How To Repair A Rotted Window Sill [top] ★

🎯 Check your window’s weep holes and caulk the top of the sill where water seeps in behind the paint.

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👉 Save this for spring maintenance or tag a friend who needs to tackle that rotting sill before it reaches the frame. how to repair a rotted window sill

#HomeRepair #WindowSillRot #DIYHomeImprovement #WoodRepair #ExteriorMaintenance #HandymanTips Split image – left side showing a rotting sill with tools, right side showing the finished painted sill.

⏱️ ~2 hours + drying 💰 Cost: ~$30–$50 (vs $500+ for replacement) 🎯 Check your window’s weep holes and caulk

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1️⃣ – Use a 5-in-1 tool or flathead screwdriver to dig out loose, decayed wood. 2️⃣ Treat the area – Apply wood hardener to stop remaining rot and prep for filler. 3️⃣ Fill deep holes – Use two-part epoxy wood filler (not standard putty). Overfill slightly. 4️⃣ Shape & sand – Once cured (24h), sand flush with the original profile. 5️⃣ Prime & paint – Use exterior primer + paint to seal against future moisture. 6️⃣ Add drip edge – Caulk the underside joint to shed water away. ⏱️ ~2 hours + drying 💰 Cost: ~$30–$50

Noticed soft, crumbly wood under your window? Don’t panic—and don’t call the carpenter just yet. Here’s how to repair a rotted window sill in 6 steps: