Mold Removal Cost And Risk In St. Clair County, MI

A typical professional mold job in St. Clair County runs about $1,500 to $6,000 before rebuild, using the Detroit-Warren-Dearborn, MI price level. Below are the 21 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Michigan rules.

1975Median year homes were built

58%Homes built before 1980

20%Homes rented, not owned

$213,900Median home value

72,467Housing units

160,089People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $22.30 an hour, BLS May 2025 wage survey.

Half the homes in St. Clair County were built before 1975, and 58 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 20 percent of homes in St. Clair County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 48039 has the oldest homes here, a median year of 1958, and ZIP 48032 the newest, 1992.

Typical Prices In St. Clair County

JobSizeNational RangeSt. Clair County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,500 to $6,000
Mold Remediationan attic$2,000 to $7,500$2,000 to $7,500
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 $1,000
Mold Inspection and Testinga clearance test$300 to $800$300 to $800

Estimate is the national range times 100.3 divided by 100, the price level for Detroit-Warren-Dearborn, MI, 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 $6,000, that cap falls short by about $1,000 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates St. Clair 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 floodingRelatively Low
HurricaneVery Low
Cold waveRelatively High
Winter weatherRelatively Low

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

ZIP Code Neighborhoods In St. Clair County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
48001St. Clair County197364%$250,000
48002St. Clair County198249%$294,600
48006St. Clair County198546%$225,900
48014St. Clair County198343%$208,400
48022St. Clair County198742%$246,200
48023St. Clair County198444%$236,600
48027St. Clair County199140%$242,800
48028St. Clair County196067%$339,100
48032St. Clair County199233%$239,600
48039St. Clair County195874%$170,800
48040Marysville197854%$185,500
48041St. Clair County198247%$296,200
48049St. Clair County197856%$226,000
48054St. Clair County198148%$277,300
48059St. Clair County197754%$199,200
48060St. Clair County196170%$152,000
48063St. Clair County199236%$297,500
48064St. Clair County197754%$280,400
48074St. Clair County198149%$191,800
48079St. Clair County197951%$276,600
48097St. Clair County197459%$174,800

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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St. Clair County Area

Detroit-Warren-Dearborn, MI