Mold Removal Cost And Risk In Hillsborough County, NH

A typical professional mold job in Hillsborough County runs about $1,600 to $6,350 before rebuild, using the Manchester-Nashua, NH price level. Below are the 34 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and New Hampshire rules.

1977Median year homes were built

54%Homes built before 1980

32%Homes rented, not owned

$385,500Median home value

176,753Housing units

424,732People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Hillsborough County were built before 1977, and 54 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 32 percent of homes in Hillsborough County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 03064 has the oldest homes here, a median year of 1955, and ZIP 03033 the newest, 1991.

Typical Prices In Hillsborough County

JobSizeNational RangeHillsborough County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,600 to $6,350
Mold Remediationan attic$2,000 to $7,500$2,100 to $7,900
Mold Inspection and Testinga visual inspection$200 to $600$200 to $650
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 105.7 divided by 100, the price level for Manchester-Nashua, NH, 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 $6,350, that cap falls short by about $1,350 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Hillsborough 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 Moderate
Cold waveRelatively Moderate
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Hillsborough County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
03031Hillsborough County197756%$491,400
03033Hillsborough County199130%$480,100
03043Hillsborough County197853%$379,200
03045Hillsborough County198341%$360,300
03047Hillsborough County198050%$314,500
03048Hillsborough County197756%$275,000
03049Hillsborough County197952%$622,800
03051Hillsborough County198245%$407,100
03052Hillsborough County198638%$443,600
03054Hillsborough County198435%$406,200
03055Hillsborough County198245%$363,500
03057Hillsborough County198248%$478,500
03060Nashua195778%$338,700
03062Nashua198342%$398,100
03063Nashua198148%$371,700
03064Nashua195574%$382,000
03070Hillsborough County198927%$436,300
03071Hillsborough County198538%$317,900
03076Hillsborough County198444%$484,500
03082Hillsborough County197951%$334,300
03084Hillsborough County198342%$362,200
03086Hillsborough County197357%$369,900
03101Manchester196460%$418,400
03102Manchester196761%$309,400
03103Manchester195976%$313,500
03104Manchester196268%$364,200
03109Manchester198445%$350,000
03110Hillsborough County199029%$582,000
03244Hillsborough County197756%$252,900
03281Hillsborough County198829%$363,100
03440Hillsborough County197258%$271,400
03442Hillsborough County197853%$249,700
03449Hillsborough County197260%$423,100
03458Hillsborough County197166%$368,100

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.

Cities And Towns

New Hampshire Rules On Mold

New Hampshire Mold And Insurance Rules

  • If a New Hampshire home policy limits mold, the mold and cleanup limit must be at least $10,000. N.H. Admin. Rules Ins 5000
  • New Hampshire policies cannot exclude liability for mold. A policy may set a mold liability limit of at least $50,000. N.H. Admin. Rules Ins 5000
  • A New Hampshire policy cannot set an unfair short deadline to report a mold claim. N.H. Admin. Rules Ins 5000
  • Licensing. In New Hampshire, anyone paid to do a home mold assessment must hold a national third party mold certification. RSA 310-A:189-b

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Hillsborough County Area

Manchester-Nashua, NH

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