Is it possible to change the window sill? Do-it-yourself window sill replacement

Replacing a window sill is important element when renovating a house or replacing windows. When installing the element, it is important to ensure that everything is done hermetically: this will ensure warmth in the room and eliminate fogging of windows and the formation of condensation. In addition, the window sill is an excellent stand for various objects, and if there is a heating radiator under it, the warm air from it will be distributed evenly.

In what cases and how should a window sill be dismantled?

Replacement plastic window sill may be required if the old element was deformed or damaged for some reason, or you are going to change the design of the room, the size of the window, and you need to install a wider or narrower element.

Changing the shape of the window sill

In any case, dismantling must be carried out carefully so as not to damage the window opening and reduce the need to repair the wall. The new one can be made from any modern material; The most popular is plastic, but structures made of wood, stone, metal, concrete or chipboard are also available. There is no fundamental difference between them; you should choose based on your own taste.

Artificial stone window sill

if you have Small child, do not forget for his safety.

Preparing for replacement

Before dismantling the old one, you need to select and buy a new one, from the material that you consider most suitable. PVC elements are favored by reliability, unpretentiousness, beautiful varied design, affordable price. Chipboard has almost the same properties; you can make a window sill from it yourself, but a significant disadvantage of such a material is its ability to absorb moisture and fragility.

In order to begin dismantling, you will need to stock up on the following set of tools:

• Chisel.
• Hammer.
• Polyurethane foam to secure the new structure and close the cracks.
• Powerful drill or hammer drill.
• Saw if you are going to use wooden or plastic elements.
• Cement.
• Silicone based sealant.

Necessary tool

Replacing a plastic window sill begins with dismantling the old element, if any. To do this, you will need to remove the old cement mortar from the end side of the structure. This can be done with a hammer drill or chisel.

Removing the old window sill

After the cement is removed, the window sill is knocked down with a hammer, striking from below. When it comes off, the structure can be removed. The vacated opening is cleaned of various debris, dust, and degreased. If the unevenness is very noticeable, you need to get rid of them, otherwise the new window sill will not sit level and may crack or have an untidy appearance.

What do we have to do, ?. Read how to solve the problem if a plastic window is jammed

Removing the frame of a plastic window

Installation of a new element on a window

Having figured out how to change the window sill on a plastic window and how to remove it, you can move on to the more important part of the work - installing a new element. The task does not require complex calculations or actions, so it can also be completed independently, without complex preparation for work.

In order for the window sill to efficiently cope with its tasks, you need to install it in a sealed opening. To do this, all seams are carefully filled with foam and sealed with sealant. Cold air will not be able to get into the room from the street, which will make the room warmer. The purchased window sill is adjusted to size; to do this, you will need to cut out the floodplain from the end parts, if you need to shorten the structure: this can also be done with a saw. Plastic, like wood, lends itself well to this procedure.

Inserting a new window sill

In order to receive Exact size, can be used as a sample old window sill. Either measure it or use it large sheet paper that will serve as a stencil.

Horizontal alignment of the new window sill

There should be no gaps between the window sill and the wall, and the structure itself must be level before it is fixed. If the window sill is not from moisture resistant material, it is recommended to coat the end with sealant. Any window sill is attached to the opening using polyurethane foam; it also covers the cracks that may form during the dismantling process. After this, the structure must be pressed down on top with something heavy until the foam dries.

Filling voids with foam

Knowing how to replace a window sill on a plastic window , you can completely do this job yourself. The actions will not take much time and will not cause difficulties. You will receive a new window sill, for which you will not have to pay for installation.

How to paint a plastic window sill - important question, since not all materials are suitable according to their characteristics. However, in some cases, before painting, the window sill needs to be either replaced or restored, and today we will tell you how to carry out the work.

Before you begin the main work, you need to purchase all the tools and also read our tips. They will definitely help you during preparation and finishing works for installation of products.

In fact, replacing a plastic window sill is enough simple work, the main thing is to strictly follow all the tips and recommendations we give.

How to replace a plastic window sill with your own hands - step-by-step diagram

Step 1: Dismantling the product

If you think that installing a wooden window sill or replacing it is a simpler and faster job, then you are deeply mistaken. If you are dealing with wood, you will have to work hard not to make mistakes during installation.

Installation and replacement steps:

1. It is necessary to approach the choice of the material itself very carefully. Thus, the boards should not be damaged by visible defects, which can lead to destruction of the structure of the material. In addition, keep an eye on how well the material is dried so that the wood does not begin to rot in the future.
   
