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Avatar for Mile High Radon Control, LLC
Mile High Radon Control, LLC
5.0(
88
)
Radon Gas - Abatement

Serving Boulder, CO and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Mile High Radon did an excellent job for us! Darren got creative and helped hide the mitigation system almost completely - it looks great. Will be recommending in the future!"
RADON MITIGATION SYSTEM
SUMP PIT DEPRESSURIZATION
SUB SLAB DEPRESSURIZATION
TILE DRAIN RADON SYSTEM
RADON SYSTEM

+2

Response time1 day
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Affordable Radon Solutions, LLC
Affordable Radon Solutions, LLC
4.7(
374
)
Radon Gas - Abatement

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"Recently I had radon mitigation system installed in my house. The job was done by Affordable Radon Services LLC. Very friendly workers Ken and Joe worked on my property. They did excellent job. The following test showed significant decrease at the radon level on the property. I am very happy that I hired this company and recommend for your needs."
 custom fit pipe-garage install
 Blending isn't a problem
 suction point T intersection into crawl space
Garage Attic Install
 close up view of radon mitigation fan

+25

Response time2 days
4 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for #1 Radon, Inc.
#1 Radon, Inc.
4.4(
56
)
Radon Gas - AbatementRadon Gas - Testing

Serving Boulder, CO and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"I recently used #1 Radon to fix my existing radon mitigation system. I called and Jesse Fuller came to look at system same-day. He had it repaired the same week. He was professional and made me feel comfortable with work and costs to replace the existing fan. I highly recommend #1 Radon and Jesse Fuller."
Response time5 hrs
Recommended by100%of homeowners
Avatar for All Colorado Radon Mitigation Inc
All Colorado Radon Mitigation Inc
4.9(
40
)
Radon Gas - TestingRadon Gas - Abatement

Serving Boulder, CO and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"All Colorado Radon Mitigation Inc did an excellent job! The gentlemen that performed the work took extra care to make sure that the routing of the PVC was done correctly and still achieve the Radon level was going to be below the 4 pCi/L level that EPA requires. They did a very good job with putting the vent in the roof correctly and making sure that no leaks would come from their work. The Radon level that I recorded prior to their work was 15-17 pCi/L and now its down .3-.4. So yes they know what they are doing and they do it very well!"
Basic Exterior System Pictures
Basic Exterior System Pictures
Basic Exterior System Pictures
Basic Exterior System Pictures
Additional Photos

+1

Response time6 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Radon Mitigation of the Rockies
Radon Mitigation of the Rockies
4.7(
55
)
Radon Gas - Abatement

Serving Boulder, CO and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Very professional, courteous, and knowledgeable. They didn't oversell me and corrected the issues I was having with persistence and creativity. They got things up and running again with the least amount of work necessary. I highly recommend Rocky Mountain Radon."
18
17
16
15
14

+34

Response time1 day
Recommended by98%of homeowners
Avatar for American Radon, LLC
American Radon, LLC
4.8(
29
)
Radon Gas - Abatement

Serving Boulder, CO and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"John did a great job. Our radon went down way more than I expected, to almost nothing. There were a couple of blips along the way, and they did everything to fix things with no trouble to me at all. I would highly recommend."
Highlands Ranch
Highlands Ranch
Pueblo
Greeley
Painted Pipe

+3

Response time4 hrs
Recommended by100%of homeowners
Avatar for Radon Safety, LLC
Radon Safety, LLC
4.8(
8
)
Radon Gas - Abatement

Serving Boulder, CO and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"HOLLY THE OFFICE MANAGER IS GREAT TO WORK WITH. I HAD RECEIVED AN ESTIMATE FOR RADON MITIGATION BACK IN MARCH AND WHEN I CALLED IN DECEMBER, SHE IMMEDIATELY SAID THE QUOTE WAS STILL GOOD. JASON ADAMS DID THE INSTALL AND DID A GREAT JOB. HE WAS VERY CAREFUL AND DID VERY EXACTING WORK. I WOULD HIGHLY RECOMMEND RADON SAFETY LLC. DAVE MAHAN, LAFAYETTE, CO."
Radon Mitigation Install
Response time1 day
Recommended by100%of homeowners
Avatar for Master Mitigators
Master Mitigators
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Boulder, CO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Master Mitigators works with homeowners, buyers, sellers, real estate agents, builders, and business owners across Denver and the Front Range, where radon exposure remains a recognized concern. Colorado's soil and foundation construction create conditions that require informed assessment and tailored response. Addressing radon isn't only about installation—it's about understanding what's beneath your property and how to respond effectively.\n\nYou'll receive an evaluation that accounts for your foundation type, soil composition, and property layout. From there, the focus shifts to planning a system that fits your space without disrupting daily routines or compromising structural integrity. Every property presents different variables, and your solution should reflect that.\n\nReach out to Master Mitigators to schedule a radon assessment for your home or business.

Project Photos
1 neighbors recently requested a quote
Colorado Radon Solutions, LLC
5.0(
1
)
Radon Gas - AbatementRadon Gas - Testing

Serving Boulder, CO and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

Colorado Radon Solutions, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

Response time11 hrs
Response rate93%
Recommended by100%of homeowners
Avatar for Liberty Home Inspections, LLC
Liberty Home Inspections, LLC
5.0(
1
)
Radon Gas - Testing

Serving Boulder, CO and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Response time40 mins
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Yes, many systems include warranties for performance. Confirm terms with your installer.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

The Boulder, CO homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.