditions for assembling a double-glazed window: dry, warm air, while dust-free when sealing the entire structure.

By sealing outside the chamber, it will not work:

• wash and dry the glass with high quality so that the smallest specks do not get on it during drying;
• keep silica gel in working condition - its balls will have time to collect moisture from the air in a short period of time (the air in the chamber is dry);
• apply the mastic in an even layer, as a result of which, when the package is installed in the window sash, the sealant may be damaged;
• thiokol is difficult to find on sale in compact packages - mainly in two-hundred-liter barrels.

In what cases is glass replacement acceptable?

• There is stained glass in the window. Replacing one sheet is much cheaper than replacing several expensive glasses;
• A three- or four-chamber package is mounted in the frame;
• An expensive thick triplex was installed in the sash from the street, and the inner glass was broken.

In these cases, the cost of repair is cheaper than the price of a finished double-glazed window.

Instructions for replacing double-glazed windows

For those who are friends with tools, self-replacing a double-glazed window in a plastic window is not an insoluble problem. The whole process consists of several sequential operations:

1. preparing a set of tools;
2. glass pane is measured;
3. an order is placed;
4. the damaged double-glazed window is dismantled;
5. new windows are installed;
6. sash is adjusted.

Tools and materials

Replacement of broken double-glazed windows is carried out with a minimum of tools. Need:

• roulette;
• calipers;
• rubber mallet (mallet);
• a spatula or a simple screwdriver (you can also use a large kitchen knife, but this is not very convenient);
• gloves;
• an old sheet or piece of other fabric that you don’t mind throwing away.

Measurement

To order a double-glazed window, you must specify the number of air chambers and the dimensions of the double-glazed window: height, width and thickness. All these data can be found on the distance frame (see photo), where the package formula (number and thickness of each glass) and its dimensions (height, length and thickness) are printed. If for some reason such an inscription could not be found, the owner himself can make measurements.

Important: the easiest option is to remove the double-glazed window and measure it. But with such an organization of work, the window will stand without glass for several days - it takes time to manufacture a new double-glazed window. Therefore, measurements are taken directly in the sash.

For measurement, a tape measure is taken and the distance between the profile of the sashes with broken glass is measured along the width and height of the window. A number of publications say that the distance between the external dimensions of the glazing beads is measured, which is the same thing. From the results obtained, 2 cm is subtracted - 1.0 cm on each side for the adjustment gap.

An important parameter is the double-glazed window formula, which indicates the thickness of each glass and the distance between them inside the chamber (for example, 4 + 10 + 4 + 10 + 4, where 4 is the glass thickness in mm, 10 is the frame width in mm). These figures are mandatory written in the passport of the window and printed on the remote bar. If the passport is lost, and there is no inscription, you can conduct an independent measurement. The tape measure gives an error of up to 1 mm, the caliper measures with absolute accuracy. Work order:

1. The thickness of the sash profile is measured (for example, 70 mm);
2. The thickness of the glazing bead and rubber seal is determined (located indoors). To do this, the end of the measuring tool rests on the glass and looks at what distance the plane of the sash is (approximately 14 mm);
3. A similar procedure is carried out from the side of the street (20 mm).

A student of the second grade can do the rest: we subtract 14 from 70, and then 20. The result of 36 mm will enable specialists to draw up a formula for a double-glazed window and use it to make new glass.

Order

For the manufacture of double-glazed windows with angles of 90 o, it is enough to indicate the thickness of the package, its height and width, as well as the number of chambers in the application form. The manufacturer's specialists will independently calculate the formula and use it to produce a new glass for the window. Everything is much more complicated if there are curvilinear shapes or non-rectangular corners (glass in the form of a circle, triangle, rhombus, etc.). How to change the double-glazed window in this case?

Here, one cannot do without dismantling the damaged glass (how to do this, just below). The removed glass is placed on whatman paper and outlined, after which the shape of the damaged package is cut out with scissors. Sometimes with a razor blade, the template is cut immediately. According to the finished pattern, a new double-glazed window will be made within a few days.

Dismantling

There is nothing complicated in the instructions for dismantling a broken double-glazed window. The whole process consists of a series of sequential operations:

1. An old sheet or other fabric is spread on the floor in front of the window, large in size behind the double-glazed window.
2. Broken glass is carefully glued in several directions with adhesive tape so that the fragments do not fall out during the process of removing the package and do not cause injury to others.
3. Staples are taken off. To do this, you need a sharp and hard tool, such as a chisel, a flat screwdriver or spatula, as well as a mallet (rubber hammer). It is necessary to start with longer glazing beads, as a rule, side ones - it is easier to bend them when removed from the sash grooves.

