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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 enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

Yes, many systems include warranties for performance. Confirm terms with your installer.

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.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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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