Mold Removal Cost And Risk In ZIP 59421 MT

A typical professional mold job in ZIP 59421 runs about $1,450 to $5,800 before rebuild. Half the homes here were built before 1983, newer than the Cascade County median of 1969.

1983Median year homes were built

46%Homes built before 1980

14%Homes rented, not owned

$337,200Median home value

$1,014Median gross rent

1,439Housing units

Neighborhood figures for ZIP Code Tabulation Area 59421 from Census ACS 2019 to 2023.

46 percent of homes in 59421 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 14 percent of homes here are rented, against 30 percent across Cascade County, so most households carry an owner's policy on the building.

The top of a typical mold job here, $5,800, is about 1.7 percent of the median home value of $337,200.

Typical Prices In 59421

JobSizeNational Range59421 Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,450 to $5,800
Mold Remediationan attic$2,000 to $7,500$1,950 to $7,250
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 $750

Estimate is the national range times 96.8 divided by 100, the price level for Great Falls, MT, 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 $5,800, that cap falls short by about $800 at the top of that range. Read the form

Water Hazards FEMA Rates For Cascade County

FEMA rates Cascade County high for cold wave, winter weather. 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 weatherVery High

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

Montana Rules On Mold

Nearby ZIP Codes In Cascade County

Part of Cascade County, Montana.

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59421, MT Area

Cascade County