How to Fix Gap Between Window Glass and Frame

If you have a gap between your window glass and window frame, there are a few things you can do to fix it. You can either caulk the gap or use weatherstripping. Caulking is the easier option, but it may not effectively keep out the cold air and moisture. Weatherstripping is more work, but it is a more effective seal. In this blog post, we will give you some tips and advice on how to fix gap between window glass and frame.

How to Fix Gap Between Window Glass and Frame

First, make sure the window is shut and locked. Second, remove the screws that hold the window in place. Third, slide the window out of the frame. Fourth, apply caulk to the gaps around the window using a caulking gun. Fifth, reattach the window to the frame and reinstall the screws. Sixth, close and lock the window. Read on to know more!

8 Ways on How to Fix Gap Between Window Glass and Frame

1. Caulk the Gap

You can easily caulk the gap between your window and frame. This method is very effective, and you won’t see any light coming through your window glass after taking care of this problem. To caulk the gap, scrub it with a wire brush to remove any debris from the surface. Then apply a thin layer of caulk on top of the area and smooth it out. After doing this, clean away any excess using a damp cloth or rag.

2. Cover Over With Wood

You can cover your window glass with wood if you would like. The main reason for this is because there is a gap between the window glass and the frame in your door. You will need exterior grade contact adhesive, galvanized nails or brads, a coping saw, and an air compressor to get the job done right.

Before nailing, fill in any holes or cracks with exterior-grade wood filler. Next, ensure that the board fits tightly into the space between your window and frame. Next, apply a thin adhesive layer to hold it in place on your window opening. Boards are typically used for inaccessible windows by applying them from above but work well for windows that can be easily reached from above.

3. Add a Draft Blocker

Add a Draft Blocker to Your Window

Drafts are the number one reason why your door doesn’t seal completely. If you have a draft coming through your door, it means that there is air escaping from the inside of your home and going outside. This makes your furnace or heater work harder to maintain a comfortable temperature throughout the house. Adding a draft blocker is an easy solution, but you’ll need to get the right size of the blocker for your needs.

4. Side Seal Weather Stripping

Side seal weather stripping helps keep air from getting out around your door. Cut it with tin snips or put on protective gloves before using wire cutters on it because you will be left with metal edges after you cut the strips. The side seal weatherstripping fits over the top of your door and is shaped like half an “L.” Just slide it into place on the side where your door opens after cleaning away any debris from the area using a wire brush or sandpaper.

5. Use Pipe Foam

Pipe foam is the right solution to avoid using caulk or adhesive. You can get it in different thicknesses, so choosing the right one is important. Place any pipe foam around your door frame and over any gaps between your window glass and frame. The process is simple and doesn’t require any tools or adhesives.

6. Spray the Gap With Acrylic Sealant

Acrylic sealant is another option that you can use to fill in gaps between your window and frame on wood doors. If you still want to open and close your door, this method isn’t for you because it makes your door stick. However, if you have fixed all other drafts in your home and just want to seal the last bit of air from getting out, this is a cheap solution that can be used easily. Just spray it into place on metal or wood doors using a clean-up brush to remove any excess.

7. Roll On Paint

Paint the gap on your door

Paint the gap on your door with exterior grade paint. You’ll need to prime the area using solvent or primer before painting it. Ensure that you select paint meant for use on metal surfaces, so it doesn’t peel off over time.

8. Spray Foam in Place

Use spray foam for a quick fix to seal any gaps on your door. You will need a few cans of foam to do the job right. Spray it into place on metal or wood doors using a clean-up brush to remove any excess.

Some Tips and Suggestions

1. Make sure your window is as clean as possible.

2. Put the transparent tape on the edge of the glass lip-to-lip to create a membrane.

3. Apply a thin line of silicone caulking at the seam and wipe away excess with a wet paper towel or cloth, not your finger.

4. Use the putty knife to smooth silicone into the seam by making small, horizontal passes across the caulking line.

5. Let caulking dry for an hour or two, then scrape away any excess with the flat side of the knife blade in a single pass.

Let Caulking Dry for an Hour or Two

6. Give several hours for the caulking to cure.

7. Remove adhesive vinyl from glass and other surfaces, especially if you plan to re-use it after the silicone has cured completely.

You Can Check It Out to: Put a Hole in Glass Without a Drill


Window frames are often made using wood or aluminum, but the space between them and the glass is not always even. This can lead to air leaks that cause your heating bills to go up unnecessarily during cold months. However, there are a few methods you could use to keep drafts at bay while still enjoying natural light in your home. The first step is to remove the sash from the window opening for replacement or adjustment of parts if necessary.

If you need a new sash, you can find them at any home improvement store in your area as long as they carry those types of products. We hope this article has helped give you some ideas of how to fix gap between window glass and frame. If you ever have any questions, we’re always happy to help!

Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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