Mold Inspection & Remediation in Everett, WA

Everett sits on Port Gardner Bay at the mouth of the Snohomish River, with century-old homes in north Everett and postwar and newer housing to the south. Homeowners can reach an independent local mold company with one free call.

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Everett mold risk

Annual rainfall33.4 in
Homes built before 198048%

Sources: NOAA NCEI 1991–2020 normals, Everett Snohomish County Airport (Paine Field); U.S. Census ACS 2020–2024

Why mold is common in Everett

The NOAA station at Paine Field, on Everett's southwest side, averages about 33 inches of precipitation a year for 1991–2020, but the timing matters more than the total. November brings about 5 inches and December about 4.5, while July and August get less than an inch each. For half the year the ground stays wet, the air is cool and damp, and houses dry slowly.

Winter is mold season here. Warm, moist indoor air from cooking, showers, and drying laundry condenses on cold windows, exterior walls, and closet corners, and mold shows up as black spots behind furniture and on window frames. About 48% of the city's homes were built before 1980, and about 16% before 1940, according to the Census Bureau. Many of the oldest, in the Northwest, Riverside, and Bayside neighborhoods, have little wall insulation and crawl spaces or basements where groundwater collects through the rainy months.

Bathroom and kitchen fans that vent outside and a dehumidifier in the lower level do more to prevent mold in Everett than anything else.

Average monthly rainfall in Everett, inches
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Source: NOAA climate normals

Mold services in Everett

Mold InspectionVisual check, moisture mapping, and a written report.
Mold RemediationContainment, removal, drying, and clearance.
Mold TestingAir and surface samples analyzed by a lab.

What mold work costs in Snohomish County

ServiceTypical range
Mold inspection, national range$300–$1,000
Lab sample, per sample (national)$50–$350
Typical remediation job (national)$1,100–$3,400

We have no Snohomish County price data, so the table shows national ranges from Angi and HomeGuide. Older Everett homes often need ventilation fixes or crawl space vapor barriers along with the cleanup, and those add to the bill. See the remediation cost guide.

Washington mold licensing: what to check

Washington does not license mold remediation, so an Everett homeowner should check the contractor registration instead: any company doing repair work must be registered with L&I, and the "Verify a contractor" tool shows its bond and insurance. Ask for mold training records and a written scope that covers how the moisture source, often condensation or a wet crawl space, will be fixed. See the Washington page.

Will insurance cover it?

Insurers usually treat condensation mold and a chronically damp crawl space as maintenance, so those claims are often denied. A supply line that bursts in a freeze or a roof damaged in a windstorm is more likely to be covered, with a mold limit. Snohomish River flooding needs a separate flood policy. Everett owners can ask the state Insurance Commissioner's office for help with a claim. See does insurance cover mold.

Areas we connect you in

Northwest, Riverside, Bayside, Delta, Lowell, Silver Lake, Cascade View, Valley View, and surrounding neighborhoods of Everett.

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Mold guides for Everett homeowners

Everett mold FAQ

Why does mold grow on my Everett windows and walls every winter?
Cool outdoor air chills windows and poorly insulated walls, and moisture from showers, cooking, and breathing condenses on them. Running bath and kitchen fans that vent outside, opening blinds, and keeping indoor humidity below about 50% usually stops it.
What does mold cleanup cost in Everett?
For Everett we can only point to national data: inspections of about $300 to $1,000 (Angi) and typical jobs of about $1,100 to $3,400 (HomeGuide). Ventilation or crawl space fixes cost extra.
How do I check an Everett mold company?
Look the company up in L&I's "Verify a contractor" tool to confirm its registration, bond, and insurance. Washington has no mold license, so also ask about training and get a written scope.
My Everett apartment has mold. Where do I start?
The free call is for homeowners. Renters should tell the landlord in writing and keep dated photos; Washington law requires landlords to give tenants mold information and keep rentals fit to live in. See the Washington renters section.

Own a home in Everett? Talk to a local pro.

Call (866) 228-5790
Call (866) 228-5790