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TRUSTED BY WINDSOR, CO HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon20
    Verified radon detection and reduction services reviews

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

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

Serving Windsor, 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 Northern Colorado Radon, LLC
Northern Colorado Radon, LLC
5.0(
23
)
Radon Gas - AbatementRadon Gas - Testing

Serving Windsor, CO and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Radon mitigation is not listed in the business catagories, rather surprising given Colorado's high levels . Armond of NortherColoradoRadon came to the house to give an estimate, the others gave estimate over phone by google maps. He showed up, charged less, did it well, and the radon went down from 9.97 to under 2. After the heavy rains, for some reason the numbers increased, and i am going to get a stronger fan. I highly reccommend this company. Also , get a decent radon detector that gives digital readings such as AirThings."
Single Color Paint Radon Install
Garage Install
Downspout Gutter
Two Paint Colors
Garage Attic Install

+18

Response time2 hrs
Response rate99%
Recommended by90%of homeowners
Avatar for All Colorado Radon Mitigation Inc
All Colorado Radon Mitigation Inc
4.9(
40
)
Radon Gas - AbatementRadon Gas - Testing

Serving Windsor, CO and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"Called to ask about getting someone to come check on our radon system, which had stop working several months earlier. The person I spoke with, was friendly and very helpful. She was able to answer a few questions over the phone. She was also able to schedule someone to come out within the week. I was impressed that I received both an e-mail and phone appointment confirmation, the day before the technician was suppose to arrive. The technician showed up right on time, was professional and was able to diagnose the problem quickly. We needed a new fan for the system. Less than 30 minutes later, he was done and everything looks great. He left a radon testing kit that we will use in a week to make sure everything is working. Great experience and would definitely use them again in the future if needed."
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 Longs Peak Radon Mitigation, Inc.
Longs Peak Radon Mitigation, Inc.
4.9(
77
)
Radon Gas - Abatement

Serving Windsor, CO and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Jason went above and beyond, installing my system in a non-standard location that resulted in (1) drawing air from the center of the foundation as my radon level was quite high at 27 pCi/l (2) located pipes such that they are barely visible to any common areas inside or outside my home, and (3) located the fan away from common areas outside (so it cannot be heard). He ran the pipe from the mechanical room downstairs, up to the attic, and through the attic out the roof gable, placing the fan up near the roof. Just got results back at 1.4 pCi/l. I couldnt be happier. Jason is also knowledgeable, efficient, friendly and professional. I talked with 2 other contractors who would not do the job as I desired. He cost me a little more, and was worth every penny."
Kitchen Bump Out
2 Story Walkout
Brick Siding
Response time5 hrs
Recommended by100%of homeowners
Avatar for North Point Radon
North Point Radon
5.0(
21
)
Radon Gas - Abatement

Serving Windsor, CO and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"BIG shout out to North Point Radon! We had to re-do some radon mitigation on the house so we could start working on framing in the basement and they came in and did an incredible job. The pressure from the pump (or however you say it) went up from 1.1 to 1.25, so they filled in a bunch of spaces that weren't sealed up properly and cleaned everything up so our contractor can start framing. No big chunks of puffy foam - everything is sealed cleanly and nice and tight now (obvious from the reading on the pressure). Fast, affordable, effective, and we retested the basement and it came at less than 1%. Seriously good people. I would call them if you need any radon stuff (testing, mitigation, etc.) taken care of."
ERV and Mitigation
ERV and Mitigation
ERV and Mitigation
ERV and Mitigation
1920s ERV

+2

4 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Bwise Radon
Bwise Radon
3.5(
3
)
Radon Gas - AbatementRadon Gas - Testing

Serving Windsor, CO and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

With over 10 years of experience in the tree Testing, we are the experts you need to take care of your home or business. We handle everything from Radon Testing to abatement services. We will treat your home as we would treat our own. Give Bwise Radon Testing and Mitigation LLC. a call today, we look forward to working with you!

Outdoor system Using Downspout
Garage Setup
Attic
SF Outdoor Fan
Response time3 days
Recommended by100%of homeowners
Avatar for PowerHouse Home Performance
PowerHouse Home Performance
New to Angi
Radon Gas - TestingRadon Gas - Abatement

Serving Windsor, 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 Lifetime Radon Solutions, Inc.
Lifetime Radon Solutions, Inc.
4.8(
132
)
Radon Gas - AbatementRadon Gas - Testing

Serving Windsor, CO and surrounding areas

In business since 1993

Free estimates

Warranties offered

"Everyone I worked with was professional and answered all my questions. installation looks good. I have an Airthings continuous radon sensor. My radon was averaging 7 before. It is at 1.7 now."
Response time6 hrs
Response rate96%
Recommended by95%of homeowners
Showing 1-10 of 45
Radon Detection and Reduction FAQs, answered by experts

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

Installation typically takes 1-2 days, depending on the system and property layout.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

The Windsor, 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.