Mold Removal Cost And Risk In Grundy County, IL

A typical professional mold job in Grundy County runs about $1,550 to $6,200 before rebuild, using the Chicago-Naperville-Elgin, IL-IN price level. Below are the 8 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Illinois rules.

1990Median year homes were built

42%Homes built before 1980

24%Homes rented, not owned

$259,200Median home value

21,324Housing units

52,920People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $29.49 an hour, BLS May 2025 wage survey.

Half the homes in Grundy County were built before 1990, and 42 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 Grundy County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 60437 has the oldest homes here, a median year of 1953, and ZIP 60407 the newest, 1989.

Typical Prices In Grundy County

JobSizeNational RangeGrundy County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,550 to $6,200
Mold Remediationan attic$2,000 to $7,500$2,050 to $7,750
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 $1,050
Mold Inspection and Testinga clearance test$300 to $800$300 to $850

Estimate is the national range times 103.6 divided by 100, the price level for Chicago-Naperville-Elgin, IL-IN, 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 $6,200, that cap falls short by about $1,200 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Grundy 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 Low
Coastal floodingNot Applicable
HurricaneVery Low
Cold waveRelatively High
Winter weatherRelatively Low

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

ZIP Code Neighborhoods In Grundy County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
60407Grundy County198938%$178,200
60416Grundy County198348%$222,900
60424Grundy County197460%$191,600
60437Grundy County195375%$168,800
60444Grundy County197458%$219,800
60450Grundy County198149%$266,600
60474Grundy County196375%$166,200
60479Grundy County197261%$214,400

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.

Illinois Rules On Mold

Illinois Mold And Insurance Rules

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Illinois Department of Insurance

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Area Map

Grundy County Area

Chicago-Naperville-Elgin, IL-IN