Basic
$534 – $2,135 per project
Rotted section cut out, replaced with primed pine, wood preservative on cut ends, caulked, primed and painted

Cut out and replace dry-rotted wood on exterior trim, siding, fascia or a window/door frame (non-structural, localized), treat, prime and paint.
Repair Dry Rot in Washington, District of Columbia typically costs $628 to $2,512 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Washington are 5.0% higher than the national average for repair dry rot.
National average: $600 – $2,400 per project
$534 – $2,135 per project
Rotted section cut out, replaced with primed pine, wood preservative on cut ends, caulked, primed and painted
$628 – $2,512 per project
Rot cut back to sound wood, borate treatment, primed fir replacement back-primed, caulked, two finish coats
$785 – $3,140 per project
Rot cut back, borate and epoxy consolidant on edges, cellular PVC replacement, sill flashing where needed, two coats
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $284 – $1,134 | job |
| Labor | labor | $218 – $874 | job |
| Supplies & Other | supplies | $76 – $302 | job |
| Equipment & Disposal | equipment | $50 – $202 | job |
Close-up of dry-rotted wood at a painted door frame corner
Photo: David Schott from Redmond, Washington, USA · CC BY 2.0 · Source
Find a pro to do thisDry-rotted wood board with cracked cubical decay and a tape measure
Photo: Mätes II. · CC BY-SA 3.0 · Source
Find a pro to do thisConnect with local repair dry rot contractors in Washington for personalized quotes based on your specific project.