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 typically costs $600 to $2,400 per project (national average as of 2026). Most straightforward jobs start near $600 per project. Final pricing depends on material quality, project scope, local labor rates, and site conditions. Use our free calculator below for a personalized estimate.
Quality Level
Estimated Total Cost
Standard Quality
National average — enter your ZIP for local prices.
Estimates are approximate and vary by location, project scope, and current market conditions. Contact a local contractor for an accurate quote.
Tell us about your project and we'll send it to contractors near you who do this work.
$510 – $2,040 per project
Rotted section cut out, replaced with primed pine, wood preservative on cut ends, caulked, primed and painted
$600 – $2,400 per project
Rot cut back to sound wood, borate treatment, primed fir replacement back-primed, caulked, two finish coats
$750 – $3,000 per project
Rot cut back, borate and epoxy consolidant on edges, cellular PVC replacement, sill flashing where needed, two coats
| Component | Category | Low | High | Unit |
|---|---|---|---|---|
| Materials | material | $270 | $1,080 | job |
| Labor | labor | $210 | $840 | job |
| Supplies & Other | supplies | $72 | $288 | job |
| Equipment & Disposal | equipment | $48 | $192 | job |
Cut out and replace dry-rotted wood on exterior trim, siding, fascia or a window/door frame (non-structural, localized), treat, prime and paint.
Typical repair dry rot pricing range per project.
Starting price $600 per project. National average as of 2026. This is a directional range. Final pricing depends on scope, materials, access, and local labor rates.
Estimates are approximate and vary by location, project scope, and current market conditions. Contact a local contractor for an accurate quote.
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 thisRepair Dry Rot usually lands between $600 to $2,400 per project. That range reflects current national calculator data after materials, labor, supplies, equipment, and disposal are rolled together. Your real quote will move based on quantity, site conditions, finish level, and contractor availability in your ZIP code.
Cut out and replace dry-rotted wood on exterior trim, siding, fascia or a window/door frame (non-structural, localized), treat, prime and paint.
Material selections can move the budget faster than anything else, with current material allowances landing around $270.01 to $1,080 per project.
Labor complexity is the next major swing factor, with installation or trade time currently averaging $210 to $840 per project.
Smaller consumables still matter, because supplies are contributing about $71.99 to $287.99 per project.
Specialty tools, access equipment, cleanup, and disposal can add another $48 to $192.01 per project.
Scope changes, premium finishes, difficult access, demolition, and permit requirements can push the total toward the high end of the range. Cleaner access, standard finishes, and bundled work often keep the job closer to the low end.
Get multiple itemized bids, ask contractors to separate materials from labor, and confirm what is included before you compare totals. Scheduling during a slower season and bundling adjacent work can also reduce mobilization costs.
Keep specifications tight before work starts. Change orders are one of the fastest ways to blow past the original budget, especially when material lead times or specialty trades are involved.
DIY can make sense when you already own the tools, understand the prep requirements, and can tolerate schedule risk. Hiring a pro is usually the better move when mistakes would affect finish quality, code compliance, waterproofing, structural performance, or warranty coverage.
View local pricing for repair dry rot across 51 states.
Find contractors who list this service and ask for a written quote.
Cost guides for property owners. Contractor ID for the shops who do the work.
Dry-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 thisUse the calculator range of $600 to $2,400 per project as your baseline, then compare that against the time, tool rentals, material waste, and rework risk you would take on by doing the project yourself.
Most repair dry rot jobs start with site review, measurements, and material confirmation. From there the crew usually handles preparation, core installation or repair work, cleanup, and a final walkthrough to confirm the finished scope matches the quote.
Ask each contractor how they handle protection of adjacent finishes, debris removal, and change approvals. Those three points tend to separate a clean project from an expensive headache.