Mold Removal Cost And Risk In Coos County, NH

A typical professional mold job in Coos County runs about $1,500 to $6,050 before rebuild, using the New Hampshire nonmetro price level. Below are the 14 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and New Hampshire rules.

1969Median year homes were built

64%Homes built before 1980

26%Homes rented, not owned

$169,600Median home value

20,589Housing units

31,386People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Coos County were built before 1969, and 64 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 26 percent of homes in Coos County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 03570 has the oldest homes here, a median year of 1938, and ZIP 03583 the newest, 1991.

Typical Prices In Coos County

JobSizeNational RangeCoos County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,500 to $6,050
Mold Remediationan attic$2,000 to $7,500$2,000 to $7,550
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 100.5 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 $6,050, that cap falls short by about $1,050 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Coos County high for 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
HurricaneRelatively Low
Cold waveRelatively Moderate
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Coos County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
03570Coos County193890%$113,500
03575Coos County19899%Not published
03576Coos County198148%$187,400
03581Coos County197172%$155,700
03582Coos County196273%$117,000
03583Coos County199137%$308,600
03584Coos County193873%$197,200
03588Coos County197853%$233,600
03590Coos County197854%$169,600
03592Coos County198442%$253,400
03593Coos County196174%$300,000
03595Coos County197655%$229,100
03597Coos County198244%Not published
03598Coos County197359%$204,600

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.

New Hampshire Rules On Mold

New Hampshire Mold And Insurance Rules

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Coos County Area

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