Black Mold Removal in Bellevue, WA

What happens when you call from Bellevue

The number on this page puts you through to an independent mold remediation company that works in Bellevue. This site is a referral service, not a contractor, so the company you reach handles the visit, the quote and the work. They will likely ask where the dark growth is, how big an area it covers, whether you know of a leak, and whether anyone in the home has asthma. At the visit, a thorough company checks moisture in the surrounding drywall, framing or flooring, tracks down the source, and writes up a scope: how the area will be sealed off, which materials come out, how the rest is cleaned, and how dryness is confirmed before anything is rebuilt.

Washington has no state mold license or certification, according to DOH. Before you sign, confirm the company is registered with Washington L&I as a construction contractor using L&I's Verify a Contractor tool.

What drives the cost

• Size of the affected area. Angi's Seattle cost guide reports most pros charge about $10 to $25 per square foot.
• Location. Angi lists a bathroom at $425 to $825, while wall work runs $825 to $16,550 because so much depends on what's inside the cavity.
• Material removal. Moldy drywall, insulation and carpet are usually cut out and bagged rather than cleaned.
• Repairs afterward. Angi's Seattle figures put drywall repair at $825 to $2,400.

The mold's color plays no part in the price.

Bellevue conditions that feed dark mold

Bellevue sits about 8 miles east of Seattle between Lake Washington and Lake Sammamish, with Mercer Slough south of downtown and much of the city draining through the Kelsey Creek watershed. The city's median home was built around 1981, so plenty of houses have original windows, aging bath fans and framing that has been through four decades of wet winters. Dark growth turns up most often where water lingers: under sinks, around tubs, on north-facing walls and in daylight basements on hillside lots. The city recommends flood insurance even outside mapped floodplains, because standard homeowner policies generally exclude outside water damage, and you can check its FEMA flood maps and elevation certificate list to see whether a property is in the Special Flood Hazard Area.

Before the company arrives

• Stop the water if you can, even temporarily, and photograph the growth and damage.
• Don't sand, scrape or spray the patch; disturbing it spreads spores.
• If ducts run near the area, ask whether to keep the furnace off.
• Clear a path and move belongings out of the room.
• Have any past leak repair invoices handy.