Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Williams Bay, WI

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Request Quote
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
7 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
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"
Untitled Gallery 1
Untitled Gallery 1
Untitled Gallery 1
Untitled Gallery 1
Untitled Gallery 1

+20

Response time5 hrs
4 neighbors recently requested a quote
Recommended by90%of homeowners
Request Quote
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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Response time7 hrs
Response rate100%
11 neighbors recently requested a quote
Request Quote
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%
29 neighbors recently requested a quote
Request Quote
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
Request Quote
Showing 1-10 of 13
Radon Detection and Reduction questions, answered by experts

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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.

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

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.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

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.

See all articles