Deck repair cost by size of the job
| Size of the repair job | Installed price | Good to know |
|---|---|---|
| Simple: loose boards, nails, small rot or mildew | $100–$750 | A visit to fix a few things |
| Average: several boards, posts or stairs | $800–$3,500 | Several boards, posts or stairs |
| Complex: structural, joists, ledger or major rot | $2,500–$10,000 | Structural work, and the widest range |
These are totals for repair work, with the labor share adjusted for your state's carpentry wages. The guides we read do not agree on prices per board or per square foot, so we price by the size of the job instead. A contractor's site visit will tell you which tier you are in.
What changes the price
Deck size, height and the wood or composite used matter, but the condition of the frame matters most. Replacing surface boards is quick, while rotted joists, posts or a loose ledger board where the deck meets the house are structural and can approach a rebuild. Hidden rot is common, so ask how the contractor handles damage found once boards come up.
Extra costs to expect
| Item | Typical cost | When it applies |
|---|---|---|
| Railing repair or replacement | $500–$4,000 | Loose, broken or non-compliant railings |
| Cleaning and sealing | $300–$1,500 | Protects the repaired wood |
| Pest control | $200–$600 | If insects caused the damage |
Minor repairs usually do not need a permit, but structural work can, so check with your town. If the repair costs close to what a new deck would, ask for a replacement quote too.
Questions to ask before you hire
- Is the frame, ledger and footing sound, or only the surface?
- What will you do if you find more rot once boards come up?
- Does the quote include new fasteners and sealing?
- Is a permit needed for this work?
- Is it close enough to the cost of a new deck to compare quotes?
Methodology and sources
We price repair by job size from the sources, adjust the labor share for your state's carpentry wages, and price railings, sealing and pest control separately. Read how we estimate costs.
- HomeAdvisor: deck repair — average cost, repair types
- Angi: deck repair cost — average cost, railings, labor
- HomeGuide: deck repair cost — repair tiers, railings, sealing
- BLS OEWS May 2025, State (SOC 47-2031, Carpenters) — state labor index, a carpentry proxy
What each source reports
Our estimate does not rely on any single page. This table lists each page we used and the figures it reports, so you can see where the ranges come from.
| Source | What it reports |
|---|---|
| HomeGuide |
|
| HomeAdvisor |
|
| Angi |
|
Common questions about deck repair costs
How much does deck repair cost?
A typical job (average deck repair) comes to about $2,000 nationally, within a range of $800 to $3,500. Use the calculator above to adjust for your state, the options you choose and any extras.
Where do these prices come from?
They come from 3 published cost pages from 3 publishers, last checked Oct 8, 2026. We report what those pages say and do not invent figures; the table above shows each source.
How does my state change the estimate?
The labor part of the price is scaled by the average wage for the relevant trade in your state, using Bureau of Labor Statistics data. Materials and equipment are not adjusted.
Why might a contractor's quote differ from this estimate?
A quote reflects your specific scope, access, local demand and what the contractor includes. Ask for line items rather than a single total so you can compare bids on the same basis.
All 3 sources behind these prices
Every figure in the calculator comes from one or more of these pages, with the number each one supports in the link text.