Mold Removal Cost And Risk In Loudoun County, VA

A typical professional mold job in Loudoun County runs about $1,650 to $6,550 before rebuild, using the Washington-Arlington-Alexandria, DC-VA-MD-WV price level. Below are the 17 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Virginia rules.

2002Median year homes were built

13%Homes built before 1980

22%Homes rented, not owned

$701,000Median home value

144,804Housing units

427,082People

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 Loudoun County were built before 2002, and 13 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 Loudoun County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 20184 has the oldest homes here, a median year of 1938, and ZIP 20105 the newest, 2012.

Typical Prices In Loudoun County

JobSizeNational RangeLoudoun 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 Loudoun 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 Low
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Loudoun County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
20105Loudoun County20125%$807,400
20117Loudoun County198148%$947,700
20129Loudoun County19976%$1,205,800
20132Loudoun County199726%$704,100
20141Loudoun County200120%$676,700
20147Ashburn20023%$679,600
20148Loudoun County20103%$843,800
20152South Riding20062%$708,400
20158Loudoun County199039%$771,200
20164Sterling198147%$526,700
20165Cascades19945%$661,300
20166Loudoun County20054%$576,400
20175Loudoun County199521%$717,700
20176Loudoun County200116%$702,400
20180Loudoun County200026%$629,400
20184Loudoun County193883%Not published
20197Loudoun County199434%$988,900

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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Loudoun County Area

Washington-Arlington-Alexandria, DC-VA-MD-WV