Mold Removal Cost And Risk In Columbia County, WI

A typical professional mold job in Columbia County runs about $1,450 to $5,850 before rebuild, using the Madison, WI price level. Below are the 13 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Wisconsin rules.

1976Median year homes were built

56%Homes built before 1980

23%Homes rented, not owned

$258,700Median home value

26,826Housing units

58,322People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Columbia County were built before 1976, and 56 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 23 percent of homes in Columbia County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 53928 has the oldest homes here, a median year of 1944, and ZIP 53555 the newest, 1990.

Typical Prices In Columbia County

JobSizeNational RangeColumbia 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 97.3 divided by 100, the price level for Madison, WI, 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 Columbia County.

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

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

ZIP Code Neighborhoods In Columbia County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
53555Columbia County199042%$359,800
53901Columbia County197458%$214,300
53911Columbia County197454%$285,500
53923Columbia County196767%$211,200
53925Columbia County196366%$258,400
53928Doylestown194463%$137,500
53932Columbia County198945%$277,400
53935Friesland194681%$147,200
53954Columbia County198149%$248,500
53955Columbia County197557%$285,100
53956Columbia County196175%$214,100
53960Columbia County197458%$247,200
53969Wyocena196283%$200,000

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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Columbia County Area

Madison, WI