Top-rated radon detection and reduction specialists.

Best radon detection and reduction specialists near Cassville, WI

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Cassville, WI?

Select your specific project to find the pro for you.

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

Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
13
)
Radon Gas - Abatement

Serving Cassville, WI and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Our radon specialist, Tim Milledge, was terrific. Communication was excellent, he arrived on time, was professional, courteous and experienced. He was able to run the pipe line and place the other equipment in a way to be unobtrusive and did nothing to detract from the aesthetics of our property. He explained post procedures and cleaned up after himself, unusual these days with service providers, and completed the installation quickly and efficiently. We would highly recommend SWAT and, in particular Tim."
Response time1 day
Recommended by100%of homeowners
Avatar for EJS Roofing LLC
EJS Roofing LLC
4.4(
89
)
Radon Gas - AbatementRadon Gas - Testing

Serving Cassville, WI and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"The first  contact was answered promptly and an estimate meeting was arranged. A few days later the estimate  and shingle color samples were delivered by mail.  No better estimates came.  In fact, most companies contacted failed to respond at all.  When I accepted the offer, we talked again to schedule the job.  He estimated the job would start on July 16, and it did.
They started early on the first day, worked nearly until dark, and came back to finish the next day.  They were done by mid-afternoon.Apart from the roof being all new, I could hardly tell they had been there.  No mess, no mashed plantings, no shingle fragments or nails lying about.  Still waiting for a rain to test it, but it looks great."
EJS Roofing.
EJS Roofing.
EJS Roofing.
Recommended by88%of homeowners
Avatar for Clay's Property Services, LLC
Clay's Property Services, LLC
5.0(
1
)
Radon Gas - Testing

Serving Cassville, WI and surrounding areas

In business since 2021

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to finish of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality - regardless of how large or small the job is.

Response time10 mins
Recommended by100%of homeowners
Mike's Quality Home Inspection
0.0(
3
)
Radon Gas - Testing

Serving Cassville, WI and surrounding areas

In business since 2011

Free estimates

Warranties offered

With years of experience serving the Dodgeville's surrounding area, Mike's Quality Home Inspection is your solution for all your Inspection needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed! We now accept credit cards. \n \n \n

 damaged gutter can cause water damage and mold
 railing spindles to wide
 bad wiring safety hazard
 hot wire loose
 water damage

+17

Recommended by100%of homeowners
Radon Detection and Reduction FAQs, answered by experts

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.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

The Cassville, WI 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.