2. After selecting the material, it is planed and ground on all sides.
3. A selection of grooves and teardrops is carried out, which means gutters with a width of up to 9 mm and a width of up to 5 mm, which should be located at the bottom of the board at a distance of approximately 3 cm from the front part.
4. Work on installing a window sill begins with the bottom of the board, which is mounted on the wall, having previously treated the wood with an antiseptic.
   
5. We place the prepared material on 25% of the bottom beam of the box and fasten it with long nails, securing the window sill as securely as possible. If the walls of your home are made of brick or stone, you should use lime-gypsum mortar instead of nails. Also, do not forget to treat the ends of the window sill again with wood antiseptics, especially if you have to embed the product in concrete.

An old window sill that has been updated several times still needs painting over time. However, you won’t be able to simply take paint and carry out the work, since cracks and unevenness usually appear on the old coating. Naturally, the product must first be restored before painting.. And today we will tell you how to carry out the work to get a good result.

To complete the task, we need to purchase materials and tools: sandpaper, brushes, spatulas, gloves for safety, you may need putty, remover and, of course, the paints themselves.

Stages of work:

1. First of all, wash the window sill using all the necessary products, which will remove grease, dust and fine dirt that can reduce the quality of the paint coating.
2. After this, the window sill is carefully sanded sandpaper, primed special composition for plastic, and then sanded again. After completing the work, degrease the product again and clean it of dust.
3. It is necessary to cover all surfaces around the window sill. masking tape and cover the floor with film so as not to stain it with paint.
4. For painting window sills PVC is better take advantage of everything spray paint from a spray can (this is often used when painting plastic elements in cars). Having chosen what to paint the plastic window sills with, we get to work. For reliability, you need to apply several layers, but be sure to wait until the first layer dries, and then carry out secondary processing.

In the modern construction market it is offered a large number of new buildings and apartments on the secondary market. In each of them, plastic windows with window sills made of strong and reliable plastic can be installed.

With all the splendor and sparkle of a new window, there is always real opportunity accidental damage to the window sill plastic board. Such troubles can be eliminated by taking some repair measures.

These are measures such as:

• gluing film,
• new plastic coating equipment,
• complete dismantling of the window sill and replacing it with a new one.

Sometimes, with particularly severe chips or deep scratches may be required complete replacement window sill. It should be remembered that this entails a violation of the integrity of the wallpaper and plastic slopes.

There are two ways to remove the plastic window sill board. Carefully file the mounting foam under the window sill and disconnect the adjacent slopes and pull the board towards you. In this way, the integrity of the neighboring wall covering and make a replacement with minimal financial costs.

The second method of dismantling window sill boards is simpler, but also causes more destruction. The slopes should be removed and a certain amount of plaster removed from the window sill. Then all the mounting foam is cut off and the window sill board is removed with a sharp jerk.

With any method of dismantling a plastic window sill, after installing a new plastic panel under the window, you will have to repair the consequences of the repair, clean the room and restore order in the room. It’s a troublesome task, but it allows you to save some money.

Replacing a window sill under a plastic window doesn’t seem very good at first challenging task, but if you follow all the rules, then you should know several technological techniques.

A plastic window sill board should be purchased 15-20 cm longer than the width of the window block, since the edges of the window sill should go inside the wall. The covering should protrude forward by at least 5 cm.

The new board is fastened using mounting adhesive or construction cement mortar. Sometimes several screws can be screwed into the sides of the window sill where it rests on the wall.

The window sill board should be installed at an angle of approximately 3 mm towards the room. This slope will allow condensation to drain without stagnating on the windowsill. After installing the new window sill and the polyurethane foam has completely set, plugs are installed on the ends of the plastic boards.

Under plastic windows, window sills are installed not only from PVC, but also from other building materials.

A wooden or concrete window sill board can be repaired right on site, without removing it from its place. To eliminate cracks or chips on such surfaces, putty of damaged areas is used.

For the best repair of damage, you should dilute the putty powder not with ordinary water, but liquid primer deep penetration. This results in very strong and reliable protection against further cracking.

When making putty of this composition, you must immediately carefully level the surface of the window sill, eliminating even the slightest unevenness. Fully cured primer-based putty is very durable and cannot be smoothed out using sandpaper.

Also watch a useful video about installing a plastic window sill with your own hands

During the operation of any home, from time to time there is certainly a need to carry out Maintenance individual elements interior Less often, but still, replacement of window sills is also required, which is not difficult to do with your own hands if you have some skills and clear instructions for the sequence of actions. You can find out all the details on how to do this from this article.