Attention: in almost all instructions for dismantling double-glazed windows, it is indicated that the disassembly of the sash must begin with the removal of the side glazing beads. However, in the transom, they cannot be removed without damage. Therefore, we focus on the fact that initially longer glazing beads are removed - in the transom this is the top and bottom.

To remove the bead, you should:

• Insert a spatula (chisel or screwdriver) into the gap between the sash profile and the glazing bead in the middle of the window;
• Holding the tool strictly horizontally, hit it several times, not very hard, with a mallet until a gap of 1-2 mm is formed. Further, the technology of different specialists is slightly different; Some make such a gap almost along the entire length, and then return to the middle, others, immediately tilting the tool down, knock out the glazing bead completely from the grooves of the sash in its center;
• When it will be possible to grab the glazing bead with your fingers, it stretches towards itself and to the side - it will easily come out;

Important: when removing the glazing bead with a pencil or marker, it is necessary to mark the grooves on the sash in order to install a new double-glazed window without any problems in the future, especially when changing its thickness (you will have to buy new glazing beads and cut them correctly).

• The top latch is removed last - it insures the glass from accidental falling. Here you need an assistant supporting the glass;
• The package is removed from the sash. If there are difficulties - the sealant of the package is stuck together with the plastic of the window, the glass is pressed from the frame with a sharp object;
• The removed package is placed on the fabric and carefully broken;
• Broken glass in the sheet is thrown into the trash.

Installation of new glass

Installation of new glass involves the following operations:

• The fastening of the seal on the outside of the window is checked;
• Leveling plates are installed in the fold of the sash (they are also called gaskets): two from the bottom for a blind window (see photo), four for an opening sash. At the same time, they are installed one on each side diagonally, at a distance of about 10 cm from the corner of the sash (see photo).

Attention: the number of strips for different manufacturers may vary, so when dismantling the glass, it is necessary to remember the location of the gaskets.

For reference: a rebate is a plane along the perimeter of the sash, on which a double-glazed window is mounted, which is clearly visible in the photo.

• The double-glazed window is carefully placed on the gaskets. Here it is necessary to check its position several times, since in the future it will not be possible to correct the geometry;
• A seal is installed on the inside of the double-glazed window;
• The glazing beads return to their places in the reverse order: first the top, then the bottom, and only then the side ones. They are driven into the grooves by lightly tapping a rubber hammer from the edges to the center. Fixation is confirmed by clicks.

Adjustment

A new double-glazed window may have a different weight, which will require additional adjustment of the sash. To do this, the hinged adjusting screws are tightened with a “furniture key”, which can be read in detail in the material “How to adjust plastic windows”.

The nuances of replacing a double-glazed window in a wooden frame

The wooden frame of the euro-window is fastened with a double-glazed window in the same way as in a plastic window - with glazing beads. However, there is a small difference here: silicone sealant is used instead of a rubber seal.

Therefore, in order to remove glass from a wooden sash, you first need to remove the glazing beads, and then remove the silicone mastic. Accordingly, when installing a new glass, it is necessary to re-process the joints of the package with the sash with silicone.

The nuances of replacing double-glazed windows in stained glass

There are several points in stained glass windows that do not allow you to repair and replace damaged glass on your own:

• It is much cheaper to replace broken glass than to install a new package, and such work can only be done by professionals in a specialized workshop;
• Glass is placed in special "stained glass cells" that are removed outside, not inside, which requires an aerial platform or scaffolding;
• It is impossible to remove the pattern according to the color scheme. It is necessary to deliver the whole glass to the workshop, where, with the help of instruments, the necessary measurements will be carried out, on the basis of which the glass will be reproduced.

Is it possible to change

When replacing a damaged double-glazed window, in many cases it becomes possible to change the number of cameras in it.

Single glazing to double glazing

Replacing a single-chamber window glazing with a two-chamber glazing is possible subject to two conditions:

1. The width of the sash rebate allows you to install a double-glazed window. There are two options here:

1. a package of three glasses is the same in width as a single-chamber one - no problems arise;
2. the new package is wider, but due to the narrower glazing bead (you will have to buy new ones), it becomes in the sash.

