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Exterior

Replace Caulk Around Exterior Windows

MODERATE60 minExteriorPart of Spring Maintenance

Why It Matters

Cracked window caulk is the most common entry point for water into your walls, causing hidden rot and mold damage.

Quick Guide

  1. 1

    Gather your tools and materials

    You'll need: Caulk gun, Caulk removal tool, Putty knife. Materials required: Exterior silicone caulk.

  2. 2

    Perform the replace caulk around exterior windows

    Remove old, cracked caulk around exterior window frames and apply fresh exterior-grade sealant. Safety note: Use ladder safely for upper-story windows.

  3. 3

    Verify and clean up

    Check that the work was completed correctly and clean up your workspace. If upper-story windows requiring tall ladders, consider calling a professional.

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Tools & Materials

Tools

  • Caulk gun
  • Caulk removal tool
  • Putty knife

Materials

  • Exterior silicone caulk