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Best radon detection and reduction specialists near Granby, CO

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Top-Rated Radon detection and reduction specialists in Granby - Updated Nov 2026

Avatar for Affordable Radon Solutions, LLC
Affordable Radon Solutions, LLC
4.7(
374
)
Radon Gas - Abatement

Serving Granby, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"Affordable Radon Services, LLC was great. We had an unusual, BIG radon problem. They fixed it efficiently, cheerfully and competently. They had to come back a couple times to get the number way down. They did that right away, and made it good, with no extra charge. They were on time, and knowledgeable."
 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
Recommended by95%of homeowners
Avatar for Epic Enviro Systems
Epic Enviro Systems
4.8(
18
)
Radon Gas - AbatementRadon Gas - Testing

Serving Granby, CO and surrounding areas

Approved

In business since 2011

Warranties offered

Small jobs welcome

"This was a radon inspection. Epic responded quickly on a Saturday to my quote request and I never heard from the other 3 businesses. Epic was quick to work with us on the schedule and provided a professional report. They also responded to questions after the report was provided. Would hire them again."
Response time2 days
5 neighbors recently requested a quote
Recommended by82%of homeowners
Colorado Radon Solutions, LLC
5.0(
1
)
Radon Gas - AbatementRadon Gas - Testing

Serving Granby, 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 PowerHouse Home Performance
PowerHouse Home Performance
New to Angi
Radon Gas - TestingRadon Gas - Abatement

Serving Granby, CO and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

At PowerHouse Home Performance, our mission is simple: \nto help Colorado & Wyoming families live in homes that are safe, comfortable, and efficient ? without compromise. \n \nWe combine science-backed testing, expert craftsmanship, and honest communication to deliver solutions that last. \n \nWhether you need to lower your energy bills, address radon, fix uneven temperatures for that cold room above the garage, or improve indoor air quality, our team brings the same commitment to integrity, precision, and care. \n \nWhen you choose PowerHouse, you?re choosing a partner who looks at the whole picture ? not just one piece of it.

Removal and Replacement
Removal and Replacement
Removal and Replacement
Removal & Install
Removal & Install

+3

1 neighbors recently requested a quote
Avatar for Custom Radon Mitigation Solutions
Custom Radon Mitigation Solutions
5.0(
41
)
Radon Gas - Abatement

Serving Granby, CO and surrounding areas

In business since 2023

Free estimates

Warranties offered

"Gage helped me work out a creative solution for my small space to keep the radon pipe out of the way, which other contractors couldn't do. He was also incredibly helpful and flexible with his schedule, which I really appreciated when my HOA took a bit of time to get back to me with approval. The finished job looks professional and clean. Jesse, who did most of the installation, worked hard at my house for the entire day, even out in the hot sun. He is clearly very diligent and did an excellent job. I couldn't be more pleased. Additionally, for the complexity of the job at my house, the price I paid was more than fair. As a side note, both Jesse and Gage are super nice guys, and it feels great to work with a local small business rather than one of the larger radon companies who don't seem to care as much about their work. If you live in the Denver Metro or Front Range area, I highly recommend Custom Radon Mitigations Solutions."
Radon System
Radon System
Radon System
Radon System
Radon System

+4

Response time9 hrs
Response rate92%
Recommended by5%of homeowners
Avatar for Axium Inspections & Radon Mitigations
Axium Inspections & Radon Mitigations
4.8(
164
)
Radon Gas - AbatementRadon Gas - Testing

Serving Granby, CO and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"This was the 3rd time I’ve used Axium (specifically Tim Krapfl) for home inspection. Tim is very thorough, knowledgeable, and professional! I highly recommend. Tim did the home inspection, but the services also included sewer scope and radon testing."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+113

Recommended by98%of homeowners
Avatar for SWAT Environmental
SWAT Environmental
4.1(
67
)
Radon Gas - Abatement

Serving Granby, CO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Bought a house and had a Radon Test done. It came back higher than the recommended EPA levels (I trust and believe in the EPA actually). Got a number of estimates and reviewed some companies. I went with SWAT Environmental as they could schedule weekends. I believe his name was Robert, he showed up on time and completed faster than expected. He answered all of my questions and was open and honest about everything. He was respectful of the property interior and exterior. Overall a great experience and I would recommend SWAT if you need Radon Mitigation."
Radon Install
Radon Mitigaiton Install
Radon Mitigaiton Install
Radon Mitigaiton Install Castle Rock
Radon Mitigaiton Install Centennial

+3

Recommended by90%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

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

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

The Granby, 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.