What NOT To Do When It Comes To The Glazing Repair Industry Glazing Repair - How to Repair a Cracked Window

Glazing can have a significant impact on the energy efficiency of your home. This is especially true in older double-glazed windows.

While it is possible to change the glazing points while the window is still in position, it is faster and simpler when the frame and glass are removed. This is also a great occasion to change the gaskets made of rubber.

Broken Glass

Cracked glass isn't just unsightly, it can also let valuable heat and sunlight escape your home. Fortunately, it's possible to repair a damaged window without the need for full replacement.

Start by putting on protective gloves and safety glasses. You can also employ duct tape or a painter's taps to create an "X" on the glass you plan to remove. This will prevent any broken pieces from falling as you work, which can protect you from serious injury.

If you have a small crack in your window glass Cover it with tape to keep out the elements like wind, water and insects. If the crack is only superficial just a single strip of tape will be enough. However in the event that the weather is likely to get worse before you can replace the window, you might need a more durable plastic cover, such as a trash bag or tarp.

Make use of a strong adhesive that is designed for windows to fix cracks. Loctite Super Glue Glass is a great choice. This high-tech glue is made to bond to glass, and then dries crystal clear for the perfect finish. Apply it to the crack in the glass and let it dry completely before applying another layer.

Stress cracks are another common issue that can occur to your glass window. They're typically caused by dramatic changes in temperature, and can spread quickly across the entire glass window if they aren't repaired. To prevent stress cracks make an arc using glass cutters close to the crack. This stops the crack from spreading and can reduce the size by a day or two.

If you're replacing an old window take measurements of the frame to determine the size of the new pane. It should be slightly larger than the opening in order to allow for expansion and contraction and to compensate for any imperfections on the frame or on the glass. After cutting your glass, apply glaziers compound around the edges of the frame and glass. Once the compound dries paint it over to match the frame of the window.

Double Glazed Windows Condensation Inside

Condensation on the inside of double-glazed windows is typically an indication that the seal along the window unit has failed. This is a significant issue as it means that the heat that is coming from your home is lost through the window and could be costly for you and your energy bills.

Double glazing is designed to stop heat transfer between two panes, by sandwiching an air or vacuum layer between them. This creates an airtight seal that stops warm air from escaping the home. However, if the glass is colder or colder than the frame, then condensation can form on it and damage the window. If you notice condensation on your double glazed window and you cannot resolve it by opening the windows, with extractor fans, using dehumidifiers, or by trickle venting, you might require the help of a professional.

It's less likely for condensation to appear on the outside of double-glazed windows but it can occur if the seal between the glass and window frame is beginning to break down. This is more common in winter, when the temperature is lower, making it easier for condensation to form. This is caused by a defect in the spacer between the frame and the window. The spacer is filled with desiccant which is very absorbent and absorbs any excess moisture.

The issue is that when the desiccant gets saturated, it begins to break down and water can begin to seep through the gap between the glass units. This can cause water and condensation to build within the gap, which is difficult to clean out.

Most reputable window companies provide a guarantee and will replace the unit and glass of a window in the event that it is damaged by condensation. Report any problems as soon as you can to the window manufacturer so that the condensation can be repaired as fast as possible to prevent further damage.

Shattering Window Glass

A cracked window pane isn't just a visual issue, it can also be a security risk, especially if the crack has been expanding. It's best to get it repaired as soon as you can. There are several methods to fix it, including using glass adhesives made for windows of vehicles and can be bought online or at many auto repair shops. Alternatively, you can use a glazing compound intended for use at home and can be purchased at most hardware or home improvement stores.

Before beginning any work, wear thick protective gloves and safety glasses. You can then sweep the area to get rid of large shards. You'll also want to remove any chips that have fallen. This will stop them from causing injury to yourself or a glass repair professional in the future.


It's a good idea work from a ladder, instead of standing on the ground. This will allow you to reach all areas of the frame and will protect you from falling glass. Before you begin, it's a good idea clean the rabbet. This is the area where glass will be placed. Apply a coat of linseed on the rabbet and then wipe it clean. This will help the putty adhere.

After the frame has been cleaned and the rabbet is prepared, it is time to put together the replacement pane. Purchase a piece of double strength glass that is 1/8 inch smaller in both directions. You'll also need to purchase glass points, which are metal triangles which keep the glass in place.

With the window sash out of the way, carefully pry it away from the wood molding using a straight pry bar. You may need scrape off old glazing using a utility knife or chisel. Then you can use the heat gun to warm up any putty that doesn't fall off. This will make it easier to remove it.

Once double glazing window repairs has been free of the mold then carefully press the new glass into its place. Fill in the gaps with the glazier's tip or a putty knife. Once the putty is dry paint the frame in a similar color to the putty. Paint it slightly over the edge of the compound, then onto the glass to seal it completely.

Replacement Window Glass

Wear a pair of gloves and eye protection when replacing a damaged piece of glass. Tape off the area around the damaged window to prevent it from breaking again in a different location when you remove it.

Start by removing the old glaze compound and glazing points (small metal triangles) from the sash frame using a utility knife. Clean the entire frame opening and then apply a layer of linseed to help the new putty adhere better.

Once the frame is in place, measure it for the new window pane. Then buy it from a home improvement store or another retailer. Be sure to purchase the pane 1/6th inch shorter in every direction than the measurement to allow for a snug fit.

It's not as difficult as you think to set up the new window. However, it's essential to follow the guidelines provided by the manufacturer to ensure a proper fit and long-lasting replacement pane. Make use of a wirebrush to clean any old paint or wood gunk from the frame's opening. Then sand the wood to the surface of the wood to improve the seal.

Make use of the point of the putty blade when installing the new window to lightly place it against the wood frame. Then, press the glazier's points into the frame about every six inches to secure the window securely in the frame.

Once the frame is cured, paint the new joint several times to match the frame. Let the paint dry completely before cleaning and maintaining your windows. Maintaining your windows in good condition and operating well will prolong their lifespan and increase the efficiency of your home's energy usage. If your windows are old or not in great shape it is possible that you would be better off with a full window replacement. If you decide to go this route, we recommend choosing a high-quality, insulated window that will reduce your energy costs. The type of window that you choose will also affect the overall cost of your project.