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Verified Reviews for Radon Detection And Reduction pros in Williams Bay, WI

*The Angi rating for Radon Detection And Reduction companies in Williams Bay, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Williams Bay, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on September 21, 2025

Find Radon detection and reduction specialists in Williams Bay

Avatar for Lifetime Home Services
Lifetime Home Services
4.9(
110
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williams Bay, WI and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"It went great. I highly recommend them. They were a pleasure to deal with. The person that came out for the estimate answered all of my questions. The estimate was fair. The work was done on schedule and with no problem. At completion, everything was explained to me. I used their electrician which worked out fine. After completion the radon test showed that my level was now undetectable."
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+1

Response time2 days
Response rate100%
4 neighbors recently requested a quote
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Avatar for Radon Gone
Radon Gone
4.9(
70
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williams Bay, WI and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"They did the Job very efficient and neat . very friendly people I would recommend them to anyone who needs radon remediation."
Radon fan
Radon fan
Response time9 hrs
9 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Gardner Environmental Services
Gardner Environmental Services
4.8(
263
)
Radon Gas - Abatement

Serving Williams Bay, WI and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Dave Gardner and crew outstanding. Extremely knowledgeable, identified and fixed my radon problem . Very honest and trustworthy"
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+20

Response time5 hrs
4 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Gardner Services
Gardner Services
4.7(
16
)
Radon Gas - Abatement

Serving Williams Bay, WI and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"This is a high quality mold/fungi/fungus testing company, with excellent customer service and follow-up. The phones were picked up on the first call each time, and arranging for an appointment was very easy. They arrived on time, were efficient, informing, and friendly in their work, and brought commercial equipment to perform the test samples. The follow up phone call and email on the test results was good, and they provided a potential remediation plan for us to follow on the test results. The third party lab utilized by them had easy to understand numbers, graphs, and descriptions of what was tested. We will do business with Gardner Services again in the near future, and will recommend them to others."
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+18

Response time7 hrs
Response rate100%
10 neighbors recently requested a quote
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Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
597
)
Radon Gas - Abatement

Serving Williams Bay, WI and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"They came to do the repair but I never got a good feeling about it.  They charged a lot for one crack."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
31 neighbors recently requested a quote
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Avatar for Wisconsin Dairy Air
Wisconsin Dairy Air
5.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Williams Bay, WI and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"Great - arrived when expected, completed the work and gave options for future work that might be needed.  Super nice with taking the time to listen!  Would absolutely use them again.
"
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

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 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.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The Williams Bay, 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.

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