How To Reseal A Window Fixed May 2026

Roll another rope of putty. Press it along the front of the glass where it meets the wood. Use a putty knife to smooth it into a neat 45-degree angle. Let the putty cure for 1-2 weeks before painting. Method 3: Using Weatherstripping Tape (The "Drafty" Fix) For fixed windows that don't open but still have a micro-gap around the sash, foam tape is the hero.

Is your window letting in a cold draft, fogging up between the panes, or leaking water during rain? If so, you are likely dealing with a failed seal. Learning how to reseal a window fixed is one of the most cost-effective home maintenance skills you can master. A failed seal not only makes your home uncomfortable but also spikes your energy bills by forcing your HVAC system to work overtime. how to reseal a window fixed

Run a strip of tape along the window frame (1/8 inch from the joint) and another strip along the wall/siding. This gives you a straight, professional line. Roll another rope of putty

Wet your finger with soapy water (or use a plastic spoon). Gently run it over the caulk to press it into the gap and smooth it out. Remove the painter's tape immediately before the caulk skins over. Method 2: Reglazing a Fixed Window (The "Glass Falling Out" Fix) For old wood-fixed windows where the glazing putty has cracked and fallen off, you need to reseal the glass directly. Let the putty cure for 1-2 weeks before painting

The "rabbet" is the L-shaped groove where the glass sits. Scrape it clean down to bare wood. Prime the wood with linseed oil or exterior primer—raw wood will suck the oil out of the new putty, causing it to crack.