Top-rated radon gas testers.

Get matched with top radon gas testers in Monticello, MN

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Monticello

Avatar for A1 Radon Services LLC
A1 Radon Services LLC
5.0(
359
)

Serving Monticello, MN and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"We were 100% pleased with the work done by A1 Radon Services. They were able to schedule us quickly, they arrived right on time, and the installation went perfectly. A short time later we tested again for radon and the number had gone from 9 to 1. We highly recommend. them."
radan fan and vent pipe running through attic space
Radon fan in garage rafters
Outdoor radon fan RP145
Outdoor radon mitigation system
outdoor radon mitigation system

+19

Response time7 hrs
5 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Ron Prosch and Associates, Inc.
Ron Prosch and Associates, Inc.
4.8(
52
)

Serving Monticello, MN and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Ron responded very quickly to my inquiry. He inspected my existing radon mitigation system and found all I needed was a new fan and sump pump cover. He did not try to over sell with items I did not need. I would definately recommend him to others. I find it rediculous that the Type of Service and Specific Project is limited to a few pre-selected projects, none of which applied to the work Ron performed which was radon mitigation. Allow the user to fill in their own Service and Project details."
Response time4 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for American Waterworks
American Waterworks
4.8(
133
)

Serving Monticello, MN and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"This job was completed efficiently and professionally. A design specialist came to test and measure every detail for the project. The crew arrived with everything needed for the job. They worked very hard to install Waterguard in the concrete floors inside around the foundation to the sump pump basket. They also installed Geo-lock anchors to support a block wall that was bowed. This company has 36 years in business and provides excellent results and professional customer relations. Call Amer. Wtrwrks for a free estimate. You will not be disappointed. A wise investment of $11,270."
Another Sinking Floor
Dirt Crawlspace in Elk Mound, WI
Concrete stoop had sunk over 6 inches
Foundation Failure Signs
Increased Efficiency of Crawlspace in Elk Mound

+156

Response time3 hrs
593 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Aztec Asbestos Removal LLC
Aztec Asbestos Removal LLC
4.3(
7
)

Serving Monticello, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

Aztec Asbestos Removal LLC offers the removal of asbestos for commercial and residential properties. \n\nWe started in 2011 and have been providing excellent asbestos removal service ever since. We have withheld a rating of A+ through the Better Business Bureau reflecting our strict safety procedures and impeccable work ethic since 2013. We strive to offer excellent customer satisfaction by being very flexible and available, on top of making safety our #1 priority.\n\nWe are licensed in Minnesota and offer professional asbestos air sampling.

6 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Rapid Restoration, LLC
Rapid Restoration, LLC
4.8(
20
)

Serving Monticello, MN and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"It went smooth and thorough and he gave us the information we needed to know. I was wanting to schedule something soon and they were able to come out two days after I inquired their services! Cant beat that. We also got a phone call explaining everything that was found for the air quality test and where to go from there. All their help was very much appreciated."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Response time1 day
16 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Radon Stoppers
Radon Stoppers
5.0(
69
)

Serving Monticello, MN and surrounding areas

In business since 2015

Free estimates

Warranties offered

"Radon Stoppers did a great job installing a radon mitigation system in our home in Minneapolis. It was very straightforward to get an estimate and schedule the installation. Pat was happy to explain how a radon mitigation system works and where it would be installed. They guarantee that the system will reduce the radon to a safe level for the quoted price with no surprise charges, and also provide a 5 year warranty. We are very happy with our new radon mitigation system."
Recommended by100%of homeowners
ADVANCED RADON SERVICES
5.0(
213
)

Serving Monticello, MN and surrounding areas

In business since 2003

Free estimates

Warranties offered

"Walt and his crew did an amazing job mitigating radon from our basement! Radon level went from 4.4 pCi/L to 0.3. Out of 3 bids, he was the only one to come to our house to look at how to route the system. He wasn't in a hurry and explained everything to me in layman's terms. On the day of the install, they arrived promptly and explained what they were going to do. They suggested testing out the sump pump before they sealed up the area and I realized it wasn't working. I purchased a new sump and they even helped me put it in! Wasn't expecting that kind of service. Would highly recommend Advanced Radon Services."
Recommended by98%of homeowners
ENERGY & ENVIRONMENTAL SERVICES INC
5.0(
45
)

Serving Monticello, MN and surrounding areas

In business since 1995

Free estimates

Warranties offered

"Great experience. Robert visited the house, evaluated all potential sources of radon, and provided an estimate for the installation of the mitigation system. He was very thorough and explained the whole process. A week later, his stepson Sy installed the mitigation system. Just like Robert, Sy was very professional and friendly. Last but not least, the mitigation system works great. Before the installation, the radon level was 7.9 pCi/L, after installing the mitigation system, levels dropped to 1.2 pCi/L. <br />"
Recommended by100%of homeowners
Avatar for Midwest Radon Specialists LLC
Midwest Radon Specialists LLC
5.0(
31
)

Serving Monticello, MN and surrounding areas

In business since 2014

Free estimates

Warranties offered

"We shopped around and Midwest Radon Specialists was the only group of five I contacted to actually come out to look at my home first before giving an estimate. I really appreciated that because we have a slightly odd home with an upper level that was added later, and planning a decent route for the mitigation system was a little unique. During the home visit the proposed plan was very well explained to me and I felt good about the interaction. It took us a couple of months to move forward with the project on our end, but that wasn't a problem for them and they got us added to their schedule. During our delay, I purchased a digital radon detector and the readings on that were above 30pci/L the week before the mitigation system was installed, so I was a little concerned with what level the reduction would get us to. The actual install took ~2 1/2hrs and seemed to go very smoothly, and the installers were very professional and answered all the additional questions I had for them. It's been 3 days since the install and the levels are down below 1pci/L now. I'm very happy with the interactions I had with and the job that Midwest Radon Specialists did and would recommended them to anyone else looking for radon mitigation."
Recommended by100%of homeowners
Avatar for Radon Defense Systems LLC
Radon Defense Systems LLC
5.0(
21
)

Serving Monticello, MN and surrounding areas

In business since 2013

Free estimates

Warranties offered

"Rick and crew kept at it after first effort resulted in still-too-high radon levels. This if not uncommon, and Rick added solutions until a good test was achieved, at no additional cost. Would highly recommend."
Recommended by100%of homeowners
...
Showing 1-10 of 97
FAQs for radon gas testing projects in Monticello, MN

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Monticello, MN homeowners’ guide to radon gas testings

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