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

Avatar for EJS Roofing LLC
EJS Roofing LLC
4.4(
89
)
Radon Gas - AbatementRadon Gas - Testing

Serving Potosi, 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 Potosi, 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 Potosi, 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

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.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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 Potosi, 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.