Mold Remediation in Seattle, WA
We've worked on mold remediation jobs across Seattle long enough to know what tends to break here, when, and why. Three things you can count on: we show up when we say we will, we quote before we work, and we don't pad the bill.
What's typical for this job
Mold work follows IICRC S520 protocol: contain the area first to prevent spore spread, then remediate. Skipping containment is the #1 mistake unlicensed mold contractors make.
We set up plastic barrier walls around the affected area, run negative air pressure with HEPA-filtered air scrubbers (typically 4-6 air changes per hour), and the crew works in PPE inside the contained area.
Visible mold growth on porous materials (drywall, carpet, padding, fabric) is removed and bagged. Hard surfaces are HEPA-vacuumed and treated with EPA-registered antimicrobials.
After remediation, we run post-remediation verification (PRV) testing — usually third-party — to confirm the affected area returns to baseline.
Notes on Seattle housing stock
Most weeks we run 12–18 calls inside Seattle alone. Different houses, similar fixes — we've seen yours before.
Most of our Seattle mold remediation jobs come from older neighborhoods, where the housing stock just has more failure points.
Recent service example
Property manager call, Seattle-area duplex. Both units had black mold growing on drywall behind a wallpapered bathroom. We pulled the system apart and found slow leak from a shower valve had been wetting the drywall for 18+ months. S520 containment, removed all affected drywall and tile substrate, treated framing with antimicrobial, post-remediation verification testing passed on the same trip — both tenants happy. $1375.
Fair pricing for this work
For mold remediation jobs in the Seattle area:
- Small-area mold remediation (one bathroom or closet): $2,250 – $5,625
- Medium-area remediation (single room): $5,625 – $12,250
- Whole-home or HVAC-system contamination: $18,750 – $50,000
- Post-remediation verification (PRV) test: $440 – $940
Other things we handle locally
- Basement Flooding Cleanup in Seattle
- Sewage Cleanup in Seattle
- Structural Drying in Seattle
- Burst Pipe Cleanup & Restoration in Seattle
- Fire & Smoke Damage Restoration in Seattle