How to Replace Cracked Sunroom Glass

What You'll Need
New Glass
Weather Stripping
Masking Tape

A sunroom is a great addition to any home. They give the home more living space, while letting you feel like you are outside at the same time. Unlike a backyard patio, or deck, you can use a sunroom year round and enjoy the many benefits of the floor to ceiling windows.

During the lifetime of the sunroom, there will more than likely come a time when you will need to replace a cracked sunroom window. The window can become cracked for many different reasons. Regardless of the reason that the window became cracked, it will need to be replaced. Replacing the cracked glass is a more advanced DIY type project, but can be done with a little patience and focus. Here is a quick guide to help you replace your sunroom glass.

Step 1 - Tape the Window

Once the window has been cracked that means the integrity of the window has suffered. Because of that one crack, any wrong move can shatter the glass. To keep the window intact while you are removing it, apply masking tape. Put the tape on the window from each corner in a diagonal pattern. Then place tape going from top to bottom and side to side.

Step 2 - Remove Trim and Sealant

If your sunroom has trim around the windows you will need to remove it. Use a screwdriver to remove the screws holding the trim on, or a pry bar if it is nailed. Use your scraper and carefully remove the caulking and sealer that is holding the window to the frame. Work your way around the window and remove all that you can. Do not be tempted to remove some and then pry the window off.

Step 3 - Remove Window

Once all the sealant is taken away from the window you will need another helper to remove the window. Have them stand inside the sunroom and apply some pressure along the edges pushing the window towards the outside. You will need to be standing on the outside with hands near the edges to catch the window as it is pushed out. Start at the bottom and then work your way up the window. Most of the time, once you get a portion of the window out the rest will follow.

Step 4r - Clean out Frame

Use your scraper and clean out the frame of any remaining sealant and caulking.

Step 5 - Apply New Sealant

Apply a bead of new sealant all the way around the perimeter of the window frame. Keep it even all the way around.

Step 6 - Install New Window and Replace Trim

With the help of a friend, carefully lift the new glass into the window frame. Set it firmly into the sealant and apply a small bead of caulking to the outside of the glass. Replace the trim around your window and screw it back in with your screwdriver.