Most Portland-area deck repairs run $500-$4,000 for new boards and $949-$3,605 for joists, stairs and railings, materials included (market data, November 2026). Rebuilding a few wood steps typically lands near $1,000 . The figure climbs with how much framing has gone soft below the decking, the ledger at the house wall, the stairs, and whatever hides under boards nobody has lifted in years.
If you'd rather have someone look at your deck than do the maths, here's how our deck repair visits work. From here on it's only money: what each kind of fix tends to run, and why one job lands low and another high.
How much does deck repair cost around Portland?
The numbers below are Portland-area market data, gathered in November 2026. Materials are in them. Treat them as a yardstick, not as a price from us.
| Repair | Typical job | Range | Counted |
|---|---|---|---|
| Swapping rotted or split decking | $1,200 | 500 to 4,000 dollars | per job |
| Framing: joists, stairs, railings | $2,251 | 949 to 3,605 dollars | per job |
| Wooden steps and a landing | $1,000 | 400 to 2,500 dollars | per job |
| For scale, an entire new deck, roughly 300 sq ft | $16,000 | 10 to 30 thousand dollars | per deck |
Every line is a per-job figure. Square footage barely predicts a repair bill: a big deck with three bad boards is cheaper to fix than a small one whose ledger has rotted. The steps line comes from hours multiplied by Portland labour rates instead of a published survey, so it's the roughest of the four. National cost sites quote other numbers mostly because they blend whole regions with different wages and different weather.
Much of Bethany's housing dates from the nineties and the early part of the next decade, so its decks have had a quarter century or more of rain. At that age it's common for treads and single boards to give out while the frame below is still fine.
How much to replace a few deck boards?
For board work, the market band runs from $500 up to $4,000 including materials, and a typical job comes to about $1,200 (November 2026) . One band has to stretch from a couple of split boards by the back door to most of the walking surface.
A handful of things push a board job up or down. Count and length come first. Then whether the joist under each bad board is still solid. Then matching: replacement stock may not share the old boards' width or thickness on an older deck . Hidden clips come out slower than face screws, and composite in a colour nobody makes anymore is a puzzle of its own .
Two boards still mean a drive, setup, cuts and sweeping up, so a tiny job has a floor whatever the board count. Our data has no fair per-board labour figure. For how hourly rates and minimum visits are set, see the handyman hourly cost guide .
What do joist, post and ledger repairs cost?
Structural fixes fall inside a market band of $949 to $3,605, typically $2,251, materials counted (November 2026). Which end you land on depends on what failed. Going roughly up in price: sistering a fresh joist against one soft one, swapping a post that rotted at soil level or inside a concrete collar, replacing a beam, and last the ledger, the board that ties the deck to the house .
Ask which piece of a deck costs most to fix and the ledger is usually it. Without working flashing, rain gets in behind it season after season. Once someone spots the damage, rot may have reached the house rim joist plus the siding or trim overhead, and now the bill covers a wall as well as a deck. Our wood rot and siding repair service covers that side.
Shade adds to it. Lots of Cedar Mill homes were built in the sixties and seventies beneath tall firs, so the decks stay wet and the board gaps fill with needles sitting right on top of the joists. Wood that never gets a chance to dry is the wood you end up paying to replace.
How much is it to fix deck stairs or a loose railing?
Wooden steps and landings come in between $400 and $2,500, materials in, typically about $1,000 (market estimate, November 2026). New treads are the inexpensive bit. Stringers, the notched boards holding up the whole stair, cost more, and they rot first where their bottoms sit on bare dirt .
Railing work sits in the framing band from the section above. When a rail post rocks under your hand, the trouble is often the bolted joint down at the rim joist rather than the post itself, so one wobbly rail can be a quick fix or a bigger one .
Height can bring paperwork. Within Portland city limits, an outside stairway climbing more than 30 inches above grade needs a permit whether it's new or a replacement. And if the home predates 1978, scraping or sanding old paint on the rails triggers Oregon's lead rules, covered further down.
On West Slope's sloping lots a raised deck often stands well above the yard, so the stair down is long, steep and fully exposed. That stair is usually the first piece to need work.
Is fixing an old deck cheaper than replacing it?
Usually, provided the structure underneath is sound. Here's the same November 2026 market data lined up against a typical new deck. This is simple division on market figures, not a quote:
| Job | Typical figure | Portion of a typical new deck |
|---|---|---|
| Board replacement | $1,200 | roughly 7-8 % |
| Joists, stairs and railings | $2,251 | roughly 14 % |
| A whole new deck, ~300 sq ft | $16,000 | all of it |
With a firm ledger, firm beams and mostly firm joists, a repair is a small fraction of starting over. With a failing frame, fresh boards on tired joists means paying twice. Resurfacing, new decking laid on the existing frame, falls between the two and only pays off when that frame holds up under a careful inspection .
Starting over costs anywhere from $10,000 up to $30,000, materials in, for a deck around that size, typically $16,000 (market data, November 2026) . Sizes and per-foot numbers are in our guide to what a new deck costs.
Do Oregon deck repairs need a permit, and what does that add?
Mostly no, which helps the budget. The 2026 Oregon Residential Specialty Code, at R105.2.2, says ordinary repairs need neither an application nor notice to the building official, so long as the work uses like materials or ones permitted for new construction. Note the carve-out: removing or cutting into a structural beam or anything load-bearing, or changing a required means of egress, falls outside that.
The second test is height. Item 10 of R105.2 frees a deck from permit if no part of its walking surface is over 30 inches above the grade within 3 feet of it horizontally; local ordinances can still add rules. The City of Portland wants a permit once a deck, or an outdoor stairway, rises past 30 inches, and its zoning rules apply regardless. In unincorporated Washington County, a grade-level deck needs no building permit, though the county wants setbacks checked with Current Planning. For a Beaverton address, call the city building division.
What that means for price: swapping boards or sistering a joist usually adds nothing. A replacement beam, a high stair or rebuilding a raised deck from scratch may bring drawings, fees and days waiting for inspection. Have each bidder list permit, drawings and fees separately .
What costs show up once the boards come up?
Hidden rot is the common one. A sound quote states up front what an extra joist or post will cost if it's found, as a per-piece price or a set allowance .
Damage in the house wall is the costly one. Market figures for wood rot repair go from $500 to $4,000 (typical $1,500), and for siding repair from $900 to $6,500 (typical $1,800), both including materials (November 2026) .
Older paint can change the job. For homes built before 1978, Oregon's lead-safe rule for renovators applies once the work disturbs 20 sq ft or more of exterior paint, while less than that counts as minor repair and maintenance. Disturbing lead-based paint isn't something we take on, and our list of work we skip explains why.
Fresh boards will stand out next to weathered grey ones. Market data puts staining and sealing at $550 to $1,250 a deck with materials, typically $850 (November 2026), and that's what blends the colour later; we offer it as deck and fence staining . The torn-out boards and offcuts also need a plan .
How do you compare two deck repair quotes?
First check that both priced the same work: the same boards by count or square footage, the same joists or posts, the stairs, the railing, and a look at the ledger.
Next, look for the lines that keep a number honest: a per-piece price for added rot, which boards and fasteners, permit and drawings if needed, debris, and any stain or sealer. Oregon wants construction agreements above $2,000 in writing, and a framing repair in the upper part of its band passes that mark, as does much of the board range. What belongs in that written agreement is in our page on Oregon contract requirements .