Reinstalling this part window design may be required in several cases:

What material should I choose for a new window sill?

Modern models are presented on the market in several versions, so you can choose the design that is ideal for your purpose, both in terms of price, color, configuration, permissible load on the walls. The most popular solutions are:

Replacing a window sill with your own hands - technology

To reinstall this part of the window structure, you will need a step-by-step approach, which consists of:

• preparation of instruments;
• dismantling the old window sill;
• installing a new one.
  

  Important! The easiest way to replace window sills plastic windows, but if you have installed structures made of other materials, then you will only need even greater care, and the sequence of the process will remain unchanged.

Tools

To avoid delays during the work, prepare the following set of equipment in advance:

Removing the window sill

The dismantling procedure is actually not as labor-intensive as you might initially think.

To do this work quickly and efficiently, follow these recommendations:

Installing a new window sill

It is not enough to simply insert a new canvas into an old niche. There are a number of rules for preparing it and the new slab itself, which you must follow when replacing the window sill with your own hands:

1. Cut out excess parts along the ends of the window sill and slopes to ensure the most accurate fit into the window opening.
   

   Important! If the old canvas is preserved intact, rational decision will be used as a template when forming a new slab.
   

2. Treat the edges at the ends with an antiseptic solution if you choose products made from lumber or solid wood to reduce moisture permeability.
3. Create cement screed along the horizontal base of the niche if the height of the new window sill is less than the old one, or deepen the opening if it is not high enough.
   
4. Seal all gaps and cracks in the walls adjacent to the installation site, if any, using cement mortar or putty.
5. Along the width of the window opening, in the place where the window sill will future join the frame, apply silicone sealant to prevent the formation of voids through which cold will penetrate into the room.
6. Install prepared boards into the opening, which will become a support for the window sill.
7. Check the horizontal evenness with a level.
   
8. Lay the window sill slab on top of the bars.
   
9. Mark its position by level.
10. Place a weight on the slab.
    
11. Fill in all the gaps polyurethane foam.
    
    

    Important! For plastic structures modern manufacturers They offer special profiles in the kit, which further facilitate the process of installing a new slab. Watch the proposed video on replacing a window sill with your own hands made of plastic with profiles.
    

12. Seal the protruding edge under the window sill cement mortar or polyurethane foam.
13. Make a technical break of 24 hours until the solution completely hardens.
14. Remove excess assembly knife, if you used foam.
15. Sand the surface with a float or fine-grained sandpaper if you treated the gaps with cement mortar.
16. Remove the protective coating from the surface of the window sill.
    
17. Paint or plaster the slopes to give the window an aesthetically pleasing appearance.
    

Conclusion

As you have seen, replacing a window sill with your own hands is simple procedure, which can be completed within 1-2 days. Main conditions for long-term operation new slab:

• competent choice of design and material from which it is made;
• compliance with installation rules;
• use of high-quality consumables;
• accuracy when performing work;
• proper regular care behind the surface.

As a rule, the installation of a window sill is carried out by specialists, but you can do the work yourself. The main thing is to do everything according to the rules. Before installing a plastic window sill, you should read the instructions for the entire process.

Preparatory work

First you need to prepare the tool and material. Here's what you need to have:

• Hacksaw or electric jigsaw;
• Building level;
• Tape measure and pencil;
• Perforator with a set of drills and chisels;
• Polyurethane foam.

In addition, wooden blocks or special PVC linings, as well as a spray foam gun, may be useful. Based on condition window opening, these elements may not be enough. In this case, you should provide perforated plates for fastening the window sill.

Fit to size

When all the tools and materials have been prepared, you can proceed to the next stage of work. It consists of taking measurements and transferring the markings to PVC board. To do this, you need to add 10 cm to the length of the opening. This measure needed to create an attractive look for the entire window opening.

Once the markings are completed, you need to cut out the PVC window sill. This process is easily performed with a jigsaw, but if you don’t have one, you can use a regular hacksaw. But slopes require a lot of effort. Where the plastic window sill will be installed, it is necessary to make grooves. Their depth should be 5 mm greater than the length of the part being installed.

It is best to make grooves in the slopes with a chisel, which we install in a hammer drill. They should have an even shape that will not interfere with the entry of the window sills. After chiselling, the opening must be cleared of debris. And after that, proceed to the next stage.

