Repairing a failed window seal is a cost-effective alternative to replacing the entire window unit. By following these steps, you can extend the life of your windows and maintain their insulating properties. Let’s dive in and learn how to fix that pesky window seal!
Step 1: Identify the Problem
The first step in repairing a failed window seal is to identify the problem. Look for signs of condensation or fogging between the panes of glass. If you notice moisture buildup or a hazy appearance, it’s likely that the seal has failed and needs to be repaired.
Another way to check for a failed seal is to look for distortion in the glass. If the glass appears wavy or distorted, it could be a sign that the seal has failed and the gas between the panes has escaped.
Step 2: Prepare the Window
Once you’ve identified the problem, it’s time to prepare the window for repair. Start by removing the window sash from the frame. This will give you better access to the seal and make the repair process easier.
To remove the sash, locate the screws holding it in place and remove them. Carefully lift the sash out of the frame and set it aside in a safe place.
Step 3: Remove the Old Seal
With the sash removed, it’s time to remove the old seal. Use a sharp utility knife or a putty knife to carefully cut away the old seal. Be careful not to damage the glass or the frame during this process.
Once the old seal is removed, clean the surface of the glass and the frame to ensure a good bond for the new seal.
Step 4: Apply the New Seal
Now it’s time to apply the new seal. Choose a high-quality silicone or polyurethane sealant that is designed for use with double pane windows. Apply a generous bead of sealant around the edge of the glass, making sure to cover the entire surface.
Use a putty knife or a caulking tool to smooth out the sealant and ensure a tight seal. Be sure to apply the sealant in a continuous bead to prevent any gaps or air bubbles.
Step 5: Reassemble the Window
Once the sealant has cured (follow the manufacturer’s instructions for curing time), it’s time to reassemble the window. Carefully place the sash back into the frame and secure it with the screws you removed earlier.
Make sure the sash is properly aligned and that the window opens and closes smoothly. If you notice any gaps or air leaks, apply additional sealant to fill them in.