Louisville, CO Radon Mitigation and Testing

Q: What EPA Radon Zone is Louisville in?

Louisville is in Boulder County, EPA Zone 1.

Q: How much does radon mitigation cost in Louisville?

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

Boulder County

EPA Zone 1

Situated in Boulder County along the Front Range foothills, Louisville sits on uranium-bearing formations that create high radon potential throughout the region. While specific local testing data is limited, the area's geology and elevation make radon testing essential for all residents. The community's mix of historic homes and newer developments in zip code 80027 should all be tested regardless of construction era.

Louisville, CO Radon Mitigation

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

Louisville, CO Radon Testing

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

Louisville Radon Facts

Key details about the radon risk profile for Louisville and the 80027 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Boulder County, CO

Zip Code

80027

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Louisville and the 80027 zip code are located in Boulder 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 Louisville, CO

What EPA Radon Zone is Louisville in?

Louisville and the 80027 zip code are in Boulder 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 Louisville?

Radon mitigation in Louisville 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 Louisville?

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