2. The profile and fittings of the window can withstand the weight of a heavier sash (increased by about 30%). If it is necessary to reinforce the reinforcing plate inside the profile, it is easier to change the entire window. If the problem is only in the loops, they change.

Therefore, without consulting a specialist, it is not recommended to independently carry out such a replacement.

Double glazing to triple glazing

A triple-glazed window is installed instead of a two-chamber one under the same conditions as above. The only difference is that the three-chamber package is only 25% heavier than the two-chamber package, which in many cases does not require strengthening the frame profile.

Instructions for replacing glass in double-glazed windows yourself

For those who like to do everything on their own, here is an instruction on how to change the glass in a double-glazed window at home.

For work you will need:

• glass;
• butyl tape;
• silicone-based sealant;
• chisel;
• rubber mallet;
• acetone (any other solvent);
• construction pistol;
• diamond glass cutter

The work algorithm is as follows:

1. A double-glazed window is removed from the window block (how this is done, you can see above) and placed on a flat surface with damaged glass up;
2. Using a chisel or knife, broken glass is removed from the package, after which the aluminum frame is cleaned of sealant and debris;
3. The cleaned places are degreased with a solvent;
4. New glass cut out;
5. The newly cut glass is washed and dried with warm air. The same operation is carried out with the glass surface where degreasing was carried out;
6. A layer of sealant is applied to the package frame with a gun, after which a new glass is laid. You need to lay it with a partner and immediately for sure. It will be very difficult to fix;
7. An absorbent is poured under the spacer;
8. The package is sealed around the perimeter of the glass;
9. After the sealant has hardened, the double-glazed window is placed in the sash.

We emphasize once again: “repair on the knee” does not give a long-term effect. The best option is glass replacement.

How much is a service in organizations

The final price of the work is determined by many factors. Therefore, we present the average lower and upper limits of the price lists of several firms in St. Petersburg and Moscow as of December 15, 2018:

• Replacement of a two-chamber double-glazed window - 2,000-4,200 rubles / m 2 (delivery included);
• Double-glazed window repair - from 1,000 rubles / m 2 to 2,300 rubles / m 2 - only work. This does not include transport costs and the cost of glass.

For reference: the cost of a new two-chamber double-glazed window starts from 1,300 rubles / m 2 for little-known companies. For recognizable brands, it starts from 2,050 rubles / m 2.

Conclusion

Window glass tends to break. It also beats in double-glazed windows. In this case, the most rational is:

• replacement of not a separate glass, but a double-glazed window as a whole;
• dismantling and installing a new package on your own - family finances are saved.

Broken glass can be replaced at home. But such work gives an effect for a very short time - at home it is impossible to recreate the conditions of the chamber in which double-glazed windows are assembled.

Today, the design of plastic and aluminum double-glazed windows is considered quite complicated, and few will undertake to repair on their own in case of glass damage. However, with the right approach, you can do without the participation of specialists, which will save a considerable amount.

How a plastic window is arranged - design features

We will not talk about the cameras of the frame itself, we are primarily interested in the double-glazed window, which is to be changed. This design is based on a special profile frame in which a molecular sieve is located, which does not allow moisture to penetrate into the cavities between the glasses. This frame is most often made of aluminum or galvanized steel, sometimes it can also be made of plastic. It is she who is a kind of gasket that separates the glasses of the package, the distance between which depends on the requirements for this design.

Independent replacement of a double-glazed window in a plastic window is possible only if you know exactly the marking of the one installed initially. There is nothing complicated in digital designations, on the contrary, you can easily choose exactly the size that is needed if you order an identical design. On the market you can find both single-chamber and double-chamber types, in the first case the package consists of two glasses, and in the second of three. For example, the brand 4-10-4-10-4 will mean a two-chamber model: 3 glasses of 4 millimeters are separated from each other by two frames 1 centimeter wide. Option 4-6-3-16-4 is more complicated, the chambers in this case are of different widths, the gaps between the glasses are 6 and 16 millimeters, respectively, with the middle glass in the package only 3 millimeters, and the outer ones - 4 each.

The least popular, but there are three-chamber models among the products of double-glazed window manufacturers, their cost is the highest, and their use is justified in the northern regions or in windows on the north side of the house.

