Rapid Radon Relief

5.0(356 reviews on Google)

Radon Contractor listing in Thornton, CO

About Rapid Radon Relief

Rapid Radon Relief is a veteran-owned, locally owned radon mitigation company serving the Denver area from Thornton. It tests, inspects and installs hundreds of mitigation systems a year, using installers certified through the National Radon Proficiency Program, and it is fully insured. Systems come with a 10-year warranty on the fan and a lifetime warranty on the system, and the company guarantees the new system will bring radon well below the EPA guideline of 4 pCi/L. Crawl space encapsulation seals exposed earth with a polyurethane vapor barrier. A technician can also upgrade a passive system to an active one. It works with homeowners and realtors on radon testing and mitigation for home sales, and free estimates are offered. Rated 5 from 356 Google reviews, all of them five stars.

What reviewers mention: knowledgeable staff (104), radon mitigation (100), punctuality (36), personable staff (20), quick installation (18), clear explanations (14), sump pump installation (8), clean install (5), system installation (5), painted exterior pipe (3)

Services and details

  • Installs radon mitigation systems

    Yes
  • Radon testing

    Yes
  • Crawlspace systems

    Yes
  • Real estate transactions

    Yes
  • Warranty or guarantee

    Yes
  • Free estimates

    Yes

No information yet on sub-slab depressurization, new construction, commercial and multifamily, post-mitigation test, repairs existing systems, colorado radon license shown. The website did not say; call and ask.

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Listing compiled from public sources on 2026-11-04. Report a correction or request removal. Back to radon contractors in Thornton.