Manassas, VA Radon Levels

Q: What is the average radon level in Manassas, VA?

Based on 1 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is Manassas in?

Manassas is in Prince William County, EPA Zone 2.

Q: How much does radon mitigation cost in Manassas?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Manassas radon levels and find certified testing and mitigation professionals to keep your home safe

Manassas, VA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Prince William County, VA

Zip Code 20109

Avg. User Level 7.00 pCi/L

User Tests 1

Manassas in the Washington metro area shows an average radon level of 7.0 pCi/L based on limited testing across multiple zip codes, significantly exceeding the EPA action level of 4.0 pCi/L. Located in Prince William County and surrounding jurisdictions, the community sits within Virginia's Piedmont region where complex geology creates favorable conditions for radon accumulation. Professional radon testing and mitigation should be priorities for all area homeowners given these elevated readings.

7.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Manassas, VA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Manassas, VA Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Need Radon Mitigation or Testing in Manassas?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Prince William County Pros

1-800-299-3578 703-259-8570 (local) Toll-free · Mon–Fri 8am–6pm ET

Manassas, VA Radon Levels

User-submitted radon test readings from homes in the Manassas area.

Radon Level	City	Home Age	Foundation
7 pCi/L	Manassas, VA	21-50 Years	Partial Basement

Have a radon test result for Manassas? Submit your reading to help other homeowners.

Radon FAQ for Manassas, VA

What is the average radon level in Manassas, VA?

Based on 1 user-submitted test, the average radon level in Manassas is 7.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Manassas in?

Manassas and the 20109 zip code are in Prince William County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Manassas?

Radon mitigation in Manassas typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Manassas?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Virginia

Cities in Virginia with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Fredericksburg	7.29 pCi/L	7
King George	7.17 pCi/L	6
Leesburg	9.80 pCi/L	5
Chantilly	9.60 pCi/L	5
Fancy Gap	9.40 pCi/L	5
Williamsburg	5.80 pCi/L	5
Purcellville	10.75 pCi/L	4
Aldie	8.00 pCi/L	4
Front Royal	7.75 pCi/L	4
Bristol	7.50 pCi/L	4

Manassas, VA Radon Levels

Check local Manassas radon levels and find certified testing and mitigation professionals to keep your home safe

Manassas, VA Radon Facts

Manassas, VA Radon Mitigation

Need Radon Mitigation or Testing in Manassas?

Manassas, VA Radon Levels

Radon FAQ for Manassas, VA

Most Active Radon Markets in Virginia

Free Radon Mitigation Quote

Free Radon Mitigation Quote