Many homeowners opt for window glass because of its excellent aesthetics and durability. If you have glass windows, there’s a good chance that they can last for years without repairs. But there are times when window glass gets foggy, scratched, or broken. 

In this article, we’re going to explore the solutions and repair tips for broken window glass, surface scratches, and fog issues between dual-glazed panels. 

Basics of Replacing Window Glass

It’s pretty easy to repair or replace a cracked or broken window pane, especially if it's relatively minor damage. But you should contact a window glass dealer if you want to repair or replace dual-glazed or other high-performance window glass. 

Typically, you have to order the special window pane, and you’ll need the replacement prepared before removing the damaged pane. Now, let’s get to the basics of replacing window glass. 

First, you have to remove the damaged window pane. Your safety is a priority, so make sure to wear heavy gloves and safety glasses as you work. Then, use duct tape and apply it on the damaged pane to prevent glass fragments from falling. 

Use a ladder and do the job from outside if necessary. You can also remove the sash if the window is in an upper story for safety. If you think you can’t handle the job by yourself, I recommend contacting a professional to do it. 

The window glass you buy should match the other window panes in the room. Purchase the same type of glass as the original when replacing your window pane. You can take a glass fragment to hardware and ask the dealer to match its features.

Vinyl or Metal Window Sash

Vinyl or metal window sash has plastic or metal moldings, a rubber seal, or a metal spring clip that holds the glass pane. You can remove the parts that support the glass, detach the old glass, and install the new one into the sash. 

Replacing glass on a continuous or separate rubber gasket requires you to detach the screws from the sash and pull the vertical end away from the sash. Then, attach the gasket around the new glass, slide the glass into the sash, and make sure the end is securely tight. 

For glass held by rubber seals, you need to unscrew the two halves of the sash and remove the inside part. Then, install the new glass against one half of the sash, replace the other half, and screw the parts to keep them secure. 

Replacing glass held by plastic or metal moldings requires you to insert a putty knife on the end of a molding piece to loosen it. Then, pull out the molding strip and attach the new glass pane. Lastly, push the two molding pieces into place using your hands. 

Wood Windows

First, remove the damaged glass pane. Then, get rid of the old putty by softening it with a heat gun and chiseling it out. Use long-nose pliers to detach the old glazier’s points, and brush and sand the wood. You can apply a wood sealer for the coating. 

Make sure the new glass pane is put securely in place by applying a glazing compound putty. Then, use a putty knife to push the glazier’s points into the sash. 

Scratch on the Window Glass Surface

You can apply a gentle metal polishing compound to remove an unsightly scratch on your window glass. Using clear nail polish is also another option you can try. Make sure to remove excess solution using a clean cloth. 

Fog Issues on Window Glass

Warm indoor air and low outdoor temperatures in winter can cause a foggy appearance on your window glass. The condensation on the window glass can, in turn, cause mold that eats away at the window sills and frames. 

• Fog Between Glass Panes. Improper application of sealant around the glass’s perimeter can cause condensation to enter between the glass panes. In this case, you should replace the glazing because it’s hard to get rid of condensation between glass panes. It’s advisable to purchase quality thermal windows with IGCC certification and a warranty of up to 10 years. 

• Fog on Interior Surface. A high level of humidity inside the house can cause fog on the interior surface of your glass window. The solution to this problem is increasing your ventilation. You can also buy a dehumidifier to reduce the humidity level inside your home.

Final Thoughts

Repairing or replacing a window glass requires some knowledge and skill. You can do it by yourself by reading tutorials on the internet. But if the work is beyond your capacity, you can always call a professional to do it.

When repairing or replacing window glass, make sure that you prioritize your safety. Wear heavy gloves and safety glasses to avoid getting hurt by glass shards.