Inspect and Seal Caulking
Check and replace caulking around windows, doors, and exterior penetrations.
DIY Cost
$30
If Ignored
$1.5k
Frequency
Once a year
Difficulty
Easy DIY
Most homeowners can handle this in under an hour with basic tools.
How to do it — step by step
Walk around the exterior of your home and inspect all caulked areas: where window frames meet siding, around door frames, where pipes or wires enter the house, and around AC lines. Press the caulk — if it's cracked, peeling, or spongy, it needs replacement. Remove old caulk with a utility knife or caulk remover. Apply new paintable exterior caulk for a clean seal. Failing caulk allows water infiltration and drafts that increase heating bills by up to 20%.
Recommended tools & supplies
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