Black Mold Removal in SeaTac, WA

What happens when you call

You'll describe what you're seeing, where it is and roughly how big it looks, and you'll be connected with an independent local company that handles mold work in the SeaTac area. That company sets up a visit on its own schedule. On site, expect it to:

• Look for the moisture source with a meter and, in some cases, a thermal camera.
• Check how far the growth reaches behind drywall, under flooring or into a crawl space.
• Explain what can be cleaned in place and what has to be removed.
• Give you a written scope and price.

Lab testing isn't required to remove visible growth. EPA says sampling is usually unnecessary when you can see the mold, and there are no federal limits to measure against.

What raises or lowers the cost

Angi's Seattle cost guide reports an average job of $1,988, with most between $1,008 and $2,967, and labor at $75 to $120 an hour. The price climbs when growth is hidden in walls, when an HVAC system is involved ($2,475 to $8,275 in that guide), or when a lot of drywall and flooring has to be replaced. Small bathroom jobs sit near $425 to $825. Color has no effect on the price.

Local conditions in SeaTac

SeaTac sits on a plateau about 12 miles south of Seattle, around the airport, with the Duwamish and Green River valleys to the east and Puget Sound to the west. Angle Lake and Bow Lake are in the city, and Miller Creek and Des Moines Creek drain the plateau. Dark mold here usually comes from the same things as across the region: window condensation, bathrooms without good venting, roof leaks, and damp crawl spaces in older homes.

Renters should contact the landlord first, in writing. The city's tenant resources page sends mold and indoor air questions to King County's indoor air specialists, and SeaTac Code Compliance investigates rental housing violations and substandard housing once a tenant has tried the Residential Landlord-Tenant Act process. Building permits for rebuilds come from the SeaTac Building Services Division.

Before the company arrives

• Don't clean, bleach or paint the area, so the extent is visible.
• Take photos and note when you first saw the growth.
• Clear access to the attic hatch, crawl space and under sinks.
• Look the company up on L&I's Verify a Contractor tool.