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The Milwaukee Radon Mitigation Specialists

Wisconsin Radon is one of the most trusted and longest serving Radon Mitigation contractors in Milwaukee, proudly serving the Greater Milwaukee and South Eastern Wisconsin area for over 10 yrs.

We provide expert radon mitigation and vapor intrusion services at affordable pricing. We offering both residential and commercial services in the greater Milwaukee, Waukesha, Ozaukee, Washington, Dodge, Jefferson, Racine, Kenosha, Sheboygan and Fond Du Lac areas. Our services have been awarded an A+ with the BBB.

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Fully Certified.
Residential/Commercial.
Guaranteed Results.

Financing Available!

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Radon Testing

We provide short term (48hr) testing with state of the art continuous radon monitors. Our quick on-site reports give you the information you need when you need it.

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2021 Super Service Award

What Is Radon?

Radon is the number one cause of lung cancer among non-smokers. It is an inert, colorless, odorless gas, one in a chain of natural by-products of uranium decay.

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Our ProcessTestingSealingDiagnosticSuctionVenting
milwaukee radon mitigation

Step-By-Step Radon Mitigation Guide

Our custom radon mitigation services are effective and will ensure a safe home for you and your family. Scroll through the tabs to learn about how our service works.

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Testing

A short-term radon test is conducted by Wisconsin Radon & Environmental, Homeowner, or a Home Inspector. Tests are typically conducted with Electronic, Continuous Radon Monitors. These devices are left in the basement for 2 days (Minimum) and log the radon levels over that period. If test results are above 4 pCi/L, Radon Mitigation is recommended.

Wisconsin Radon & Environmental also offers Advanced Radon Hot-Spot Locating. Deploying Multiple testing units in different areas of the home to better determine radon mitigation approach, potentially eliminating unnecessary cost . This can be advantageous if there are multiple radon-entrance locations: Crawl-Space, Sump-Basin, and Slab-On Grade.

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Sealing

Radon entrance points are sealed. Primary Radon Entrance points are: The Sump Basin, Major Cracks, and Crawl-Spaces. If existing sump pump is a “Pedestal Style” Sump-Pump, it will need to be replaced with a new “Submersible Style” Sump Pump. This is to ensure a safe seal on the sump basin.

The Sump Basin can be sealed with a simple silicone sealant or can be “Mechanically Sealed” with gasket and bolts/screws for a more secure and professional look.

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Diagnostic

Radon Mitigation is all about sub-slab air movement or “Pressure Field Extension”. The more of the sub-slab we can depressurize, the more effective the radon mitigation system will be. Advanced Diagnostics are done to appropriately size radon fan and determine suction-pipe location(s) for proper Radon Mitigation System Design. Diagnostics can be done with a Pitot-Tube and a Vacuum for advanced design or with the desired radon fan itself. This is particularly important when there is no drain-tile on older homes and we are moving air through the soil. The tighter the soil, the bigger the radon fan.

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Suction

After the slab is sealed and the appropriate fan and piping is chosen, the Radon Fan is wired up and turned on. This begins the Radon Collection/Suction process.

The Radon Fan is the only part of the Radon Mitigation System with moving parts and the most important part of the system.

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milwaukee radon mitigation

Venting

Radon Exhaust needs to be vented to the exterior of the home. The exhaust point needs to be 2’ above or 10’ away from any window or entrance to the home. Venting can be done on the exterior or through an attached garage. PVC is recommended but “Matching” Gutter-Downspout is acceptable.

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Hear What Our Customers Have To Say About Us

