Mold Inspection & Remediation in Spokane, WA

Spokane International Airport averages only about 16.5 inches of precipitation a year under NOAA's 1991–2020 normals, much of it as winter snow and rain from November through January. Summers are dry, so a damp wall in August is a clue to a leak rather than the weather.

Winter is when the water gets in. Snow piled against foundations melts into basements, ice dams push water under shingles, and pipes in exterior walls or crawl spaces can freeze and split. About 68% of Spokane's homes were built before 1980, and about 26% before 1940, according to the Census Bureau, including older houses on the South Hill, in Browne's Addition, and in Garland and Hillyard with full basements, stone or block foundations, and attics that were never well ventilated.

Catching that water within a day or two, as the EPA recommends, keeps a winter leak from becoming a spring mold problem.

We use national figures from Angi and HomeGuide for Spokane. Basement jobs in older homes often include drainage or foundation sealing, priced separately, and attic jobs after ice dams can include roof repair. See the remediation cost guide.

Washington does not license mold work, so for a Spokane job, check the company's contractor registration with L&I using the "Verify a contractor" lookup, and ask for its training, liability insurance, and a written scope. For basement jobs, the scope should say how the water will be kept out afterward. See the Washington page.

A pipe that freezes and bursts in a Spokane cold snap is the kind of sudden loss a homeowners policy is most likely to cover, usually up to a mold limit. Snowmelt seeping through a basement wall, or mold from an attic that stayed damp for years, is commonly treated as gradual and excluded. Rising water needs a flood policy. The Washington Office of the Insurance Commissioner helps with claim questions. See does insurance cover mold.