RP
TestingWater Treatment
Certified RMPFree Estimates
Radon Pros in Colorado
112 contractorsEPA zone context: Most of Colorado's Front Range corridor is EPA Zone 1 — the highest risk classification. Colorado has one of the highest radon testing rates in the country.
AG
A. G. Wassenaar, Inc.
5.0 (1 Google reviews)
Certified Professional
Licensed Provider: Rachel A. Peterson
Full Service•Englewood, CO
MitigationTesting
Certified RMS/RMP
AI
Axium Inspections
4.8 (196 Google reviews)
Certified Professional
Licensed Provider: Robert Orr
Full Service•Englewood, CO
MitigationTestingCrawlspaceNew ConstructionCommercial+2
Certified RMP/RMS
Axium Inspections is a dedicated radon services company serving Englewood, CO. Established in 2007. Services include radon testing, radon measurement, radon mitigation system installation, mitigation system design. Works with slab foundations, crawlspaces. Methods include sub-slab depressurization, sub-membrane depressurization, heat recovery ventilation, passive radon systems. Holds Certified Radon Measurement Professional and Certified Radon Mitigation Specialist certifications. Rated 4.8/5 on Google based on 196 reviews. Offers real estate transaction testing, rush/priority scheduling.
RH
Radon Home Measurement & Mitigation
4.6 (38 Google reviews)
Certified Professional
Licensed Provider: Dr. Leo Moorman
Full Service•Fort Collins, CO
MitigationTestingNew ConstructionCommercialWater Treatment+1
Certified RMS/RMPFree Estimates
Radon Home Measurement & Mitigation is a dedicated radon services company serving Fort Collins, CO. Established in 1999. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Works with slab foundations. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 4.6/5 on Google based on 38 reviews. Offers free estimates, real estate transaction testing.
FP
Front Porch Inspections
4.9 (336 Google reviews)
Certified Professional
Licensed Provider: Jedaiah Kaessner
Testing Specialist•Fort Collins, CO
TestingNew ConstructionCommercial
Certified RMP
CP
Certified Property Inspections, LLC.
Certified Professional
Licensed Provider: Steve A Conway
Fort Collins, CO
TestingNew Construction
Certified RMS/RMPFree Estimates
RI
Reveal360 Inspection Services, LLC
5.0 (574 Google reviews)
Certified Professional
Licensed Provider: Todd Gourley
Fort Collins, CO
Commercial
Certified RMP
MH
MAR Home Inspections LLC
Certified Professional
Licensed Provider: Mayra D Navarro Rodriguez
Fountain, CO
Testing
Certified RMPFree Estimates
EH
TestingCrawlspaceNew Construction
Certified RMP
TE
The E-Quest Corporation
Certified Professional
Licensed Provider: Howard E. Hallman, Jr.
Full Service•Frisco, CO
MitigationTestingCommercial
Certified RMP
HI
Hoplite Inspection Services
5.0 (4 Google reviews)
Certified Professional
Licensed Provider: Mike A Giles
Testing Specialist•Fruita, CO
Testing
Certified RMP
MR
Miracle Rock Property Inspections, LLC
Certified Professional
Licensed Provider: Russell L Baker
Glade Park, CO
TestingCrawlspaceCommercial
Certified RMP
AR
American Radon Mitigation, Inc.
5.0 (91 Google reviews)
Certified Professional
Licensed Provider: Jesse Green
Full Service•Golden, CO
MitigationTestingDiagnosticPost-Test
Certified RMS/RMP
American Radon Mitigation, Inc. is a dedicated radon services company serving Golden, CO. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Works with basements, slab foundations. Methods include heat recovery ventilation, passive radon systems. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 5.0/5 on Google based on 91 reviews. Offers rush/priority scheduling.
RR
Rapid Response
4.9 (149 Google reviews)
Certified Professional
Licensed Provider: Joshua K Moore
Full Service•Grand Junction, CO
MitigationTestingCrawlspaceCommercial
Certified RMS/RMP
Rapid Response is a contractor offering radon-related services serving Grand Junction, CO. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Works with crawlspaces. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 4.9/5 on Google based on 149 reviews.
