How to Fix Drafty Replacement Windows: Simple DIY Solutions
Drafty windows can make your home uncomfortable and increase energy bills . Even replacement windows that are relatively new may develop drafts due to improper installation, weatherstripping wear, or frame gaps. Fortunately, there are several DIY solutions and preventive measures to stop drafts and improve energy efficiency. 1. Identify the Source of the Draft Before fixing a draft, determine where the air is coming from: Window frame gaps – Between the window and the wall. Sash gaps – Between the sliding or double-hung sashes. Weatherstripping wear – Old or damaged seals. Glazing or caulk issues – Cracked or missing sealant around the glass. A simple test: hold a lit incense stick or candle near the edges of the window; movement of the smoke indicates air leakage. 2. Quick DIY Draft-Fixing Solutions A. Replace or Add Weatherstripping Foam tape or V-strip weatherstripping works well for sliding and double-hung windows. Remove old weatherstripping, cle...