Wisconsin Radon & Environmental, LLCExcellentWisconsin Radon & Environmental, LLC5.0★★★★★ Based on 173 reviews fromSee all reviews review us onJEFF MINERJEFF MINER ★★★★★ We first had Jerome put a mitigation system in our home a few years ago and last week we hired him to put one in at our mom’s home after high levels of radon was detected there. He is very easy to contact, his work is impeccable and his prices are fair. We would highly recommend his services.Response from the ownerAwesome to work with you again Jeff! Mile MilojevicMile Milojevic ★★★★★ Jerome is awesome. Efficient and knowledgeable. I am happy I can now have peace of mind that my kid will no longer be exposed to higher levels of radon. Thanks again Jerome.Response from the ownerThanks Mile! Great to work with you on this one. Kathy MKathy M ★★★★★ Very knowledgeable, and I'm so glad I got it done. He had good advice on placement of the pipes. Radon levels are now next to nothing.Response from the ownerThanks Kathy! Jeff WickJeff Wick ★★★★★ Jerome was fantastic! After 3 other companies were not sure how to handle our Radan venting, Jerome came over and was confident his solution would work! We went from a 21 exposure to a 1.4 below the government suggested number of 4….Response from the ownerThanks Jeff! That was a fun one! Thomas LaurieThomas Laurie ★★★★★ Service was great overall. Jerome installed our system and was very friendly and willing to provide detailed descriptions of the services that were performed and others that will be needed to optimize the radon mitigation systemResponse from the ownerThanks Thomas, great to work with you! Rosalie BarringtonRosalie Barrington ★★★★★ I can't say enough great things about Jerome and WI Radon & Environ.! The, care, clear explainations, options and high quality of work leaves me as a very happy customer! I wasn't thrilled that my new home failed its radon testing, but I am grateful that they were there to take care of all the details and get my home fixed up. Thanks guys!!!Response from the ownerThanks Rosalie! Really appreciate the opportunity. Nathan MillerNathan Miller ★★★★★ Jerome was fast, efficient, friendly, and cleaned up when he was done. I wish I could hire him for more projects! Home ownership would be easy if everyone was like him.Response from the ownerThanks Nathan!Greatly appreciate the kind words. Adam WissmuellerAdam Wissmueller ★★★★★ Jerome was quick and efficient. The price was very competitive for a radon mitigation system, sump pump and battery back up. Would definitely recommend Wisconsin Radon & Environmental to family and friends.Response from the ownerThanks Adam! Great to help you out with the radon system and backup sump pump installation. S CS C ★★★★★ Provide excellent service and follow up throughout the whole process. Highly recommend.Response from the ownerThanks again! Rick ConnorsRick Connors ★★★★★ Jerome was fantastic to work with, was in and out within about 3 hours. Communication was top notch and prices were very fair. Would recommend to anyone.Response from the ownerThanks Ricky! Glad to finally take care of this for you and the crew. BrandonBrandon ★★★★★ Knowledgeable, professional, trustworthyResponse from the ownerThanks Brandon! Great to work with you. Loretta UdzielaLoretta Udziela ★★★★★ It was a pleasure to have met Jerome Ocallaghan who installed the Radon equipment for my house. He was friendly, professional and knowledgeable. My house feels better especially the downstairs level. I highly recommend Wisconsin Radon & Environmental and I gave it a 5 star rating. Thank you Jerome.Response from the ownerHi Loretta, it was great to work with you as well!We’ll presume that the one star rating was just a slip of the keyboard, ha ha! Would you mind changing that for us when you get a second? Samantha TruchanSamantha Truchan ★★★★★ Highly recommend them for radon mitigation!! Jerome was professional, timely, and knowledgeable. A great company to work with and we felt their pricing was really fair. We had gotten quotes from a few other companies and Wisconsin Radon had them beat for the same work. Very easy to get a quote and schedule an installation appointment. The line by line quote was super detailed and helpful. We will be hiring them again in the future to replace our sump pump once it gets to the end of its life!Response from the ownerThanks Samantha! Glad we could save you a few dollars on this one while providing an awesome customer experience. Frank GayleFrank Gayle ★★★★★ Jerome provided great service. He was very knowledgeable, courteous, and efficient. The installation went smoothly and he did a thorough cleanup after the job was completed. I highly recommend Jerome.Response from the ownerThanks Frank! Brian MiarsBrian Miars ★★★★★ Wisconsin Radon & Environmental is the best in the business! Jerome was super helpful answering all my questions prior to moving forward. My house had few options for routing the plumbing and I was stressed out about it. However, all worked out great and I couldn’t be happier with the install. Jerome was professional, punctual, tidy, and very respectful of our property. I highly recommend Wisconsin Radon & Environmental.Response from the ownerThanks Brian! Great to work with you on this one, where there’s a will there’s a way! Kris FaberKris Faber ★★★★★ Jerome was