It is quite simple to determine how many glasses you have, if you didn’t manage to understand during the examination. Bring a burning candle and count the lights in the reflection. 2 - you have a single-chamber model in front of you, 3 - a two-chamber model, 4 - which means there are three cameras and there will be large replacement costs. The manufacturing technology itself, or rather, the assembly of packages, is noteworthy. The cavities are usually filled with inert gases such as krypton or argon. Less often, in workshops without special sophisticated equipment, the maximum dryness of the air inside is simply ensured. It is logical that the chambers are made extremely tight, which makes the assembly resemble the manufacture of an aquarium - the glasses are planted on the frames using a special adhesive sealant. It is for this reason that if the glass is damaged, it is more reasonable to change the entire double-glazed window.

We make measurements of a plastic window - we determine the dimensions of the package

It would seem that there is no other option but to remove the double-glazed window and, picking up an ordinary measuring construction tape measure, get the exact height and width values. However, then you will either have to disassemble the frame twice, or the windows will be without glass until you buy new ones. The easiest option is to measure the distance between the outer edges of the glazing beads that hold the double-glazed window. The secret is that the glasses enclosed in the frame are slightly smaller than the plastic strips holding them, due to the existing adjustment gap. Considering the last factor, we reduce the result obtained after measurements by 3, throwing off 1.5 centimeters on each side.

The above method concerns the determination of dimensions both in width and in height. As for the thickness of the package, we have already explained how you can find it out by simply converting the marking numbers into dimensional values. We only note that when replacing glasses, you can take not an absolutely identical option, but a suitable one in terms of thickness as a whole. That is, if you have a single-chamber package with a large gap between the glasses, you can take a two-chamber package, the sum of the marking numbers of which will correspond to the sum of similar values ​​\u200b\u200bof the previous design. Thus, you will significantly improve the performance of heat preservation in the room by increasing the number of chambers with the same package thickness.

Dismantling - the correct sequence of actions

So, let's get down to work on restoring the sash of your window to its original form. To do this, you just need to replace the double-glazed window in a damaged plastic window, which even those who have never faced such a task before can do it. You will need a narrow tool, like a thin chisel, and a rubber mallet. First you need to remove the glazing beads, and you must start from the side ones in order to avoid damage to the latches.

From the edge of any, right or left glazing bead, that is, at the highest or lowest point. At the same time, we direct the sharpened edge away from the frame. We apply several weak blows with a rubber hammer on the chisel to form a narrow gap, which will mean detaching the fastener. Be careful, there is a risk of breaking the hidden part of the fastener, which is included in the groove of the frame.

Now we develop the success achieved by turning the working part of the chisel 180 degrees and resting its plane against the edge of the glazing bead. We press, and the gap begins to expand. We continue along the entire height of the frame, if necessary, slipping any narrow plastic plates as wedges to where the double-glazed window retainer has already moved away. In no case do we use strong pressure or blows so as not to break the plastic window, it is better to spend more time, but do without damage.

When both side beadings are removed, disconnect the lower and upper ones in the same way (only in this order). When doing this, be sure to hold the double-glazed window so that it does not fall out, since it will no longer be fixed when the last element holding it is removed. It is also important to remember that, when removing the latches, you should mark where they were located in order to install them in the reverse order. It is also necessary to remember (and it is better to mark), before removing the double-glazed window, where there are spacers that correct its position in the frame.

Installation - how to properly replace glass and assemble a window

Finally, the one- or two-chamber glass structure is removed and set aside (in whole or in fragments, depending on the degree of damage). At the same time, try not to break it, remove it with extreme care. Next, we carefully place the double-glazed window in the plastic window and independently adjust the gaps, setting the spacers at the same points where they stood earlier. Check that the seals are also in place.

We return the glazing beads to the grooves of the window frame intended for them. Right now it is important to remember in what order you extracted them and which ones from where. Fasten in exactly the reverse order. To make the latches easier to enter the grooves, we tap along the outer edge of each with a rubber mallet, and the blows should not be strong - you are working with fragile plastic. When you hear a click, this will mean that the glazing bead has taken its rightful place. It remains only with the help of a special bolt and a hex angle screwdriver if its position is violated.

Replacing individual glass at home - how to do it

Yes, if you know how to disassemble a double-glazed window, you can only change its damaged part, but it will be much more difficult. The fact is that the replacement of glass in a plastic window is carried out in a room with a minimum amount of moisture in the air, or under a jet of a heat gun. Otherwise, moist air, once inside the chamber, will turn into when the temperature changes, and it will fall directly into the cavity.

If you are determined, lay the bag on a flat surface and use a utility knife to cut off the intermediate frame under the damaged glass.

