Mold Removal Cost And Risk In Washington County, ME

A typical professional mold job in Washington County runs about $1,350 to $5,500 before rebuild, using the Maine nonmetro price level. Below are the 31 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Maine rules.

1975Median year homes were built

58%Homes built before 1980

22%Homes rented, not owned

$147,100Median home value

21,703Housing units

31,261People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Washington County were built before 1975, and 58 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 22 percent of homes in Washington County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 04631 has the oldest homes here, a median year of 1938, and ZIP 04667 the newest, 1990.

Typical Prices In Washington County

JobSizeNational RangeWashington County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,350 to $5,500
Mold Remediationan attic$2,000 to $7,500$1,850 to $6,850
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$250 to $900
Mold Inspection and Testinga clearance test$300 to $800$250 to $750

Estimate is the national range times 91.6 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 $5,500, that cap falls short by about $500 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Washington 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 Low
Coastal floodingRelatively Moderate
HurricaneRelatively Moderate
Cold waveRelatively Low
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Washington County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
04413Washington County197463%$141,700
04424Washington County198937%$109,800
04454Washington CountyNot published0%Not published
04490Washington County197363%$116,700
04491Washington County195678%$112,500
04492Washington County197952%$68,300
04606Washington County197951%$169,100
04611Washington County197268%$259,500
04619Calais195675%$111,800
04622Washington County197754%$153,200
04623Washington County197853%$159,400
04626Washington County197066%$151,600
04628Washington County198348%$126,400
04630Washington County198050%$180,800
04631Eastport193878%$148,200
04643Washington County198149%$147,300
04648Washington County197657%$109,500
04649Washington County197852%$134,300
04652Washington County195664%$182,500
04654Washington County197560%$164,200
04655Washington County197169%$193,300
04657Washington County197951%$245,500
04658Washington County197156%$213,700
04666Washington County197458%$119,600
04667Washington County199031%$155,900
04668Washington County197853%$116,400
04671Washington County197952%$223,000
04680Washington County197756%$160,900
04686Washington County198444%$101,800
04691Washington County197951%$173,400
04694Washington County197364%$116,600

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.

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