Mold Removal Cost And Risk In Montgomery County, MD

A typical professional mold job in Montgomery County runs about $1,650 to $6,550 before rebuild, using the Washington-Arlington-Alexandria, DC-VA-MD-WV price level. Below are the 46 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Maryland rules.

1980Median year homes were built

49%Homes built before 1980

35%Homes rented, not owned

$615,200Median home value

405,127Housing units

1,057,586People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $23.26 an hour, BLS May 2025 wage survey.

Half the homes in Montgomery County were built before 1980, and 49 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 35 percent of homes in Montgomery County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 20812 has the oldest homes here, a median year of 1938, and ZIP 20871 the newest, 2009.

Typical Prices In Montgomery County

JobSizeNational RangeMontgomery County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,650 to $6,550
Mold Remediationan attic$2,000 to $7,500$2,200 to $8,150
Mold Inspection and Testinga visual inspection$200 to $600$200 to $650
Mold Inspection and Testingan inspection with samples$300 to $1,000$350 to $1,100
Mold Inspection and Testinga clearance test$300 to $800$350 to $850

Estimate is the national range times 108.9 divided by 100, the price level for Washington-Arlington-Alexandria, DC-VA-MD-WV, 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 $6,550, that cap falls short by about $1,550 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Montgomery County high for inland flooding, 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 High
Coastal floodingVery Low
HurricaneRelatively Moderate
Cold waveRelatively Moderate
Winter weatherVery High

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

ZIP Code Neighborhoods In Montgomery County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
20812Glen Echo193882%$1,128,500
20814Bethesda197754%$976,500
20815Chevy Chase196470%$1,230,700
20816Bethesda195981%$1,166,100
20817Bethesda196866%$1,142,300
20818Cabin John198246%$1,273,300
20832Olney198630%$601,300
20833Montgomery County198050%$762,200
20837Montgomery County198744%$701,000
20838Barnesville197359%$807,100
20839Montgomery County197566%$900,000
20841Montgomery County200316%$771,400
20842Montgomery County196367%$709,300
20850Rockville199632%$687,200
20851Rockville195880%$523,800
20852North Bethesda198442%$646,100
20853Aspen Hill196687%$605,800
20854Potomac197953%$1,105,300
20855Redland198341%$614,900
20860Ashton-Sandy Spring198926%$665,000
20861Ashton-Sandy Spring199722%$956,200
20862Montgomery County197490%$804,200
20866Burtonsville198521%$434,400
20868Burtonsville195684%$564,800
20871Montgomery County20099%$628,800
20872Montgomery County198243%$478,300
20874Darnestown198817%$385,300
20876Germantown199111%$456,500
20877Gaithersburg198539%$462,500
20878Gaithersburg198727%$675,200
20879Montgomery County198525%$433,500
20880Washington Grove195192%$594,200
20882Montgomery County198340%$705,800
20886Montgomery Village198050%$366,400
20889BethesdaNot published0%Not published
20895South Kensington195785%$744,000
20896Garrett Park195285%$994,200
20899Gaithersburg198520%Not published
20901Silver Spring195781%$571,300
20902Wheaton196372%$531,200
20903Hillandale196576%$467,900
20904Colesville198341%$533,500
20905Cloverly198145%$640,400
20906Aspen Hill197755%$440,600
20910Silver Spring196763%$690,900
20912Takoma Park195586%$671,400

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.

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