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Top-Rated Radon detection and reduction specialists in Janesville - Updated Nov 2026

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

Serving Janesville, 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%
6 neighbors recently requested a quote
Avatar for Gardner Environmental Services
Gardner Environmental Services
4.8(
265
)
Radon Gas - Abatement

Serving Janesville, WI and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Dave Gardner set us up with an appointment in only two days for installation of a radon mitigation system. Daveâ  s son, Jordan, and his team were very professional, courteous, friendly, honest, and informative in going over their â  game planâ  for our installation system. Our radon level went from 8.9 pre-mitigation, to .4 post-mitigation when we had the test done one week later. Jordan informed us about what he was doing during the installation. We have already referred Gardner Environmental Services to family and friends who also need radon mitigation systems."
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+20

Response time5 hrs
16 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Property Services & Inspections, LLC
Property Services & Inspections, LLC
5.0(
2
)
Radon Gas - Testing

Serving Janesville, WI and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

Property Services & Inspections, LLC is Wisconsin's trusted source for professional home inspection and environmental testing services. We help homeowners, buyers, sellers, and real estate professionals make informed decisions with thorough, unbiased inspections and accurate reporting.\n\nOur services include complete home inspections, indoor air quality testing, mold testing and radon gas testing. We use industry-standard methods and advanced equipment to identify potential issues affecting your properties safety, health, and value.\n\nAt Property Services & Inspections, LLC, we are committed to honesty, attention to detail, and exceptional customer service. Whether you're purchasing a new home, preparing to sell, or addressing concerns about air quality, mold, or radon, we provide the information and solutions you need for peace of mind.\n\nProudly serving southeastern Wisconsin and surrounding communities with reliable inspections and environmental services you can trust.

AI image of Chris
Roof Inspection
Late 2025 HI
5 neighbors recently requested a quote
Avatar for PureTech Home Services LLC
PureTech Home Services LLC
5.0(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Janesville, WI and surrounding areas

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 time5 hrs
Response rate94%
Avatar for Radman Radon Testing
Radman Radon Testing
5.0(
7
)
Radon Gas - Abatement

Serving Janesville, WI and surrounding areas

In business since 2020

Free estimates

Warranties offered

"RADMAN did an outstanding job installing a radon mitigation system in my home. His crew knows what they are doing and the results speak for themselves. Within hours after starting up the system my Radon level went from 20 to less than 1 Picocuurie per liter."
Response time1 day
Recommended by100%of homeowners
Radon Detection and Reduction FAQs, answered by experts

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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.

Abatement includes sealing entry points and venting with systems that reduce radon levels below recommended EPA limits. It is handled by certified professionals.

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 Janesville, 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.