Window and Door Inspection Checklist

Windows and doors are your home’s weakest security points and biggest sources of drafts and leaks. This checklist covers the structural, energy, and security issues that actually matter.

For nighttime-specific checks, see Nighttime Home Security Checklist.

1. Security and Locking Mechanisms

[ ] Test all locks for smooth operation
[ ] Ensure deadbolts fully extend into strike plates
[ ] Verify window latches engage completely
[ ] Check sliding doors for security bars or dowels
[ ] Confirm no windows have broken or missing locks

2. Weather Sealing and Drafts

[ ] Inspect weatherstripping for cracks or gaps
[ ] Replace worn door sweeps
[ ] Check for cold or hot air leaks around frames
[ ] Look for light shining through closed doors—indicates poor sealing

3. Glass and Frame Condition

[ ] Inspect for cracks or chips in glass
[ ] Check for fogging—sign of failed double-pane seals
[ ] Look for warping or swelling in wooden frames
[ ] Ensure aluminum/vinyl frames aren’t bent or loose

4. Door and Window Alignment

[ ] Make sure doors close without sticking
[ ] Check hinges for tight screws and no sagging
[ ] Test sliding windows for smooth travel
[ ] Inspect tracks for debris or corrosion

5. Water Damage and Leaks

[ ] Look for water staining around frames
[ ] Check caulking for gaps, cracking, or peeling
[ ] Inspect exterior trim for rot or separation
[ ] Ensure drainage paths around windows are clear

6. Screens and Hardware

[ ] Verify screens fit tightly with no tears
[ ] Inspect handles and knobs for tightness
[ ] Replace missing or rusted screws
[ ] Check hinges, rollers, and tracks for lubrication needs

7. Exterior Inspection

[ ] Check for gaps where pests can enter
[ ] Inspect flashing above windows for damage
[ ] Verify no exposed wood is touching soil
[ ] Ensure doors seal tightly against weather

8. Safety Considerations

[ ] Verify bedroom windows open fully for egress
[ ] Remove obstacles that block emergency exits
[ ] Ensure security bars (if present) have quick-release mechanisms

Windows and doors age faster than homeowners notice. This checklist keeps drafts out, security tight, and moisture damage from sneaking in.