Carefully clean the place of its fixation from the remnants of adhesive-sealant and on double-sided tape, without gaps (the latter are smeared with silicone), glue a new aluminum frame, filling it with moisture-absorbing granules. Next, we plant a new glass on the same silicone, cut exactly to the size of the package.

The replacement of ordinary wooden windows with plastic ones was carried out almost everywhere. Indeed, the new window blocks do an excellent job of retaining heat inside the apartment and protect from street noise, but, as in the case of the “previous generation”, there are problems with double-glazed windows, which sometimes require partial or complete replacement of this element.

So, often there is a need to replace broken glass in a double-glazed window. To solve the problem, it is not necessary to completely change the double-glazed window in a plastic window - just remove the damaged element and install new glass. You can do this yourself or involve specialists from a company that installs window systems.

In the event that the owners decide to attract a firm, it should be borne in mind that in most cases replacing only one glass will cost about the same price as installing a new double-glazed window, and therefore, glass should be changed with the involvement of professional installers only if:

• if stained glass is to be replaced;
• if you need to change the glass in a multi-chamber (triple or more) package;
• when the inner glass is damaged, and the outer one is a particularly durable and expensive triplex.

Instructions for replacing glass at home

To replace broken glass in a PVC or aluminum window frame package yourself, you will need to follow these steps:

1. Remove defective double-glazed window from the window frame. To do this, you must first remove the glazing beads, prying them with a sharp and durable tool: a knife, a chisel, a screwdriver. Dismantling begins from the side surfaces, then the lower and upper bead are removed. At this point, it is advisable to involve another person who can insure the master from accidental falling of the double-glazed window.
2. Lay out the cloth on a flat surface and put a double-glazed window on it with the damaged glass up.
3. Cut off the sealant around the perimeter of the broken glass and unfasten it from the overall package. For a double one, a cut is made in the middle; for bags with a large number of chambers, one glass is carefully separated without affecting the lower layers.
4. Clean off the remaining sealant and wipe the surface of the whole glass using a special tool.
5. New material is cut exactly to size - it is advisable to entrust this process to professionals.
6. Apply a thin layer of sealant around the perimeter of the base, install glass on it.
7. The joint is also filled with sealant to completely eliminate the occurrence of voids.
8. Insert the finished double-glazed window into the base, performing fasteners in the reverse order.

Instructions for replacing double-glazed windows

In order to change a double-glazed window in a PVC window, it is not necessary to invite craftsmen and spend money on paying their labor. It is quite possible to replace a double-glazed window in a plastic window with your own hands. Any owner will cope with this simple matter himself if he adheres to the following sequence of actions:

1. you need to start with the selection of tools;
2. next, the dimensions of the package are taken;
3. a new design is ordered;
4. the damaged package is removed, a new one is installed in its place;
5. adjustment is made.

Materials and tools

To replace an old double-glazed window with a new one, you will need the following tools:

• yardstick;
• calipers;
• rubber mallet;
• flat-blade screwdriver or strong spatula;
• pure matter, the size of which is larger than a double-glazed window.

Measuring and ordering a new double-glazed window

To find out the dimensions of a double-glazed window, it is enough to find a marking on the distance frame indicating the height, width and thickness of the package, as well as information about the quantity and thickness of each element. If the information could not be found, measurements will have to be done independently.

The easiest way is to measure the dismantled double-glazed window, but in this case it will take some time, while the new glass is being prepared and the double-glazed window is being restored, to put up with the window opening closed with plastic film.

To take measurements without dismantling the package, you will need to take measurements between the leaf profile: you need to measure the distance from the outer edge of the bead on one side to the outer edge of the bead on the other. From the result obtained, it is necessary to subtract 20 mm, since an adjustment gap of 10 mm is provided on each side.

The parameters that have a significant impact on the operation of an insulating glass unit include the ratio of glass thickness and the gap between adjacent glasses (chamber thickness). If these values ​​were not found on the frame, you will need to remove them yourself. To do this, the following steps are performed:

1. Measure the thickness of the profile with a tape measure;
2. Measure the thickness of the inner and outer bead;
3. From the value of the profile thickness, subtract the thickness of the glazing bead and get the thickness of the double-glazed window. Further, based on the number of chambers, find the distance between the panes, given that glass panes with a thickness of 4 mm are usually used in double-glazed windows.

