How often should you inspect your siding, trim, and exterior caulk?

Skipping it eventually leads to water damage or an expensive repair.

Staying on schedule matters beyond the repair bill: a consistent maintenance record is one of the factors in a home's Roots Home Health Score, and well-kept homes typically sell faster and closer to asking price.

How to do it

Siding, trim, and their caulked joints are the wall's rain jacket. Gaps and cracks let water in behind the cladding, where it rots sheathing and framing out of sight.

1. Walk the exterior and look for cracked, loose, or missing siding and soft or rotten trim.
2. Check the caulk around windows, doors, and where trim meets siding for gaps and failed beads.
3. Look for peeling paint, which exposes wood to moisture, and for staining that hints at a leak above.
4. Re-caulk failed joints with a quality exterior sealant and touch up bare wood with paint.

Alternatives & optional extras

• Pay special attention to the south and west faces, which take the most sun and weather.
• Woodpecker holes, wasp nests, and mud tubes (termites) turn up on this same walk; note them too.

Time: 30 minutes · Typical cost: $8–$20 for exterior caulk

What you'll need

• Exterior-grade caulk

If you skip it

Failed siding and caulk let water reach the sheathing and framing, where it rots the structure unseen until it's a major repair.

Related systems to keep on schedule

• Roof — start with: inspect roof for damage, once a year, ideally in May
• Gutters & downspouts — start with: clean gutters and downspouts, every 6 months
• Chimney / fireplace — start with: schedule chimney sweep and inspection, once a year, ideally in September
• Garage door — start with: test garage door auto-reverse and safety eyes, every 6 months