Around here the damage report usually reads the same way: moisture got in, dry rot followed, and carpenter ants moved into the softened wood. Describe what the inspector found — or what you found yourself — and licensed Beaverton contractors will scope the repair.
Carpenter ants and anobiid beetles in this region almost always follow water. They don't eat sound, dry framing; they excavate wood that's already softened by a leak or by ground contact. That's why extermination without fixing the source is a temporary result. Any contractor who proposes repair without asking where the water came from is treating a symptom.
Opening the affected area, cutting out compromised framing or siding back to sound material, sistering or replacing structural members, correcting the flashing or drainage that caused it, then rebuilding and finishing. Sill plates, rim joists, deck ledgers, window trim, and the bottom course of siding are the recurring locations on Beaverton homes.
Rats and mice get into vented crawlspaces through failed vent screens and utility penetrations, then nest in the floor insulation. Repair means exclusion work at every entry point, removal and disposal of contaminated insulation, sanitizing, and re-insulating. Doing the insulation before the exclusion is how homeowners end up paying twice.
A pest inspector or a general contractor identifies the extent; the repair contractor fixes it. Insist on photos of every damaged area before it's closed up, and keep the inspection report — if you're in a real estate transaction, both parties will want documentation that the correction matched the finding.
Describe the project once and we match it with vetted local pros who actually do this work — you choose who to hire, or nobody at all.
Constant winter rain plus shade from mature conifers keeps exterior wood damp for long stretches, which is precisely the condition dry rot fungus needs. That's why the sunny side of a Beaverton house is often fine while the north elevation has failing trim.
The composite hardboard siding used widely in 1970s–90s construction wicks water at the cut bottom edge and around fasteners once the paint film fails. It's the single most common place local contractors find rot, especially where siding sits too close to grade or behind a deck.
Cosmetic trim and siding replacement generally doesn't require a permit, but replacing structural framing — sills, joists, posts — does, through City of Beaverton Community Development or Washington County. A licensed contractor knows where that line falls and pulls it when needed.
Localized trim or siding rot repairs commonly run $600 to $2,500 depending on how far the damage extends once the wall is opened. Structural work at a rim joist, sill plate, or deck ledger typically starts around $2,500 and climbs with access difficulty. Crawlspace rodent cleanup with exclusion and re-insulation most often lands between $3,000 and $8,000. Because the true extent isn't visible until demolition, expect a good bid to include an exploratory allowance rather than a single fixed number.
The pest report flagged rot at the deck ledger and two sill areas. They opened it up, showed me photos of everything, and the final invoice matched the allowance.
Rats had been in the crawlspace for years. They sealed every entry point first, then removed and replaced all the insulation. No noise since.
Carpenter ants along the bottom edge of the hardboard traced back to a downspout dumping against the wall. They repaired the sheathing and rerouted the downspout so that corner stays dry.
Subterranean termites exist in western Oregon but are far less common here than carpenter ants and moisture-driven dry rot. An inspector can identify which you have from the galleries and frass. The repair approach differs, so get the identification before the quote.
Treatment usually goes first so the infestation is handled, then repair follows once the wood is dry. But the water source has to be corrected either way — otherwise both bills come around again in a few years.
Generally no. Homeowners policies exclude gradual deterioration, rot, and pest damage as maintenance issues. A sudden covered event that caused the water — a burst pipe, for example — may be a different story. Read your policy before assuming either way.
Nobody knows precisely until the area is opened. A contractor probes with an awl and moisture meter to estimate, then confirms during demolition. That's why a written allowance and a change-order process matter more here than on most jobs.
Send the inspection report or photos of what you've found. Licensed Beaverton contractors will scope both the cause and the repair.
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