Dismantling of the old double-glazed window

Removing a double-glazed window from a frame is not particularly difficult even for a novice master. For dismantling to be successful, you must follow the following algorithm of actions:

• Before starting work, you need to glue the broken glass with adhesive tape so that you do not get injured during dismantling.
• Lay out the fabric on the floor or table.
• Remove the glazing beads with a knife, screwdriver or wide chisel. Since long slats are easier to remove, you need to start with them (for window frames, these are side surfaces, for transoms - horizontal). The top bead is removed last: it serves as insurance against falling glass. It is necessary to pry off the glazing bead in the middle part and, using the tool as a lever, lift it, pulling it out of the attachment point.

If you can't pry the glazing bead, you can use a rubber mallet to lightly knock out the chisel. Thus, it is necessary to achieve a gap of 1–2 mm along the entire length of the glazing bead, after which it can be removed by prying it with a tool and grabbing it with your fingers.

• If the edges of the double-glazed window are strongly stuck to the frame, you need to pry them with a sharp and hard object.
• Transfer the dismantled package to the matter.
• For the convenience of recycling the old package, it can be broken into smaller parts and, wrapping the fragments in matter, throw them into a container.

New glass installation and adjustment

To install a new double-glazed window you need:

• Check how well the outer seal is holding up.
• Lay the straightening plates on the fold - a special place for placing the package, located along the perimeter of the frame. In different window systems, the number of plates may differ, so when dismantling, you need to write down how many of them were and in what places in order to arrange new ones according to this scheme.

• Install the double glazing on the gaskets. The work must be done carefully and accurately, since it will be impossible to correct the position of the package in the future.
• Lay the inner seal around the perimeter of the bag.
• Fix the structure with glazing beads. The glazing beads are installed in the reverse order: first - the top, then the bottom, after which - the side ones. With high-quality fixation of the glazing bead, you can hear a click.

The nuances of replacing a double-glazed window

In some window designs there are features that should be considered before changing a double-glazed window.

In a wooden frame

The nuance of a wooden frame for the installation of double-glazed windows lies in the method of attaching the glazing beads. The glazing beads themselves look normal, but sealant is used instead of a rubber seal in wooden windows.

When dismantling the package, remove the glazing beads, and then remove the old sealant. The installation procedure, on the contrary, begins with the application of sealant, after which the glazing beads are mounted.

In stained glass

From the instructions described above, it is clear how to change ordinary glass in a double-glazed window, however, replacing stained glass on your own will not work for the following reasons:

• stained glass is often installed from the outside, so to dismantle a package with a stationary sash, you will have to hire a tower or use scaffolding;
• high-quality replacement of glass in a double-glazed window is possible only in the stationary conditions of the workshop;
• color matching is also required in the workshop to avoid tone differences in adjacent panes in the frame.

Is it possible to increase the number of cameras

Replacing a double-glazed window in a plastic window is a good reason to think about increasing the number of cameras in the window, but here several conditions must be met:

1. The size of the rebate should allow you to install a package of a larger number of glasses.
2. The quality characteristics of the fittings installed on the window unit and on the profile itself must correspond to the new load: the weight of additional glass can significantly increase the pressure on the frame.

These conditions are important both when installing a two-chamber package instead of a single-chamber package, and when changing from a two-chamber package to a three-chamber package. It is much more important to take into account the degree of strength of the profile and fittings in the first case than in the second, since the weight of a package with three chambers is only a quarter more than the weight of a two-chamber package, and the weight of a two-chamber package is almost twice that of a single-chamber package.

It is possible to eliminate the discrepancy between the width of the fold and the width of the new package by selecting a narrower glazing bead, and internal reinforcing aluminum plates can be used to reinforce the frame profile.

It is not possible to do all the calculations on your own. Therefore, when the window breaks and the owner has a desire to improve the package when replacing it, it is better to trust the professionals and order this service from the company.

What is the average cost of glass replacement services?

The cost of services for replacing or repairing double-glazed windows is quite high, but we must take into account the fact that it is unprofitable for craftsmen to travel for a "penny" repair. On average, companies involved in the installation of PVC windows charge for the replacement of a broken double-glazed window from 2500 to 4500 rubles per sq.m.

This cost usually includes shipping. If you need to replace glass in a double-glazed window, you need to be prepared for an amount of 1,500 to 2,500 rubles per sq.m. without taking into account the cost of material and delivery of glass to the customer.

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Plastic windows have a reliable design and are distinguished by a long service life. But over time, it may be necessary to replace the double-glazed window for various reasons - the glass has broken or cracked, or there is a desire to replace an outdated model with a more modern one. This will eliminate the fogging of glasses and the appearance of ice on them in the cold season, increase sound insulation and reduce the thermal conductivity of the window.

