How: To Reseal A Window Fixed

Immediately after applying a line of sealant (before it begins to form a skin), smooth it out. Lightly drag a caulk smoothing tool or a gloved finger dipped in a little water (for water-based/polymer caulks) or alcohol (for silicone) over the bead. This forces the sealant into the joint and creates a clean, concave shape.

For a flawless, professional finish, apply rows of painter's tape parallel to the joint—one strip on the window frame and one strip on the siding or glass. Leave a gap between the tape strips that matches your desired caulk bead width. Step 6: Apply the New Sealant

Resealing a fixed window is a small effort that pays big dividends. Not only will you eliminate that annoying draft, but you are also protecting your home from moisture damage and reducing your energy footprint. how to reseal a window fixed

Optional, but highly recommended for loosening stubborn, weathered silicone.

Use a putty knife to pry up and peel away the old strips of caulk. Immediately after applying a line of sealant (before

If you used painter's tape, peel it off immediately while the sealant is still wet. Pull the tape away at a 45-degree angle to ensure a crisp, sharp edge. Step 8: Cure Time

Resealing the perimeter of a fixed window (the frame-to-glass and frame-to-wall joints) restores its original performance. In most cases, you don’t need to remove the window entirely—just work from the interior or exterior, depending on where the failure is. For a flawless, professional finish, apply rows of

Before gathering tools, it helps to understand exactly where a fixed window seals. Unlike operable windows that rely on compressible weatherstripping, fixed windows generally use two types of seals:

Leave a small gap between the tape strips (about 1/4 inch) where the caulk bead will sit. Step 5: Prepare the Caulking Gun

Hold your hand or a lit incense stick near the window frame on a windy day. Moving air or dancing smoke indicates a draft.