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*The Angi rating for Radon Detection And Reduction companies in Oconomowoc, 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 Oconomowoc, 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 November 04, 2025

Find Radon detection and reduction specialists in Oconomowoc

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

Serving Oconomowoc, 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
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+1

Response time2 days
4 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Radon Gone
Radon Gone
4.9(
70
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oconomowoc, 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
5 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for PureTech Home Services LLC
PureTech Home Services LLC
5.0(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oconomowoc, WI and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"We hired PureTech to advise us on a real estate inspection that included a radon test. That test came back over the safety threshold. After meeting with Zach C, he advised us to make some repairs in the basement and to schedule a retest. We did and the results speak for themselves; the levels came back well into the safe zone. I couldn't be more pleased with the recommendations made by PureTech and Zach C specifically. Saved us a bundle in what could have been a nightmare, and now the sale of our home can proceed. Thank you PureTech!"
Radon Abatement Fan
Before / After Test
After Mitigation
Pre & Post Test
System Install

+6

Response time3 hrs
Response rate96%
5 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 Oconomowoc, WI and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"I used this company for my furnace/central air cleaning and they were very professional as well as for this job.  Mike arrived on scene and suggested some things to me and got the job done within an hour.  I will use them again in the future.
"
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

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.

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.

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

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.

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

The Oconomowoc, 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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