The constituent elements of a double-glazed window

Of course, you can resort to the services of companies specializing in the manufacture, installation and repair of plastic windows, but many apartment owners are interested in how to replace a double-glazed window in a plastic window on their own. Before ordering and installing a new design, measurements of the old product should be taken. Consider the characteristics of the elements that make up PVC windows.

A double-glazed window is a sealed system that includes a certain number of glasses - 2, 3 or more. Glass sheets are separated by a perforated aluminum frame containing granular silica gel, which effectively absorbs moisture and prevents fogging of the glass surface. During the manufacturing process, the structure is filled with a sealant that prevents moisture and contaminants from penetrating inside.

Window glass replacement

If you need to replace broken glass in a double-glazed window, keep in mind that this operation is much more complicated than replacing a double-glazed window in a plastic window and can only be done qualitatively in the factory using modern equipment.

This is explained by the fact that the silica gel, which is part of the window structure, absorbs the moisture contained in the atmospheric air when the chamber is depressurized.

As a result, dew will appear on the newly installed glass after a while. Another option is also possible - on the internal elements of the product, silica gel that has absorbed moisture will begin to appear in the form of a fluid yellow mass. Therefore, replacement of glass in a plastic window should be carried out only in cases where it is problematic or practically impossible to replace a double-glazed window with a similar one. For example, when using in its composition a unique glass in the form of a stained-glass window, which has an original texture, tinting, etc.

How can I replace glass in a double-glazed window with my own hands? It is necessary to remove the double-glazed window, place it on the table so that the glass that needs to be replaced is on top. It must be removed, for example, by cutting off the sides of the profile with a sharp knife. The perforated aluminum frame is replaced with a new one, pre-filled with a granular air dryer. This will prevent the glass from fogging up. You can use double-sided tape to fix the frame in place. New glass should be cut carefully, wipe its inner surface with alcohol. Installation is carried out using silicone sealant applied around the perimeter. After the silicone has dried, the double-glazed window is put in its original place using adjusting plates and fixed with glazing beads.

How to correctly measure the dimensions of a double-glazed window

Before replacing a double-glazed window, it is necessary to order its manufacture by contacting a specialized company that provides this type of service. To do this, you need to determine its size.

Looking closely at the structure of the window frame, you can see the border separating its base from the glazing bead framing the glass. By measuring the width and length of the rectangle formed by the glazing bead (including its thickness), we obtain the preliminary dimensions of the broken double-glazed window to be replaced.

Between the glass and the frame, it is necessary to have a deformation gap, which facilitates free adjustment of the structure and prevents its destruction during the expansion of materials under the influence of temperature fluctuations. Therefore, the final result can be obtained by subtracting 1–1.5 cm from the preliminary one. Additionally, the number of cameras in the package should be determined.

Replacing double-glazed windows with your own hands

To do the job, you need a rubber mallet and a shoe knife (you can use a chisel instead of a knife). The first step in replacing double-glazed windows in windows is the dismantling of previously installed ones. To protect the frame from scratches, it is recommended to cover it with masking tape.

The sequence of dismantling the window element when replacing a double-glazed window with your own hands:

1. Insert the tip of a knife or chisel into the hole separating the glazing bead from the frame. In order to separate and remove the glazing bead, you need to gently tap the knife with a hammer. You should start from the middle of the canvas, gradually moving to the edges. All operations must be carried out as carefully as possible to avoid accidental damage to the base.
2. First, the glazing bead located on the right side is removed, then the one on the left, then the top and last the bottom.
3. Removal of old glass. It is not easy to perform this action on your own, so it is advisable to use outside help. Special suction cups designed to fix the web can facilitate the operation.

Installation of a new double-glazed window

When installing a new double-glazed window in a plastic window, special straightening plates are used for the correct even positioning of the product. These parts allow you to fix the package, adjusting the accuracy of its placement. If the window is deaf, you can limit yourself to installing plates at the bottom of the structure. In opening sashes - additionally place at two corners - in the area of ​​\u200b\u200bthe lower hinge and opposite the upper one, stepping back 10 cm to the side.

The installed double-glazed window is fixed along the perimeter with sealing rubber, then with glazing beads, the order of their fastening is the reverse of the removal sequence. You should start with a short lower one, and end with a long right one. First, the corners of the glazing bead are inserted into the frame, after which, by lightly tapping the rubber hammer, it is slammed into place intended for it. In order not to confuse the glazing beads during dismantling, you can mark them. The total duration of a double-glazed window replacement is approximately 25 minutes.

