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Glass Window Repair

Professional window repairmen work from high off the ground, maneuvering huge panes of glass. They work under extreme conditions and follow strict safety guidelines.

While wearing protective clothing remove all glazing putty and glazing points using a knife. A heat gun can help soften and remove the old putty.

Replacement

It's tempting to repair the glass of your window instead of replacing it when a pane breaks. However, replacing a window is often more cost-effective, and can also help prevent other problems that could affect your home's energy efficiency. You should also consider the kind of glass that is broken to determine if it is an interim fix or if you'll require a more permanent solution.

The first step in fixing damaged windows is to remove the sash, or frame and lay it flat on a work table. While wearing eye protection, gently wiggle and pull out any shards remaining in the window. Then, use a utility knife to peel off the glazing compound and glazing points that help to hold the glass in place. Keep the track of the components and where they are so that they can be put back in place.

After you've removed the frame and sash, you can start preparing to replace the glass. Make sure that the opening of the frame is the right size for the replacement window. Take measurements both ways across the opening, and then subtract 1/8 inch from each measurement in order to leave space for expansion and contraction of the frame and glass. Afterwards, purchase double-strength glass cut to these precise dimensions. It is recommended also to purchase enough glazier's clips or points to install every 6 inches around each window pane.

If the manufacturer is responsible for this, you can call them and file an claim. After the new glass has been erected, it is important to cover it with a thin layer of glaziers compound. After the compound is dry it is possible to paint the frame to match.

If you have a crack that is more than an inch, scoring a small arc with the edge of a blade just over the crack can help to stop it from spreading further. This technique isn't 100% completely foolproof, but it could slow the growth of the crack down to a manageable size until you are able to take more permanent measures.

Repair

Professional window installers know how to handle various kinds of glass and have the tools needed to complete an excellent job. They know how to dispose of waste properly and are therefore less likely than other people to leave behind scraps which could cause harm to family pets or members of the family. They are also experienced in working with various types of windows, and may be able to spot issues that a novice home owner might not be able to notice.

Wear safety goggles and gloves prior to beginning repair work on cracked glass. Even a small crack can cause shards of glass to fly away and pose a risk to anyone inside or around the house. It is also crucial to determine the cause of the crack in the first place, as it can help prevent future problems.

Make a two-part mix of epoxy. They typically are made up of a 50/50 mix of hardener and resin. They must be mixed quickly. When the mixture is done, apply it to the crack in the glass and allow it to dry. It should only take about a few minutes, but it is important to be quick as the mixture is extremely thick and drys quickly.

Once the epoxy has dried, you can get rid of excess epoxy with a putty blade. Then, you'll need to clean the area around the cracked glass. If you do not clean the area correctly, the residue could cause further damage to your glass. Once the glass is cleaned, use a putty knife to smooth the compound along the edge of the window and to align it with the wood frame.

You could consider using a plastic cover for a more durable option. A heavy-duty trash bag or tarp is ideal, but you can also use masking tape to cover the glass. This will stop the crack from spreading and will also keep water, wind and bugs out.

If you're unable to reach the window fast enough, you can use silicone sealant to create a temporary repair. Apply a small amount of silicone sealant to the edge of the broken glass. It won't completely fill the gap between frame and glass however it will keep the break in place while you repair it.

Repainting

If your glass windows are old, you may want to repaint them. This is a cost-effective alternative to replacing windows and can give your home a fresh new appearance. Make sure that the surface is clean prior to painting. Use rubbing alcohol or soap and water to remove oil smudges, window repair and other residues that could prevent paint from adhering. Wear rubber gloves when working on glass surfaces to avoid transferring oils from your hands onto the surface. Apply several thin coats rather than a single thick one. This will make the paint last longer and make your windows appear smooth and even.

If you're planning to paint your glass windows, be sure you have the appropriate tools at hand. You'll need a brush, sponge, painter's tape, toothpicks, a ruler and other tools, such as a rag or paper towel. You should also have the paint and brushes you'll use to complete the project. Follow the manufacturer's instructions. Have patience because it could take some time for the paint to completely dry.

If you're using solvent-based paint, also ensure that the room where you work is well-ventilated. This will reduce the risk of breathing harmful chemicals, and the paint will dry more quickly. Use a mask that is protective when using spray paints.

For older glass windows, it is necessary to prepare the surface prior to painting. Clean the glass thoroughly with soap and warm water. You can then apply rubbing alcohol to wash away any grease or oil that could hinder adhesion of the paint. Make sure the windows are dry prior to coating them.

If you have energy efficient double pane windows on your windows, it may be possible to make a claim for repair or replacement with the window manufacturer or the dealer who sold the windows. This is particularly true if you have experienced several issues with broken glass or condensation and the windows are covered by warranty.

Sealing

If you have double glazed window repairs-pane windows that have a cracked seal or newer insulated glass units (IGUs) that have experienced defogging or fog, there are many options to fix the issue. The most costly option is to replace the insulated unit and frame, but it may be necessary if condensation or fog are causing energy loss. Other alternatives include replacing the current IGU with a single pane or fixing it by drilling a small hole in the bottom of the unit and filling the solution with anti-fog.

You can also close the gap between the window frame and the threshold or sill by using a felt strip vinyl v-strips, or a door sweep. Felt is cheap and can be glued, nailed or stapled in place, but it does not provide a lot of protection from moisture. Vinyl v-strip weather stripping is durable and simple to install however, it can be costly and is usually reserved for areas that are exposed to abrasions that are high. Door sweeps can be easily nailed in place and are cheap. However, they provide only a small amount of protection between the threshold and the air.

To repair a damaged window seal, use a putty blade to scrape off the caulk. Wearing gloves and eye protection, carefully pry out the glazing points -- small fasteners that fix the glass to the frame's recess using sharp, pointed edges. Once you have removed the glazing points, scrub the grooves and sand the wood to a smooth finish. Clean any sanding dust then seal the wood surface using a linseed oil-based paint or clear sealer.

A putty or caulking knife can be used to apply traditional glazing putty, but a knife will provide an easier application and a more secure seal. Make sure you choose a putty specifically designed for glass windows as it will have higher adhesion and durability.

Apply a thin layer of putty along the inside edge of frame where it joins the glass. Slide the window into frame so that the scribed line on the glass is aligned with edge of frame. Apply pressure to the glass to compress the putty and create a tight seal. Smooth the compound with a gloved finger and then wipe off any caulk that is applied incorrectly or drips that have escaped before it dries.