extremely knowledgeable and took the time to understand my needs and concerns.He is very thorough and customer oriented.Highly recommend Wisconsin Radon & Environmental.Response from the ownerThanks Kris! We love helping out, particularly on those complicated projects. Nick MNick M ★★★★★ Delayed review as the batteries in our radon monitor finally need to be changed. Jerome completed the work back in winter 2022. We were extremely impressed with Jerome and his work. We wanted to route the radon pipe from the basement up through an unused closet to the roof, as we didn't like the aesthetic of the pipe running up along the outside of the house. He was able to accommodate that and did an excellent job! Our radon levels in the basement were ~3.5 before install. Jerome's post install testing showed ~0.3, equivalent to outside air which is about 0.4. Since install, our radon monitor has been running with a long term average of 0.27 over the past 2 years (picture below). Highly recommend!Response from the ownerThanks Nick! That was a FUN one! Steve GrossSteve Gross ★★★★★ We can’t praise Jerome enough!From the initial visit and inspection to the service, Jerome's kindness, explanation of services/equipment, timely service, and customer service, is 2nd to NONE!Response from the ownerThanks Steve, you two were awesome to work with! Sherry KellySherry Kelly ★★★★★ As a new home owner; I was very concerned about my high Radon levels. Called Wisconsin Radon & received an efficient install. Now, I have peace of mind knowing this issue has been addressed. I would highly recommend Wisconsin Radon to everyone!Response from the ownerThanks Sherry! Great to work with you on your new home. Dragana RaskovicDragana Raskovic ★★★★★ Experienced and quick install.Response from the ownerThanks Dragana! Linda RomeroLinda Romero ★★★★★ I am very happy with my radon abatement system. I have always worried about the radon seeping into the lower lever of my home. Wisconsin Radon has put those worries to rest. The installation was easy, quick, and clean. Their personnel were pleasant and easy to work with. No pressure.Response from the ownerThanks Linda. You were a lot of fun to work with too! Becky NiedoBecky Niedo ★★★★★ Thank you coming to my rescue for an odd smell in home at end of your day. Just incredible customer service and so appreciative!Response from the ownerNo problem Becky! Happy to put this sniffer to work. Danielle JemisonDanielle Jemison ★★★★★ Jerome with Wisconsin Radon was excellent! Quick responses, fast service scheduling, and overall very knowledgeable and helpful in recommending the best solution to remove the radon from our home. I would recommend for anyone looking for radon mitigation!Response from the ownerThanks for taking the time to leave a few kind words Danielle. Best of luck with the new home! Marija MadunicMarija Madunic ★★★★★ Response from the ownerThanks Marija!That was a fun one. Sea SquadSea Squad ★★★★★ Jerome has now done two houses for us. When we decided to move a few months ago and the house tested positive for radon, we immediately knew who to call. Fast, professional, exceeds expectations and takes pride in his work.Response from the ownerAwesome to work with you guys again. What a fun house to work on! John KrehnoviJohn Krehnovi ★★★★★ He was very personable and attentive to any questions. I liked that he came to our house to provide the quote and he was the one doing the work. Everything went so smoothly and the final product looks great. It's been about a month and the radon readings are now basically zero. They were 8-11 before the work.Response from the ownerThanks John! Glad we could get that radon down to fresh-air levels! Paul PolewskiPaul Polewski ★★★★★ My customer wanted a radon test to feel comfortable they were safe with their home before they moved in. I called Wisconsin Radon and they took care of everything from testing to implementing a system. They were very professional and timely. Will recommend to anyone. Thanks!Response from the ownerThanks Paul! It’s always fun to work with one of the best home and basement remodeling crews at Homes by Newcastle. What great work! Kim BlundonEichmanKim BlundonEichman ★★★★★ Jerome was very professional and patient with our questions. helped us with sump pump and radon system and made things very clear and provided solution information to issues we were having with drainage. Above and beyond what we expected with the install of Radon migration system.Absolutely would recommend to reach Wisconsin Radon for service.Response from the ownerThanks Kim!Happy to use our wealth of knowledge to help with radon, sump pump and water issues. Thanks! Monica StevensMonica Stevens ★★★★★ Jerome is professional, friendly, and extremely knowledgeable. He communicated clearly throughout the quoting and radon mitigation process and performed excellent work. Highly recommended!Response from the ownerThanks Monica! Peter SommerfeldPeter Sommerfeld ★★★★★ Working with Wisconsin Radon was all time! Jerome was professional, courteous and did great work. The install was seamless and looks great. Great price and advice as well.Response from the ownerThanks Peter! Kelly RehbeckKelly Rehbeck ★★★★★ We had excellent service with Wisconsin Radon & Environmental, LLC. Jerome was able to fit us in the same day and repair our