Westminster, CO Radon Mitigation and Testing

Q: What EPA Radon Zone is Westminster in?

Westminster is in Adams County, EPA Zone 1.

Q: How much does radon mitigation cost in Westminster?

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

Adams County

EPA Zone 1

Located in Adams County within the Denver Metro area, Westminster sits on Colorado's Front Range where uranium-bearing granite and sedimentary formations contribute to elevated radon potential. Testing data for zip code 80030 remains limited, making professional radon testing essential for homeowners. The region's mix of newer suburban developments and established neighborhoods means foundation types vary significantly, affecting radon entry patterns.

Westminster, CO Radon Mitigation

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

Westminster, CO Radon Testing

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

Westminster Radon Facts

Key details about the radon risk profile for Westminster and the 80030 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Adams County, CO

Zip Code

80030

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Westminster and the 80030 zip code are located in Adams County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Westminster, CO

What EPA Radon Zone is Westminster in?

Westminster and the 80030 zip code are in Adams County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Westminster?

Radon mitigation in Westminster 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 Westminster?

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 Colorado

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

City	Avg User Radon Level	Submissions
Fairplay	12.00 pCi/L	9
Crested Butte	8.56 pCi/L	9
Denver	6.22 pCi/L	9
Montrose	9.25 pCi/L	8
Gunnison	7.38 pCi/L	8
Buena Vista	12.57 pCi/L	7
Pueblo	10.67 pCi/L	6
Grand Junction	8.17 pCi/L	6
Bayfield	6.00 pCi/L	6
Canon City	10.80 pCi/L	5
Aurora	7.40 pCi/L	5
Windsor	7.00 pCi/L	5
Telluride	6.80 pCi/L	5
Parker	5.40 pCi/L	5
Salida	15.50 pCi/L	4
Johnstown	9.50 pCi/L	4
Granby	9.00 pCi/L	4
Longmont	8.00 pCi/L	4
Edwards	6.75 pCi/L	4
Mancos	6.00 pCi/L	4