Mold Removal Cost And Risk In Grant County, WA

A typical professional mold job in Grant County runs about $1,450 to $5,850 before rebuild, using the Washington nonmetro price level. Below are the 14 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Washington rules.

1987Median year homes were built

44%Homes built before 1980

34%Homes rented, not owned

$275,700Median home value

39,496Housing units

100,428People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Grant County were built before 1987, and 44 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 34 percent of homes in Grant County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 98832 has the oldest homes here, a median year of 1938, and ZIP 99349 the newest, 1999.

Typical Prices In Grant County

JobSizeNational RangeGrant County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,450 to $5,850
Mold Remediationan attic$2,000 to $7,500$1,950 to $7,300
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 $950
Mold Inspection and Testinga clearance test$300 to $800$300 to $800

Estimate is the national range times 97.4 divided by 100, the price level for the nonmetro part of the state, 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 $5,850, that cap falls short by about $850 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Grant County high for cold wave. Water from these events is where mold claims start, and flood water is a separate policy. FloodSmart says mold damage is not covered under standard NFIP flood policies. FloodSmart

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

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

ZIP Code Neighborhoods In Grant County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
98823Grant County197557%$256,400
98824Grant County196184%$180,200
98832Grant County193866%$259,400
98837Grant County198940%$290,000
98848Grant County199536%$308,800
98851Grant County197360%$240,500
98853Grant CountyNot published0%Not published
98857Grant County197952%$194,400
98860Grant County195587%$184,200
99123Grant County197458%$247,700
99135Grant County193878%$198,000
99321Grant County197579%Not published
99349Grant County199923%$409,000
99357Grant County199233%$307,400

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.

Washington Rules On Mold

Washington Mold And Insurance Rules

All Washington Mold And Insurance Rules lines

Washington Office of the Insurance Commissioner

All Washington Office of the Insurance Commissioner lines

All Washington counties

Guides

Area Map

Grant County Area

Moses Lake, WA