The nuances of replacing double-glazed windows

Replacement of double-glazed windows of plastic windows may be necessary if the glass is damaged or the window is of poor quality. A crack in the glass can appear due to a number of reasons:

• Incorrect measurements;
• The window was installed incorrectly (the necessary gaps were not left, the adjusting plates are missing or displaced, the application of mounting foam does not comply with the rules), resulting in a violation of its geometry;
• Failure to comply with the rules for storing materials used for the manufacture of windows;
• Sudden changes in atmospheric pressure during the operation of the product;
• The application of critical pressure on the window sash, leading to a violation of the geometry of the glass and its damage.

Carrying out work on the replacement of double-glazed windows by service centers

In some cases, replacing double-glazed windows with your own hands is difficult or impossible. The best way out of this situation is to use the services of specialized service centers that guarantee fast and high-quality replacement of damaged glass or the entire double-glazed window. For example, it is impossible to replace a double-glazed window on your own if the window structure provides for a soldered seal.

You can also contact the service center to replace especially valuable glass. Additionally, it is possible to provide for the installation of a decorative overlay, false-perplet decorating the product, energy-saving, fire-prevention, anti-vandal or any other glass. Thus, at the same time as replacing the glass, it is possible to improve the design of the entire window.

Do-it-yourself replacement of double-glazed windows in plastic windows is carried out in several stages. This is a simple operation, and if you follow all the recommendations, anyone can handle it. Next, we consider in detail the nuances of this procedure.

Before ordering a window from the manufacturer, you should find out what varieties exist. There are two classifications of double-glazed windows - according to the number of chambers and practical purpose.

The first classification includes the following categories:

• Single-chamber (consist of two glasses and one air chamber).

Note: the empty space must be filled with argon gas - it provides additional heat retention in the room. Ask about this when buying, as some manufacturers decide to save on this aspect.

• Two-chamber - three glasses and two air chambers.
• Three-chamber - four glasses and three air chambers.

The most popular variety today is two-chamber. With an affordable cost, they provide excellent sound insulation (models with a single chamber cannot boast of this). The three-chamber options are too expensive, which is why they don't sell often.

Regarding the design features, there are 4 types of double-glazed windows:

• Normal (colorless).
• Energy saving.
• Toned.
• Multifunctional.

Now 70% of the market is occupied by energy-saving models. They are slightly more expensive than their regular counterparts. Their main advantage is the additional preservation of heat in the room. Therefore, we recommend that you opt for this particular variety.

Note that the need to replace the glass arises not only when it is completely damaged (which happens, by the way, quite rarely). If one of them has cracks, this is fraught with sad consequences (fogging, icing, etc.).

Main front of work

What do we need to work

First of all, prepare the following:

• New glass unit.
• Spatula or thin chisel.
• Plastic plates (specially designed for PVC windows).
• Other additional elements (linings, sealant, etc. - depends on the manufacturer).
• Gloves and goggles.
• Rubber mallet.

Dismantling of the old double-glazed window

First, we remove the damaged element. This is done in the following sequence:

• We place a spatula (chisel) between the glazing bead and the frame.
• Lightly hit it with a mallet. This will increase the gap between these elements.
• We take out the staple. Such procedures will need to be repeated three times (for each side). When you reach the last glazing bead, hold the glass as it may fall out.
• Carefully remove the glass pane. We do this with gloves so as not to injure our hands.
• Having taken out the element, we remove its dimensions, according to which we order a new one. It is advisable to do this in the same company that previously ordered a PVC window.

If the need for replacement arose in winter and living for several hours (or even days) with a missing window is not an option, contact the company in which you ordered the windows in advance. They have accurate measurements, according to which they will produce a new glass for you.

How to install a new double glazing

Replacement of glass in a plastic window is carried out in the following sequence:

• We insert the straightening plates into the frames. In this case, an indent of 8-10 cm must be observed. Only the bottom plate can be installed on a regular frame (which does not open).
• For opening sashes, we install plates at two opposite corners (top next to the hinge and bottom diagonally). The use of these elements allows you to maintain the correct geometric arrangement.

Please note: the number of bars varies from manufacturer to manufacturer.

All additional elements (linings, strips, rubber bands, etc.) must be ordered from the same manufacturer. This will avoid trouble (it varies from supplier to supplier).