Triangle, VA Radon Mitigation and Testing

Q: What EPA Radon Zone is Triangle in?

Triangle is in Prince William County, EPA Zone 2.

Q: How much does radon mitigation cost in Triangle?

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

Prince William County

EPA Zone 2

Triangle, VA resides 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. Testing is recommended for all homes in the 22172 zip code area.

Triangle, VA Radon Mitigation

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

Triangle, VA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Triangle Radon Facts

Key details about the radon risk profile for Triangle and the 22172 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Prince William County, VA

Zip Code

22172

Predicted Screening Level

2–4 pCi/L (Zone 2)

Triangle and the 22172 zip code are located in Prince William County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Triangle, VA

What EPA Radon Zone is Triangle in?

Triangle and the 22172 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 Triangle?

Radon mitigation in Triangle 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 Triangle?

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 with the most user-submitted radon test data in the state.

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
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
Winchester	7.00 pCi/L	4
Williamsburg	5.75 pCi/L	4
Lovettsville	5.25 pCi/L	4
Woodbridge	4.50 pCi/L	4
Fairfax	9.67 pCi/L	3
Stafford	9.33 pCi/L	3
Louisa	8.33 pCi/L	3
Linden	7.67 pCi/L	3
Warrenton	7.67 pCi/L	3
Burke	5.67 pCi/L	3
Lynchburg	5.33 pCi/L	3