Mold Remediation services in Washington
Sometimes the call is genuinely an emergency. Sometimes it's a Monday morning fix. We'll be honest about which one yours is. We're licensed, insured, and direct. No upselling, no door-to-door pitches, no hour-long sales appointments.
Notes on Washington housing stock
Washington has a wide mix of housing — from pre-war brick to last-year new builds. We work on all of it; the diagnostic just takes a different shape.
If you're calling from a property management company, we have separate scheduling and billing for that.
What this service includes
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.
Pricing
Small-area mold remediation (one bathroom or closet) runs $2,250 – $5,625. Medium-area remediation (single room) runs $5,625 – $12,250. Whole-home or HVAC-system contamination runs $18,750 – $50,000. Post-remediation verification (PRV) test runs $440 – $940.
Sample job
Last spring we got a call from a homeowner near the west Washington. Black mold growing on drywall behind a wallpapered bathroom. Diagnosis: slow leak from a shower valve had been wetting the drywall for 18+ months. We S520 containment, removed all affected drywall and tile substrate, treated framing with antimicrobial, post-remediation verification testing passed, ran the test, and were out the door in the same visit. Total: $675 including parts.