Mold Removal Cost And Risk In Merrimack County, NH

A typical professional mold job in Merrimack County runs about $1,500 to $6,050 before rebuild, using the New Hampshire nonmetro price level. Below are the 28 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

26%Homes rented, not owned

$330,600Median home value

66,080Housing units

155,018People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Merrimack 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 26 percent of homes in Merrimack County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 03231 has the oldest homes here, a median year of 1938, and ZIP 03046 the newest, 1993.

Typical Prices In Merrimack County

JobSizeNational RangeMerrimack 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 none of the water hazards below as high for Merrimack County.

HazardFEMA Risk Rating
Inland floodingRelatively Moderate
Coastal floodingNot Applicable
HurricaneRelatively Moderate
Cold waveRelatively Low
Winter weatherRelatively Moderate

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

ZIP Code Neighborhoods In Merrimack County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
03046Merrimack County199328%$436,500
03106Merrimack County198736%$371,600
03216Merrimack County197951%$332,100
03221Merrimack County196964%$302,400
03224Merrimack County198147%$409,600
03229Merrimack County196965%$441,200
03230Merrimack County197952%$213,000
03231Merrimack County193872%Not published
03233Merrimack County193872%$396,700
03234Merrimack County198540%$298,100
03235Franklin195875%$244,800
03242Merrimack County197366%$317,600
03243Merrimack County197853%$243,300
03255Merrimack County198937%$440,600
03257Merrimack County197951%$469,000
03258Merrimack County198936%$360,300
03260Merrimack County197657%$297,000
03263Merrimack County197555%$270,600
03268Merrimack County198148%$312,900
03273Merrimack County193891%$277,300
03275Merrimack County197362%$309,400
03276Merrimack County197658%$245,500
03278Merrimack County197257%$322,900
03287Merrimack County198840%$373,000
03301Concord196366%$344,300
03303Merrimack County198147%$274,100
03304Merrimack County198441%$443,700
03307Merrimack County199040%$315,700

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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Merrimack County Area

Concord, NH

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