Mold Removal Cost And Risk In Whatcom County, WA

A typical professional mold job in Whatcom County runs about $1,550 to $6,200 before rebuild, using the Bellingham, WA price level. Below are the 16 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Washington rules.

1988Median year homes were built

40%Homes built before 1980

36%Homes rented, not owned

$536,100Median home value

101,928Housing units

228,432People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $28.71 an hour, BLS May 2025 wage survey.

Half the homes in Whatcom County were built before 1988, and 40 percent went up before 1980. Older plumbing, roofs and window seals are where slow leaks start, and slow leaks are the mold most home policies leave out. About 36 percent of homes in Whatcom County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 98220 has the oldest homes here, a median year of 1971, and ZIP 98276 the newest, 2002.

Typical Prices In Whatcom County

JobSizeNational RangeWhatcom County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,550 to $6,200
Mold Remediationan attic$2,000 to $7,500$2,050 to $7,750
Mold Inspection and Testinga visual inspection$200 to $600$200 to $600
Mold Inspection and Testingan inspection with samples$300 to $1,000$300 to $1,050
Mold Inspection and Testinga clearance test$300 to $800$300 to $850

Estimate is the national range times 103.3 divided by 100, the price level for Bellingham, WA, rounded to $50. National ranges from Remediational cost guide, price level from BEA Regional Price Parities 2024.

The standard limited fungi endorsement caps mold at $5,000. Against a typical job here of up to $6,200, that cap falls short by about $1,200 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates none of the water hazards below as high for Whatcom County.

HazardFEMA Risk Rating
Inland floodingRelatively Moderate
Coastal floodingRelatively Moderate
HurricaneNot Applicable
Cold waveRelatively Moderate
Winter weatherRelatively Moderate

Source FEMA National Risk Index, December 2025, county level.

ZIP Code Neighborhoods In Whatcom County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
98220Whatcom County197153%$460,900
98225Bellingham197558%$588,800
98226Whatcom County199526%$568,400
98229Whatcom County198643%$564,700
98230Whatcom County199334%$467,900
98240Whatcom County198734%$566,400
98244Whatcom County199142%$431,900
98247Whatcom County198541%$514,400
98248Whatcom County199235%$550,300
98262Whatcom County197854%$529,000
98264Whatcom County199136%$538,100
98266Whatcom County198544%$358,300
98276Nooksack200230%$484,500
98281Point Roberts197951%$460,500
98283Whatcom County198147%$309,400
98295Whatcom County198341%$408,000

ZIP areas are Census ZIP Code Tabulation Areas, placed in the county that holds most of their land, per the Census 2020 ZIP relationship files.

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Whatcom County Area

Bellingham, WA