Skip to content
Top-Rated PNW Remodelers

Remodel Answers · Exterior & Weatherproofing · Siding & Exterior Paint

How do I know if I have wood rot in my siding or trim?

Short answer

Take a screwdriver and press firmly (not hard) against suspect wood - mainly the bottom edge of trim, corner boards, and any spot with peeling paint. Sound wood resists; rotten wood dents or crumbles. In the PNW, rot almost always starts at horizontal surfaces or trim-to-siding joints where water sits.

DK
General Manager · Licensed WA Contractor · 20+ years
(425) 600-7735

The screwdriver test

This is the exact test we run on assessments. Any wood that gives under moderate pressure is compromised. It'll spread - rot is a fungus and it moves. A dented spot the size of a quarter today is a fist-sized problem in a year.

Common failure spots

Bottom of window trim, window sills, corner boards where paint has peeled, deck ledger boards, any trim below a leaking gutter, and cedar siding at the ground line (called splash rot). Also look at the fascia behind the gutter - this is the #1 hidden rot spot in the PNW.

Repair vs. replace

Rot smaller than 6 inches can be dug out and treated with epoxy consolidant (Abatron, LiquidWood) - a legitimate permanent fix. Anything larger, replace the board. Both are remodel scope; we handle both routinely.

What we see on Free Onsite Consultations

71%of homes assessed

Roughly 71% of homes older than 8 years show one or more failed caulk joints letting water into wall assemblies.

Caught early on assessment: $220 - $750 · Left until failure: $1,200 - $8,500

Based on real experience across the greater PNW, exterior & weatherproofing issues like this are among the ones homeowners most often miss until they become expensive. Our Free Onsite Consultation catches them early - while they're still a maintenance item, not a repair.

How the Free Onsite Consultation works

Where this work lives

Whole-Home & Interior Remodeling

Multi-room remodels, additions, ADUs, and full interior refreshes with one crew and one timeline.

See the full home remodel page

Services we'd bring to this job

Related questions

Call nowFree estimate