How To Seal Window Ac < 2025-2026 >

Here is your step-by-step guide on correctly.

Many people seal the outside edges but forget the inside. Apply a strip of foam tape on the inside of the window sill where the AC rests to prevent air from circulating through the unit when it is off. how to seal window ac

If you have a casement window (crank-out) or a very large gap (over 1 inch wide), foam tape won't cut it. You may need a custom-cut plexiglass or plywood panel. In that case, hiring a handyman for 30 minutes is worth the money. Here is your step-by-step guide on correctly