Top-rated radon gas testers.

Get matched with top radon gas testers in Willmar, 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 Willmar

Avatar for American Waterworks
American Waterworks
4.8(
133
)

Serving Willmar, MN and surrounding areas

Angi Approved

In business since 1989

Free estimates

Warranties offered

"Awesome 🤩 was/is James Nelson, Design Specialist with American Waterworks, out of the Fargo, ND office was absolutely wonderful to work with. (Really this Company has impressed us from the beginning!) always quick to respond and very patient…. There was zero pressure …. no pushy sales tactics at all — just good information, very clear explanations, and genuine care. He took the time to answer questions, explain good options, and made us feel comfortable and valued as people, not just potential customers. From the very beginning, And even now after James has been yet kind and incredibly understanding of our situation. Unfortunately We are not able to move forward with our basement project at this time, and James has showed nothing but grace and respect about that. No doubt that James is a true professional and a rare find these days. We absolutely 💯 Highly, highly recommend James and American Waterworks And Solutions… We thank you!!"
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
368 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Complete Basement Systems
Complete Basement Systems
4.7(
174
)

Serving Willmar, MN and surrounding areas

In business since 1975

Free estimates

Warranties offered

"The installation went well. They responded quickly to me and were very communicative. I just think that it was a bit over priced. I paid it because I had no other option at the time"
Recommended by91%of homeowners
Avatar for SafeBasements of Minnesota Inc
SafeBasements of Minnesota Inc
4.9(
50
)

Serving Willmar, MN and surrounding areas

In business since 1990

Free estimates

Warranties offered

"I researched basement waterproofing solutions and was considering doing it myself. Then I found Safe Basements and read the literature about their product/process. To me, it seemed better than other similar products. I was surprised that they cover my place -- 2 hours into Wisconsin, or 3 hours from Litchfield. Brad came out to inspect the problems in my basement -- horizontal cracking, bowing, and water intrusion. He was able to explain the causes of those problems as well as others that I hadn't noticed. We agreed to pay for anchors to stabilize one wall that was bowing, and install drain tile and a sump pump. I'll be honest, I didn't shop around. I have no idea what other companies are charging for the same services. I normally get 3 or 4 bids or other opinions. I felt comfortable with the amount of research that I'd done, the knowledge Brad seemed to have, and the information about the products that I decided to hire Safe Basements without talking to other companies. I don't regret that decision. The wall anchor/stabilization crew called me before leaving Litchfield. Their ETA was pretty close to the actual time of arrival. When they arrived, we discussed the work being done. They did the work. They cleaned up. They gave me information about the anchor system and what I needed to do to correct the bowing and cracks. Everything was done as expected. The drain tile/sump crew was stuck at a previous job. They called me the day before (Tuesday) my job was expected to start to let me know there would be a delay starting my job. He then called in the middle of the start day (Wednesday) to let me know, they wouldn't be to my house until the next day. I was expecting a call between 7 and 8 on Thursday to let me know they were leaving Litchfield. Instead, I got a call at about 7:15 to let me know they were 15 minutes from my house. When they arrived, we talked about the work to be done, they cocooned my stuff in plastic, and they went to work. I think they worked until about 7 that day. They returned on Friday at about 8:30, having stopped to dump my concrete and dirt and to pick up gravel and concrete. They worked until about 10:30pm on Friday. I appreciated that they finished on Friday even though it was later than I expected. They cleaned up everything thoroughly, and walked me through the details of the sump pump and battery backup systems. Even though they'd driven a long distance, worked two very long days, and it was very late Friday, I didn't feel they rushed through. The job was complete. I think they would have stayed later if I'd had anymore questions. Unfortunately, one of the workers left his very nice tape measure, and I have not been able to get it back to him."
Recommended by96%of homeowners
Avatar for American Waterworks
American Waterworks
4.6(
37
)

Serving Willmar, MN and surrounding areas

In business since 1989

Free estimates

Warranties offered

"They were very good at selling the solution, but there was a big gap on the execution of the project, and took multiple iterations to get everything right, I even had to get into the solutioning with the team myself. It is too bad because the technology seems to work fairly well, and that’s why they are getting 3 stars, but I would not use them again."
Recommended by89%of homeowners
Voss Plumbing and Heating
4.8(
5
)

Serving Willmar, MN and surrounding areas

In business since 1961

Free estimates

Emergency services offered

We are a Plumbing and Heating shop thats been in business for over 50yrs. Providing fast, friendly service. We offer 24hr emergency service. With 8 highly trained service techs we will repair any make or model of furnace and fix your plumbing problems. Voss Plumbing and Heating is also Mn Dept. of Health Cert. for Radon testing and Mitigation. We also do in house water testing. Stop in and check out our plumbing and fireplace showroom.

Recommended by100%of homeowners
Avatar for Environmental Air Solutions, Inc.
Environmental Air Solutions, Inc.
4.0(
4
)

Serving Willmar, MN and surrounding areas

In business since 2008

Free estimates

Emergency services offered

We offer a wide range of dependable services, such as air testing and mold control. With experienced and professional air quality consultants, you can count on us to make the air you breathe healthier and safer.

Recommended by75%of homeowners
Showing 1-10 of 17
FAQs for radon gas testing projects in Willmar, 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 Willmar, MN homeowners’ guide to radon gas testings

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