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*The Angi rating for Radon Detection And Reduction companies in Marshall, 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 Marshall, 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 August 27, 2025

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Avatar for Lifetime Home Services
Lifetime Home Services
4.9(
109
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, 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
4 neighbors recently requested a quote
Recommended by98%of homeowners
Request Quote
Avatar for PureTech Home Services LLC
PureTech Home Services LLC
5.0(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, 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 Home Sweet Home Inspections
Home Sweet Home Inspections
5.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, WI and surrounding areas

In business since 2013

Free estimates

"Very informative, easily scheduled same week, personable and pleasant. Gave me some good tips as a first time homeowner for things to keep tabs on. No issues whatsoever."
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Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

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.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

The Marshall, 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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