Mold Removal Cost And Risk In ZIP 99403 WA

A typical professional mold job in ZIP 99403 runs about $1,350 to $5,450 before rebuild. Half the homes here were built before 1976, older than the Asotin County median of 1977.

1976Median year homes were built

56%Homes built before 1980

28%Homes rented, not owned

$283,800Median home value

$994Median gross rent

9,192Housing units

Neighborhood figures for ZIP Code Tabulation Area 99403 from Census ACS 2019 to 2023.

56 percent of homes in 99403 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 28 percent of homes here are rented, against 26 percent across Asotin County, so most households carry an owner's policy on the building.

The top of a typical mold job here, $5,450, is about 1.9 percent of the median home value of $283,800.

Typical Prices In 99403

JobSizeNational Range99403 Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,350 to $5,450
Mold Remediationan attic$2,000 to $7,500$1,800 to $6,850
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$250 to $900
Mold Inspection and Testinga clearance test$300 to $800$250 to $750

Estimate is the national range times 91.2 divided by 100, the price level for Lewiston, ID-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 $5,450, that cap falls short by about $450 at the top of that range. Read the form

Water Hazards FEMA Rates For Asotin County

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

HazardFEMA Risk Rating
Inland floodingRelatively Low
Coastal floodingNot Applicable
HurricaneNot Applicable
Cold waveVery Low
Winter weatherVery Low

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

Washington Rules On Mold

Nearby ZIP Codes In Asotin County

Part of Asotin County, Washington.

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99403, WA Area

Asotin County