Top-rated radon gas testers.

Get matched with top radon gas testers in Stillwater, 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 Stillwater

Avatar for A1 Radon Services LLC
A1 Radon Services LLC
5.0(
350
)

Serving Stillwater, 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
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for All 4 Him Abatement & Construction Services LLC
All 4 Him Abatement & Construction Services LLC
4.9(
21
)

Serving Stillwater, MN and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Working with Sean and his team was a great experience and we are very happy with the finished results! Sean came out and tested multiple areas for aesbestos, we didn’t have any but still chose him because we were nervous about dust and mess. After talking to him about the project we knew he was the right choice and would do a great job. Sean and his team did popcorn ceiling removal, flat finish, and paint. It looks amazing. Our project definitely wasn’t easy, we have multiple areas with high ceilings and an atrium that we wanted well protected so the plants wouldn’t die! Would definitely use All4Him again on a future project, highly recommend."
Additional Photos
Response time5 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for American Waterworks
American Waterworks
4.8(
133
)

Serving Stillwater, MN and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"Four man crew showed up and started with a review of work order and expectations (basement water drainage system)Quickly organized plan of work and promptly Started in a systematic way and accepted assistance from home owner. The crew was efficient and friendly. On the third day an additional crew of two men arrived to install Radon mitigation system. Electrical guy arrived to install outlet on outside of home and helped complete the radon system. Completed job quickly and cleaned up. Appreciated the review of planned work and customized it to our home. The crew leader listened and made appropriate adjustments. Thank you so much for all your hard work."
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
576 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Aztec Asbestos Removal LLC
Aztec Asbestos Removal LLC
4.3(
7
)

Serving Stillwater, 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 Stillwater, 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 Stillwater, 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 Stillwater, MN and surrounding areas

In business since 2003

Free estimates

Warranties offered

"Professional in every aspect. The owner, Walt Fitzmaurice, is very knowledgeable and took the time to explain what would be done and when. Top marks for communication, timeliness and quality of work. Easy, no pressure sale. Walt and his crew did an amazing job mitigating radon from our basement! Very respectful working in the house, and there was nothing for me to clean up after they left. All around a good experience. Walt left a measurement device to assess success of the mitigation. Radon level went from 5.8 pCi/L to < 0.3 pCi/L. Two visits (quote, installation) and it was done. Walt 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, at 09:15 and explained what they were going to do. No electrical work was required. Existing outlet in attic from a 1985 project. The vent pipe runs from a basement store room into the attached garage and to the attic where the fan is located, the roof vent is on the back side of the garage and is not noticeable. You cannot hear any fan noise. The installation was finished by 2:00 p.m. I would highly recommend Advanced Radon Services."
Recommended by98%of homeowners
ENERGY & ENVIRONMENTAL SERVICES INC
5.0(
45
)

Serving Stillwater, 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 A + Home Inspection
A + Home Inspection
5.0(
42
)

Serving Stillwater, MN and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"A+ It went great! Doug was early, and already had the out buildings inspected before I arrived. This left me time to focus on the home, which was the bulk of the inspection time. I really appreciated that, since I was on my lunch, and I am more concerned about the home than the other buildings. Doug was very thorough and explained why he would either flag or not flag an item. He explained what to look for when it comes to settling of a home, which eased my mind. It is also convenient that Doug has his own Radon detector. He set it up two days before the inspection date so we could review the preliminary results together. TEST FOR RADON! The price was very reasonable for something so important. It was high in this house, which is common for homes in MN and WI. I was then able to ask the owner to install a radon mitigation system."
Recommended by100%of homeowners
Avatar for Midwest Radon Specialists LLC
Midwest Radon Specialists LLC
5.0(
31
)

Serving Stillwater, MN and surrounding areas

In business since 2014

Free estimates

Warranties offered

"We worked with two different employees on the system activation. Both were professional and very easy to work with. The work seems to have been done well, and their follow-up testing showed a huge drop in radon level in our basement (from about 5 pCi/L to less than 0.5). The whole experience was hassle-free."
Recommended by100%of homeowners
...
Showing 1-10 of 100
FAQs for radon gas testing projects in Stillwater, 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 Stillwater, MN homeowners’ guide to radon gas testings

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