PVC pipe that was cut off by another company doing basement repair work. Plus he gave us additional advice that needed to be done that the basement company did not advise us on.Response from the ownerThanks Kelly, Happy to help out when we can! Eric SpilmanEric Spilman ★★★★★ Great service and friendly. Highly recommend.Response from the ownerThanks Eric!Great to work with you and your wife. Jim SchaeferJim Schaefer ★★★★★ Wisconsin Radon and Jerome were great. Quick to respond, fast to set up service. He clearly explained things to me, was honest, quick to deliver service and cleaned up after himself and his work. Fantastic!Response from the ownerThanks Jim! Glad we could take of your hands and give you a little piece of mind. James YawnJames Yawn ★★★★★ Fair pricing and expedient work. System performs exactly as we were told and the fan outside is quiet. Overall very pleased with our experience with WREResponse from the ownerThanks James!It was great to work with you and your Family. Manuel OyervidesManuel Oyervides ★★★★★ If you are thinking of installing a mitigation system, we recommend choosing Wisconsin Radon and Environmental. Jerome is great. Very professional, knowledgeable and willing to take the time to answer all your questions. Unexpectedly the water alarm on our system went haywire and Jerome came and took care of it. He's not just there for the installation. He is there if questions or problems arise after the installation. That's service!Response from the ownerThanks again guys. Great to work with you! Dave MenardDave Menard ★★★★★ Jerome is awesome. He was early, did the whole job, said payment could wait on the job being totally done (waited on electrician to finish). Job was very well done. I'd go back to him in a heart beat.Response from the ownerYou’re the best. Thanks again! Drew FeldmannDrew Feldmann ★★★★★ Jerome did an excellent job from start to finish. He was very professional and knowledgeable, promptly answering our questions and concerns. He helped us resolve our issue quickly. I highly recommend him.Response from the ownerAwesome to work with you and your family. Thanks again! linda millerlinda miller ★★★★★ We had a great experience working with Jerome. He was very responsive, provided a detailed quote, explained our options and answered all our questions. Day of installation, he was on-time, performed required work and conducted walk through to show us what was completed. Radon test results after mitigation were significantly reduced - came back at .5 - like breathing fresh air!! Would definitely recommend their services.Response from the ownerThanks Linda. It was great to work with you and your husband on this one. Really appreciate the opportunity to earn your business. Thanks! Scott BucherScott Bucher ★★★★★ Response from the ownerThanks Scott! james beckersjames beckers ★★★★★ Great communication about arrival timeMade time to fit me in the scheduleUp front communication on pricingJerome seemed like a really good guy who got the job done quickly and took time to answer all my questionsResponse from the ownerThanks, Jim! Camron WeathersCamron Weathers ★★★★★ Very professional service, with insight on how to monitor my system.Response from the ownerHappy to help, Camron! John BrugJohn Brug ★★★★★ Everything went smoothly in planning and installation and the post[-installation text showed a reading of 0.3, a huge decrease.Response from the ownerThanks John! Glad we could get you to fresh air levels. Ian DartIan Dart ★★★★★ They were great would recommend!Response from the ownerAwesome, Thanks Ian! Xiwu ZhaoXiwu Zhao ★★★★★ Response from the ownerThanks Xiwu. Glad we could make the basement safer for recreation. Todd KrupickaTodd Krupicka ★★★★★ Awesome job. Highly recommend. I was given options on the estimate walkthrough and went with the garage install for radon mitigation. Also got my sump pump and check valve replaced. Work is very well done and exceeds expectations. Jerome is a very nice guy and very professional. Answered all my questions before, during, and after the install. We're so happy that we went with Wisconsin Radon & Environmental.Response from the ownerThanks Todd! Brandon MuellerBrandon Mueller ★★★★★ Response from the ownerThanks Brandon! Mark EMark E ★★★★★ Outstanding experience with Jerome. I'm picky and do my due diligence. I was super pleased with the results. The radon level went down under 1 in just a few days and now it is under .5. I'm also very happy with the submersible sump pump and it is so much quieter than my pedestal pump. I definitely recommend!Response from the ownerThanks Mark. Glad we could meet your high expectations. Awesome to work with you! Chris mihmChris mihm ★★★★★ Awesome job quick and easyResponse from the ownerThanks Chris! Rachel LipkerRachel Lipker ★★★★★ Contacted Jerome for an over the phone quote after having another radon mitigation company come out. His price was lower and communication with him was great. Got us in sooner too. Arrived on time and even further reduced price after seeing we already had something he included in the quote. End result looks great. Would definitely recommend!Response from the ownerThanks Rachel. Glad we could include some savings on this one! Timothy BorchardtTimothy Borchardt ★★★★★ Response from the ownerThanks Timothy! Generous of you. js_loader