Cedar Mill Property Repair replaces rotten exterior wood: lap boards, panels, corner trim, fascia and the soffit under your eaves, then seals it and finds the leak behind it. We work in Cedar Mill, Beaverton, Bethany and the streets around them. A Portland-area rot fix typically lands between $500 and $4,000 with materials, going by November 2026 market data . Photos go to .
I'm Slava. I've spent 7 years doing this kind of carpentry with my own hands. Soft wood where a door frame meets the sill is a different repair, covered under rotted door frame repair.
Which outside wood and siding jobs do we take?
| Work | What we do |
|---|---|
| Rotted trim | Corner boards, belly bands, rake boards and casing: scrape out the decay, epoxy a shallow pocket or splice in fresh lumber, then prime |
| Siding boards and panels | Take off the damaged pieces and fit matching new ones |
| Fascia and soffit | Replace the rotten lengths along the roof edge and the boards under the overhang |
| Sealing | Open seams in siding, gaps around pipes, vents and wires, trim joints |
Rotted window sills will get their own page soon. Re-siding an entire house is another scale of work . We try to match the existing material, whether that's painted wood lap, cedar shingles, plywood panel or fiber cement .
Can you swap out only a few boards of siding?
Most of the time. Lap siding comes apart board by board, and I offset the new butt joints so they don't stack in a line. Plywood panel such as T1-11 gets cut back to a stud or a panel seam. Shingles come out singly. With the bad piece gone, I look over the sheathing and building paper, mend any rips, and put in flashing at windows and trim if the builder left it out.
New lumber gets primer on all faces and cut ends before it goes up, then sealed seams and paint. If you'd like the whole side of the house to look even, that's our exterior painting service.
Some old board widths and profiles aren't milled any more . On houses from the 1970s through the 90s, plywood and hardboard panels tend to give out along the bottom first .
Should damaged siding be repaired or replaced?
Fix it when the trouble sits in a few places: close to the ground, below a window, on a corner, behind a downspout, and the sheathing underneath is still firm. If soft wood turns up on several sides, the sheathing is mushy across a wide stretch, or the boards are worn out everywhere, it's time to discuss a full wall or the house .
A whole re-side is priced on another scale. We're set up for the smaller call: three boards, one corner, a single fascia run.
What makes trim, fascia and siding rot here?
Water gets in somewhere, and unless that's fixed the new wood goes soft too. My checklist: cracked caulk at board ends and window edges, flashing over trim that's gone or rusted, no kick-out flashing at the spot where a roofline runs into a wall , boards touching soil or bark mulch, and sprinklers spraying the house.
A lot of Cedar Mill is 1960s and 70s houses sitting under big Douglas firs. The needles clog gutters, rain backs up and pours behind the gutter, and the fascia drinks it. Clean gutters protect that board, which is why we offer gutter cleaning too. Through our long damp months, wood soaked through a small gap stays wet.
What does siding and rot repair cost around Portland?
Below are local market numbers, gathered November 2026. They aren't our own quotes yet.
| Job | Typical | Low to high | What's in it |
|---|---|---|---|
| Rotted trim, fascia or sills | $1,500 | $500-$4,000 | with materials |
| Replacing damaged siding boards | $1,800 | $900-$6,500 | with materials |
| Soffit and fascia boards | $1,800 | $600-$6,000 | with materials |
| Sealing seams and gaps outside | $700 | $300-$1,500 | labour only |
What pushes it up or down: how much wood is bad, what's hiding behind it, the height, and matching an odd profile. Second floors and steep West Slope yards call for longer ladders or staging. Primer and paint take time as well .
Many of these jobs go over $2,000. Above that amount the state wants the deal on paper, signed, along with three notices to the homeowner. The Oregon contractor contract rules page explains each one.
Does siding repair in Oregon require a permit?
Normally no. The state's Building Codes Division exempts fixing or replacing siding that doesn't have to be fire resistant. Portland's residential permit page says the same for one- and two-unit homes, and adds that code rules still apply. So the Portland neighbourhoods we serve follow the city page, and Beaverton plus the county areas follow the state one.
Structure is where that changes. If decay has reached studs or other framing that must come out, the local building department may require a permit, and I'll tell you before opening the wall any further .
Is a pre-1978 house handled differently?
Yes. Oregon guidance presumes lead paint on every house built before 1978 until testing proves there isn't any. Pulling siding gets past 20 square feet quickly.
A big share of our area dates from then. Tract homes went up across Cedar Hills after the war, Cedar Mill filled in mostly a decade later, and much of Beaverton in the same years.
What are the signs of rotting siding or trim?
Take a flat screwdriver and push it into the lowest edge of a few boards, the bottom corners of the window casing, and the fascia at each gutter end. Sound wood pushes back. Decayed wood lets the blade slide in. Also look for paint that keeps flaking in one patch, boards that cup or crack, and dark streaks below a dripping gutter joint.