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How to Fix Window Leaks Without Removal
- Jan 28, 2018 -

If your windows leak, wind or moisture can enter through cracks or unsealed joints. Drafts can increase the cost of your electric bills by allowing warm air to escape or enter your home around the windows. If water enters these cracks, it can cause water damage, leading to expensive repairs. Unless you intend to replace leaking windows, you do not have to remove the windows to fix the leaks. Gaps less than 1/4 inch wide are easily fixed with silicone sealant


Cut the tip off of a tube of silicone with a utility knife and load the tube into a caulking gun. Push the plunger up to meet the end of the tube.


Position the tip of the tube against a gap around the edge of the window that is less than 1/4 inch wide. Squeeze the trigger to apply caulk over the gap. Fill all small gaps around windows in this manner.


Push foam backer rod into slightly larger gaps with the end of a putty knife. Apply caulk over the foam backer rod to seal the gap.


Spray expandable foam into gaps too large to fill with foam backer rod and allow the foam to dry completely. Cut away excess foam with a utility knife, then apply caulk over the foam.