Top Radon Mitigation Companies In Denver For 2027

Colorado has some of the highest radon levels in the country, and the EPA recommends mitigation when levels reach 4 pCi/L. Radon is the leading cause of lung cancer among non-smokers, and testing is now a routine part of Denver home sales.

The companies below test for and mitigate radon across the Denver metro. In Denver, typical mitigation runs about $800 to $1,000.

Denver Radon Mitigation Companies At A Glance

Company	Base	Known For	Best For
5280 Radon Mitigation	Denver (S Huron St)	Mitigation, sump pumps, crawl spaces	Real estate transactions
Absolute Radon Safety	Denver (Tennyson St)	System installation	Northwest Denver homes
Radon Mitigation of the Rockies	Aurora	Testing and mitigation	East metro homes
American Radon	Denver metro	Radon mitigation	Homeowners comparing quotes
Radon Gone Mitigation	Denver metro	Radon mitigation	Straightforward installs

Best Radon Mitigation Companies In Denver

1. 5280 Radon Mitigation: Denver Specialist Since 2014

5280 Radon Mitigation was founded in 2014 and serves the Denver metro and six Colorado counties, installing new systems and fixing existing ones.

2. Absolute Radon Safety: Tennyson Street Installer With Warranties

Absolute Radon Safety installs radon mitigation systems and backs its work with warranties.

3. Radon Mitigation of the Rockies: Aurora-Area Mitigation Company

Radon Mitigation of the Rockies is a well-reviewed Aurora-area company handling radon testing and mitigation.

4. American Radon: Established Denver-Area Radon Company

American Radon has been online for more than a decade and carries strong reviews across the Denver area.

5. Radon Gone Mitigation: Mitigation Specialist For The Metro

Radon Gone Mitigation focuses on radon system installs and is well reviewed among Denver homeowners.

How To Choose A Radon Mitigation Company In Denver

Is the installer NRPP certified?

The National Radon Proficiency Program certifies mitigation professionals. Ask for credentials.

Is a post-mitigation test included?

A follow-up test confirms levels dropped below 4 pCi/L.

Where will the pipe and fan go?

Ask about routing, especially in finished basements.

What is the warranty?

Most good installers guarantee results and cover the fan.

Conclusion

Radon is invisible but easy to fix. Test your home, and if levels are high, get quotes from two of these companies and ask for a post-mitigation test.