Mold Removal Cost And Risk In Williams County, OH

A typical professional mold job in Williams County runs about $1,300 to $5,300 before rebuild, using the Ohio nonmetro price level. Below are the 10 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Ohio rules.

1966Median year homes were built

67%Homes built before 1980

24%Homes rented, not owned

$140,000Median home value

16,574Housing units

36,862People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Williams County were built before 1966, and 67 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 24 percent of homes in Williams County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 43501 has the oldest homes here, a median year of 1938, and ZIP 43518 the newest, 1973.

Typical Prices In Williams County

JobSizeNational RangeWilliams County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,300 to $5,300
Mold Remediationan attic$2,000 to $7,500$1,750 to $6,600
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 $700

Estimate is the national range times 88.3 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 $5,300, that cap falls short by about $300 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 Williams County.

HazardFEMA Risk Rating
Inland floodingRelatively Low
Coastal floodingNot Applicable
HurricaneVery Low
Cold waveRelatively Low
Winter weatherRelatively Low

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

ZIP Code Neighborhoods In Williams County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
43501Williams County193878%$125,000
43505Blakeslee195998%$215,900
43506Williams County196868%$154,700
43517Williams County195966%$127,300
43518Williams County197357%$143,700
43531Kunkle1938100%$37,700
43543Williams County196468%$130,100
43554Williams County196460%$147,100
43557Williams County196372%$150,900
43570Williams County196568%$117,300

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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Williams County Area

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