SR
Stanton Radon
4.5 (4 Google reviews)
Certified Professional
Licensed Provider: Stephen Gustav Geuder
Full Service•Grand Junction, CO
MitigationTestingCrawlspaceCommercialVapor Barrier
Certified RMP/RMSLifetime WarrantyLicensed & Insured
Stanton Radon is a dedicated radon services company serving Grand Junction, CO. Established in 2010. Services include radon testing, radon measurement, radon mitigation system installation, mitigation system design. Works with crawlspaces. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional and Certified Radon Mitigation Specialist certifications. Rated 4.5/5 on Google based on 4 reviews. Offers licensed and insured. Provides a 99-year warranty on mitigation systems.
Data provided by Google Maps
State Info
Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.
Popular Cities for Radon Mitigation in Colorado
Radon mitigation in Colorado Springs, Colorado13 local contractors listedRadon mitigation in Denver, Colorado9 local contractors listedRadon mitigation in Aurora, Colorado8 local contractors listedRadon mitigation in Lakewood, Colorado6 local contractors listedRadon mitigation in Fort Collins, Colorado5 local contractors listedRadon mitigation in Englewood, Colorado4 local contractors listedRadon mitigation in Littleton, Colorado4 local contractors listedRadon mitigation in Longmont, Colorado4 local contractors listedRadon mitigation in Castle Rock, Colorado3 local contractors listedRadon mitigation in Grand Junction, Colorado3 local contractors listedRadon mitigation in Parker, Colorado3 local contractors listedRadon mitigation in Arvada, Colorado2 local contractors listedRadon mitigation in Avon, Colorado2 local contractors listedRadon mitigation in Broomfield, Colorado2 local contractors listedRadon mitigation in Centennial, Colorado2 local contractors listedRadon mitigation in Glenwood Springs, Colorado2 local contractors listedRadon mitigation in Golden, Colorado2 local contractors listedRadon mitigation in Highlands Ranch, Colorado2 local contractors listedRadon mitigation in Leadville, Colorado2 local contractors listedRadon mitigation in Loveland, Colorado2 local contractors listedRadon mitigation in Steamboat Springs, Colorado2 local contractors listedRadon mitigation in Wheat Ridge, Colorado2 local contractors listedRadon mitigation in Bellvue, Colorado1 local contractors listedRadon mitigation in Berthoud, Colorado1 local contractors listed
FAQ: Radon Mitigation in Colorado
Why is radon so high in Colorado?
Colorado sits on uranium-rich granitic rock. The high altitude means lower atmospheric pressure, which draws more radon from the soil. Cold winters keep homes sealed tight, trapping radon inside.
Is radon testing required when buying a home in Colorado?
Not legally required, but radon testing is extremely common in Front Range real estate transactions. Most buyers' agents recommend it.
Should I test my Denver-area home?
Yes. The Denver metro is in EPA Zone 1. Individual homes vary widely — some test below 2.0 pCi/L while others exceed 20.0. The only way to know is to test.
How much does radon mitigation cost in Colorado?
Most homeowners in Colorado see mitigation quotes in the low-thousands, but the final cost depends on foundation type, fan location, and pipe routing complexity. A cost calculator can help you benchmark estimates before requesting bids.
Do I need radon testing in Colorado before hiring a contractor?
Yes. A valid short-term or long-term test is the fastest way to confirm if mitigation is needed and to scope the right system design.
What radon level is dangerous in Colorado?
EPA recommends action at 4.0 pCi/L, and many homeowners choose to reduce levels even below that threshold. Most of Colorado's Front Range corridor is EPA Zone 1 — the highest risk classification. Colorado has one of the highest radon testing rates in the country. ZIP-level lookup tools are useful for local context, but home testing is still required.
State Resources for Colorado
Radon mitigation cost in Colorado
Estimate likely project pricing by foundation type and system complexity.
Radon testing guide for Colorado homes
Learn when and how to test, plus how to interpret pCi/L results.
Radon levels and EPA zones in Colorado
See how state-level risk varies and what zone maps can and cannot tell you.
ZIP-level radon risk in Colorado
Check projected local risk by ZIP code before you request quotes.