Now that temperatures have dropped, it’s time to weatherproof your windows to keep heat in and cold drafts out.
We noticed a draft around one window and, on closer inspection, found that the existing weatherstripping was cracked and pulling away. That’s an easy problem to fix with silicone caulk. Here’s how we handled it.
Start by thoroughly cleaning the window and removing any old caulk or deteriorated weatherstripping. If the material is already dry and cracked, it will often pull away easily by hand. For stubborn residue, use a razor blade or a flat screwdriver to carefully scrape it off without damaging the frame.
For sealing, use a 100% silicone caulk—GE’s silicone products are a reliable choice because they’re weatherproof and resistant to UV damage, which helps them hold up through hot summers and sun exposure.
Once the old sealant is removed and the surface is clean and dry, apply an even bead of silicone caulk along the gap where the weatherstripping was. Smooth the bead with a caulk-smoothing tool or a wet finger to ensure it adheres evenly and creates a continuous seal. Allow the caulk to cure according to the manufacturer’s directions before exposing it to moisture or temperature extremes.
Weatherproofing windows with silicone caulk is a cost-effective, long-lasting solution that reduces drafts and improves energy efficiency. For a complete, step-by-step walkthrough of the process, see the full guide on weatherizing your windows.