Mold Inspection in Burien, WA

Warning signs to watch for

• A lower floor that smells damp even after the heat has been on for days.
• Wet or stained siding, sill plates or trim on the side that faces the water.
• Rust-colored or dark staining on ceilings under decks and flat roofs.
• Wood floors cupping or carpet pad that stays damp near exterior doors.
• Water came over the bulkhead or across the road during a winter storm.

Shoreline and storm conditions

Burien has 5.5 miles of Puget Sound shoreline along its western edge, about 11 miles from downtown Seattle. FEMA maps set base flood elevations (Zone VE) and flood depths (Zone AO) for properties next to the Sound, and owners can check a property's zone on King County's online flood map. On December 18, 2024, a 12.66-foot high tide combined with strong winds sent waves over waterfront homes and roads at Three Tree Point, and water and debris covered SW 172nd Street. Homeowners and renters policies don't cover flood damage, so documenting what got wet is worth doing early.

Away from the beach, the risks look like the rest of the region: wet months that run from fall into spring, condensation on cold walls and glass, and crawl spaces that never quite dry out.

What changes the price

HomeGuide's 2026 national numbers put most mold inspections at $300 to $650, with large homes and widespread mold reaching about $1,000. Waterfront houses with several levels, tight crawl spaces or many rooms take longer. Lab sampling adds cost, and EPA says it is usually unnecessary when mold can be seen.

What to expect after calling

You'll reach an independent local inspector or remediation company. On the visit, expect a full walk-through, moisture readings at exterior walls and floors, a look under the house and in the attic, and a written report. If you rent an apartment, duplex, triplex or fourplex, Burien's Rental Housing Inspection Program inspects those units every three years; tenants first give the landlord written notice, then may contact city officials if the landlord doesn't respond. Public Health - Seattle & King County does not do mold assessments and tells tenants to report the underlying water problem to local code officials.