Siding Repair and Rot Replacement in Vancouver, WA

$300 to $1,200 for a small trim or fascia section and $1,000 to $5,000 for a rotted area of siding; rot in the framing costs more. Typical 2026 ranges published for Portland and Vancouver, WA:

• Small trim or fascia section: $300 to $1,200
• Window frame or sill: $400 to $1,500
• Siding, single area including replacement: $1,000 to $5,000
• Major structural rot project: $8,000 to $25,000 plus

Minor work, such as rotted trim, a corner board or a few courses of siding with no sheathing damage, runs $350–$1,200 on another local price page.

Where water sits. In Clark County it most often starts at the bottom course, where siding was installed too close to grade, and in soft sheathing under windows that were never flashed correctly. That makes window flashing the highest-consequence line item on a re-side estimate, and the easiest to leave off. On newer houses, such as many in Ridgefield, the problem is often a single installation defect. See siding replacement if more than one wall is affected.

Because the cause is still there. Epoxy filler troweled over rotted wood looks great for six months and fails by the second wet season, because the underlying fungus is still active and the moisture source hasn't been addressed. A real scope names the moisture issue, such as flashing, caulk, gutters or ventilation, and includes a fix. The hiring guide lists what else the bid should say.

If it was built before 1978, yes. Unsafe removal of old paint, such as pressure washing or sanding, may contaminate the home with lead dust, and dealing with lead hazards requires a lead renovation contractor holding state certification. The state publishes the list of firms that hold RRP certification, so you can check the company yourself. More in siding questions.