Installing window sill boards level

The base and slopes are prepared, which means you can proceed to fitting. To do this you will need a building level. Before correctly installing a plastic window sill, pads should be placed on the base. On small windows Two supports will be enough, but for a balcony you should use at least three. This operation easy to do yourself.

The pads should lie strictly at the level of the window, which will allow you to properly align the plastic window sill before changing it. When everything is ready, you should try on the part in a new place. To do this we insert plastic board into the grooves of the slopes. Next, move it all the way. Nothing should interfere with this process.

Next, the installation of the window sill continues to set the optimal slope. This is necessary to remove condensation naturally. It should not accumulate at the base of plastic windows. To do this, you need to lower the edge of the slab, looking inside the room, a couple of degrees. The building level will show how much the slope has changed. To ensure that the opening remains level, you need to check the position at the edges and in the middle.

The level is adjusted using pads. Without them, installing a new window sill will be very problematic. It is recommended to purchase special plastic elements, but they can be replaced with wooden linings. For work you should use an ax or chisel.

You need to install a plastic window sill with your own hands so that between it and window frame there was no gap. This is very important point, which should be given close attention. The gap is eliminated with wood chips placed under the product. It is recommended to fix the edges of the panel when the position corresponds to the desired one. Each change must be checked at the building level so that the PVC window sill does not change its position.

Fastening the structure in place

After fitting, when the correct position is achieved, proceed to the fastening stage. This action is carried out by polyurethane foam, which evenly fills the space. But before installing the window sill, the cylinder needs to be heated a little. Temperature allows for more efficient foam that fills better. free places.

The best way to heat the cylinder is to place it in warm water. But you can also use the heating system if the installation of a plastic window sill takes place from autumn to spring. The heated container is shaken well, mixing its contents. Next, the space under the slab begins to be filled. There should be no voids left.

The work doesn't end there. The fact is that polyurethane foam has enormous expansion. This circumstance has Negative influence on the position of the board between the slopes. In order not to spoil the work, it is necessary to strengthen the element. Many people use it for this purpose ordinary bricks, which are installed on the surface of the slab.

There is no need to worry about the product, since there are stiffening ribs inside the product. They can withstand heavy loads, allowing an adult man to stand freely on the window opening.

Installation of a window sill on a balcony

Modern loggias and balconies are now being actively glazed. This is not surprising, because additional effective area it will not be unnecessary for anyone. And everyone knows firsthand how much such pleasure costs. Therefore, a window sill on a balcony is no longer a curiosity.

Basically, the installation of a plastic window sill on a balcony is carried out at the time of glazing. But if this has not been done, then you should install this interior element yourself.

Before replacing the window sill, you should prepare the metal brackets. This is necessary if it is not possible to install it under existing windows. In most cases metal elements required, which greatly simplifies the process. The brackets are attached to the parapet using anchors. They also allow you to strengthen the window sill, which helps to increase the payload on it.

Fixed brackets should be no more than 1 meter apart from each other. Construction level The horizontal slope is checked. Before attaching the holders, you should tighten the thread. This will allow you to achieve levelness along the horizon and simplify the work.

When the brackets are completely secured, the installation of the PVC window sill with your own hands begins. It is secured using self-tapping screws, which are screwed into the bottom of the element. It is better to perform this operation with a screwdriver, because it significantly speeds up the process.

After installation, the window sill on the balcony must be treated with sealant. This measure is needed to get rid of a possible gap that is formed due to uneven edges. Unlike installation in a window opening, a balcony window sill does not need to be reinforced with polyurethane foam. All plastic elements quickly take their places, where they sit firmly, performing their assigned tasks.

Replacing a window sill in a wooden house

Installation diagram of a plastic window sill in wooden house very similar to the process performed in an apartment. First, the old wooden window sill is dismantled and the base is prepared. The side slopes must be put in order so that the plastic part can freely take its place.

In order not to cut and freely attach the plastic window sill, it is better to cut the sides from wood. For this work you will need a chisel and a hammer. This creates grooves where the fastening will be made. It happens that they may already be ready and have a wooden window sill in them.

Once the grooves are ready, pads are placed on the base of the opening. Do-it-yourself installation of a plastic window sill into the opening is done only on them. The position of the stands can be fixed so that they do not move under the mounted element. Before fixing the product, you need to check the position of the plate. Afterwards it is fixed and the voids under it are filled with polyurethane foam. Many people ask the question of how to install a window sill in a different way. But foam is the best and most effective option.