Mold Removal Cost And Risk In Lewis County, WA

A typical professional mold job in Lewis County runs about $1,450 to $5,850 before rebuild, using the Washington nonmetro price level. Below are the 21 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Washington rules.

1979Median year homes were built

51%Homes built before 1980

26%Homes rented, not owned

$341,500Median home value

36,037Housing units

83,925People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Lewis County were built before 1979, and 51 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 26 percent of homes in Lewis County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 98539 has the oldest homes here, a median year of 1938, and ZIP 98542 the newest, 2003.

Typical Prices In Lewis County

JobSizeNational RangeLewis 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 none of the water hazards below as high for Lewis County.

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

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

ZIP Code Neighborhoods In Lewis County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
98336Lewis County198146%$244,600
98355Lewis County197765%$412,500
98356Lewis County197263%$281,000
98361Lewis County197951%$265,600
98377Lewis County197852%$425,100
98531Lewis County197657%$285,700
98532Lewis County198347%$381,700
98533Lewis County198347%$352,100
98538Lewis County197461%$398,300
98539Lewis County193882%Not published
98542Lewis County200332%$415,700
98544Lewis CountyNot published100%Not published
98564Lewis County197853%$213,500
98565Napavine198540%$276,000
98570Lewis County198345%$352,000
98572Lewis County195763%$217,600
98582Lewis County194471%Not published
98585Lewis County197260%$376,000
98591Lewis County198546%$405,300
98593Lewis County198346%$338,100
98596Lewis County198445%$364,900

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

Lewis County Area

Centralia, WA