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Best radon detection and reduction specialists near La Salle, CO

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

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

Serving La Salle, 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 La Salle, CO and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Aarmond with NoCo Radon was a pleasure to work with. He gave us a good quote, was fast to resopnd and did the work in less than a day! Would highly recommend checking them out if you need radon services!"
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 La Salle, 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 La Salle, 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 La Salle, 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 Radon Mitigation of the Rockies
Radon Mitigation of the Rockies
4.7(
55
)
Radon Gas - Abatement

Serving La Salle, CO and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"I couldn't be more pleased with the radon mitigation service John provided. The estimate was accurate-no surprises. He was prompt, efficient and quick- it took just over 2 hours and that's including answering all my questions (and I had a lot of questions!). John's customer service was excellent and the results have so far exceeded my expectations. I am very glad I chose RMR."
18
17
16
15
14

+34

Response time1 day
Recommended by98%of homeowners
Avatar for Bwise Radon
Bwise Radon
3.5(
3
)
Radon Gas - AbatementRadon Gas - Testing

Serving La Salle, 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 La Salle, 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 La Salle, CO and surrounding areas

In business since 1993

Free estimates

Warranties offered

"We couldnâ t be happier with Lifetime Radon Solutions! From our first contact , we received an estimate and follow up for next day testing, then the mitigation was done in one visit the following day. Excellent work and best of all our retest showed the radon number down to .05 We are very happy with this fine company!"
Response time6 hrs
Response rate96%
Recommended by95%of homeowners
Avatar for Custom Radon Mitigation Solutions
Custom Radon Mitigation Solutions
5.0(
41
)
Radon Gas - Abatement

Serving La Salle, CO and surrounding areas

In business since 2023

Free estimates

Warranties offered

"Custom Radon was fantastic! Gage got off to a great start by showing up early. He answered all of my questions and seemed very knowledgeable in the field of radon mitigation. His workmanship looks great and very well done. I would recommend Custom Radon to anyone who needs mitigation work!"
Radon System
Radon System
Radon System
Radon System
Radon System

+4

Response time9 hrs
Response rate92%
Recommended by5%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

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.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The La Salle, 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.