Glazing Repair: 10 Things I Wish I'd Known In The Past

Glazing Repair: 10 Things I Wish I'd Known In The Past

Glazing Repair - How to Repair a Cracked Window

Glazing can have a significant effect on the efficiency of your house. This is especially true for older double-glazed Windows.

While it is possible to replace glazing points when the window is in place, it is much simpler and quicker to do so if the frame and glass are removed. This is also a good occasion to change the gaskets made of rubber.

Broken Glass

Windows that are cracked aren't just unattractive, but also allow valuable heat and sunshine to escape your home. Fortunately, it's often possible to repair a damaged window without the need for full replacement.

Wear safety glasses and gloves. You should also place an X-shaped piece of tape an "X" shape on the glass you plan to remove (duct or painter's tap works well). This will prevent any shattered glass from falling onto your work surface as you work.

Cover a small crack on your window glass using tape to keep water, insects and wind from getting. One strip of tape should be enough to cover any cracks that are superficial but if you're worried about the weather becoming worse before you can replace your window, use a more durable plastic cover like a tarp or trash bag, to keep the glass in place until you obtain a permanent fix.

For cracks that aren't as shallow, try using a strong adhesive specifically designed for windows, such as Loctite Super Glue Glass. This high-tech glue was designed to bond to glass and dries transparent to give a perfect finish. Apply it to the crack and allow it completely dry before applying a new layer.

Glass windows may also develop stress cracks. Stress cracks are usually caused by large temperature changes and can spread rapidly across the entire window if not addressed. To prevent stress cracks, score an arc of a tiny size with glass cutters close to the crack. This stops the crack from spreading and can slow it down by a day or so.

If you're replacing an old window take measurements of the frame to determine the size of the new pane. It should be slightly bigger than the opening to allow for expansion and contracting and also to compensate for any imperfections in the frame or the glass. Once you've cut the glass to the proper size apply glaziers' compound around the edges of the frame and the glass. Once the compound is dry, paint over it to match the rest of the window frame.

Double Glazed Windows Condensation Inside

Condensation on the interior of double-glazed windows is usually an indication that the seal along the window unit has failed. This is a serious issue since it means that heat from your home is being lost through the window and can be costly to both you and your energy bills.

New double glazing is designed to stop heat transfer between two panes of glass by sandwiching a layer air or a vacuum between them. This creates an airtight seal that prevents warm air from leaving the home. If the glass is warmer than the frame, condensation could form on the glass and cause damage to the window. If you've got condensation on your double glazed window that you are unable to eliminate it by opening the windows by using extractor fans, dehumidifiers or by trickle venting then you may need to contact an expert.

Condensation on the outside of double-glazed windows is uncommon however it can happen if the seal has begun to break down between the glass and the window frame. It is more prevalent in winter, when temperature is lower. This makes it easier for condensation. The most likely cause is a fault in the spacer used between the window and the frame. The spacer is made up of desiccant which is extremely absorbent and absorbs any excess moisture.

This can lead to water leaking through the gap after the desiccant is saturated. This can result in condensation and water leaking into the gap, which is difficult to eliminate.

The majority of reputable window manufacturers offer a warranty and will replace the glass and unit of a window if it is damaged by condensation. It is crucial to report any problems to your window installer immediately you notice them, so that condensation can be fixed as quickly as possible in order to prevent further damage to the window unit as well as the frame surrounding it.

Shattering Window Glass


A damaged or cracked window could be more than an aesthetic problem. It could also be a safety risk, especially if it is spreading. It's best to have it repaired as quickly as you can. Glass adhesives can be used for vehicle windows that you can buy on the internet or at many auto repair shops. You can also make use of a glass compound designed for home use that can be found at a variety of hardware or home improvement stores.

Before you begin any work, wear thick cut-proof gloves and safety glasses and sweep the area to eliminate large shards. Also, you should vacuum up any chips. This will stop them from cutting you or a glazing repair person later on.

It's a good idea work from a ladder, instead of laying on the floor. This will allow you to reach all the areas of the frame, and will keep you safe from falling glass. It's also a good idea to clean the rabbet before proceeding to the area around the perimeter of the window frame, where glass is likely to go. Apply a coat of linseed on the rabbet and then wipe it down. This will aid in helping the putty stick.

Once the frame is cleaned and the rabbet in place, it's time to get ready for the replacement of the damaged pane. Find the height and width of the opening in both directions and then purchase an item of double-strength glass that is 1/8 inch smaller in both directions. You'll need to buy glass points, which is a metal triangle that holds the glass in the right place.

With the window sash removed using a flat pry-bar to gently pry the sash off of the wood moulding. You may have scrape off old glazing putty using a utility knife or chisel. Use  double glazing window repairs  to warm any putty which won't come off easily. This will make it much easier to remove it.

When the frame is out of the mold then carefully press the glass in its place. Then, with the help of a putty knife or glazier's point, fill in the gaps around it and smooth them out. After the putty has dried, paint the frame in a similar color to the putty. Paint the glass and the compound by overlapping it slightly.

Replacement Window Glass

Wear eye protection and gloves when replacing a damaged pane of glass. Tape off the area around the damaged window to stop it from breaking again in a different spot after you remove it.

Utilize a utility blade to remove the old glazing compound from the wood frame and glazing points (small triangles of metal). Clean the frame opening and then apply a coat linseed to help the new putty adhere better.

Once the frame is prepared, measure it to determine the dimensions of the new windowpane. Then, purchase it from a home improvement store or other retailer. Order the panes 1/6th inch smaller in each direction than your measurement. This will ensure a perfect fit.

Installing the new window is easier than you think, however ensure you follow the directions of the manufacturer to ensure correct fit and a long-lasting life for your replacement pane. Use a wirebrush to remove any old paint or wood gunk from the frame opening. Then sand the wood to the bare wood in order to improve the seal.

When you're putting the new pane in place, use the tip of your putty knife and gently place the window on the wood frame. The glazier's tips should be pressed into the frame every six inches. This will help hold the new pane firmly in the frame.

After the frame has cured and the joint is painted, you can paint it multiple times to match the frame. Let the paint dry completely before cleaning and maintaining your windows. Maintaining your windows in good condition and ensuring they work correctly will extend their lifespan and improve the energy efficiency of your home. If your windows are old or are in poor condition, you may prefer the complete replacement of your windows. If you choose to go this route, we suggest choosing a high-quality, insulated window that will lower your energy bills. The kind of window you pick will also affect the total cost of your project.