Radon Measurement and Mitigation Contractors
Interested in becoming a certified radon measurement or mitigation contractor?
Trainings are held in Wisconsin twice per year; check the training page to get dates and locations. To be listed on this page, contact the Wisconsin Radon Grant Manager once you obtain certification.
Certified radon measurement and mitigation
Below is a list of contractors certified for measuring radon and reducing it. These contractors must pass a national exam, meet continuing education requirements, maintain a quality-assurance program, and follow appropriate testing protocols to be listed on this page.
Being listed on this page does not constitute endorsement by the State of Wisconsin or the Department of Health Services. The lists are provided as an additional resources for interested individuals.
Wisconsin has no radon regulations. As a result, homeowners are best served by educating themselves as much as possible before hiring a contractor and having a system installed. Before selecting a contractor from the Wisconsin list, first read the U.S. Environmental Protection Agency (EPA) booklet Consumers Guide to Radon Reduction. On page 4 there is a checklist to use as a guide for selecting a contractor.
The following are some additional general tips for those who need to hire a contractor.
- The certified individual must show up at the job site, at least to supervise, although they don't have to stay throughout the work. When inquiring about estimates, ask the person answering a call if the certified individual will be doing the work or at least inspect the system, and be sure he or she does.
- The fan must be outside the basement and the exhaust stack must go up to the roof, at least 10 feet above ground and 2 feet above any windows less than 10 feet away. If the exhaust is released at the sill of a house, some of this radon can enter the house through openings at the sill plate (where the basement sucks it in), and potentially into nearby windows. Studies have shown the average indoor radon can be increased by 1 pCi/L or more by these effects. In addition, experienced EPA contractors show that the joints and couplings to radon fans tend to leak radon on the high pressure side, significantly reducing the effectiveness of mitigation systems with fans in basements.
- For a list of mitigation system standards see the U.S. Environment Protection Agency (EPA) booklet Consumer's Guide to Radon Reduction, or call a Wisconsin Regional Radon Information Center toll-free, 1-888-LOW-RADON.
- These lists are updated frequently, but may not reflect the most current information. To find the status of a contractor's certification, visit the National Radon Proficiency Program (NRPP) and National Radon Safety Board (NRSB) websites and search for the contractor by name or zip code.
Sorted by county: Each contractor serves surrounding counties.
Certification Credentials | Company Name | County | Telephone |
---|---|---|---|
Robert Miles NRPP: RT-112305 Expiration: 8/31/2023 |
Five Miles Home Inspection | Barron | 715-869-6248 |
Adam Olinski NRPP: RT-104254 Expiration: 3/31/2024 |
A-1 Radon & Vacuum | Brown | 920-639-6542 |
Jason Trimberger NRPP: RT-106226 Expiration: 5/31/2025 |
Great Lakes Radon Testing & Mitigation LLC | Brown | 920-660-6324 |
Jacob Cisewski NRPP: RT-108101 Expiration: 10/31/2023 |
JC Radon Services, LLC | Buffalo | 507-458-2730 |
Matthew Antczak NRPP: RT-111740 Expiration: 12/31/2024 |
CESA10 | Chippewa | 715-271-5297 |
Chandler Bernklau NRPP: 112573-RT Expiration: 1/31/2024 |
Radon Solutions LLC. | Chippewa | 715-644-8352 |
Jeffrey Hartman NRPP: 104925-RT Expiration: 5/31/2025 |
Wisconsin Radon Measurement & Mitigation | Chippewa | 715-559-0684 |
Carl J. Francis NRPP: RT-103659 Expiration: 2/29/2024 |
Radon Measurement and Mitigation | Columbia |
920-948-1345 |
Lance N. Rule |
Wisconsin Radon Services LLC | Columbia | 608-279-7853 |
Jason Bender NRPP: RT-112810 Expiration: 4/30/2024 |
Rock Mechanical LLC | Dane | 608-422-2789 |
Lance N. Rule NRPP: RT-108622 Expiration: 4/30/2024 |
Wisconsin Radon Services LLC | Dane | 608-279-7853 |
Michael Gallagher NRPP: RMP-106250 Expiration: 7/31/2025 |
MPG Radon Services | Dane | 608-516-5541 |
Kirk Mefford NRPP: 108789-RMP Expiration: 7/31/2024 |
Madison Radon Testing, LLC | Dane | 608-438-7831 |
Lindsay Mefford NRPP: 108534-RMP Expiration: 4/30/2024 |
Madison Radon Testing, LLC | Dane | 608-438-7831 |
Kade Mcgilvray NRPP: RT-112452 Expiration: 10/31/2023 |
Aprilaire | Dane | 608-220-4886 |
Brian Kennihan NRPP: RT-112154 Expiration: 5/31/2025 |
Aprilaire | Dane | 800-334-6011 |
Grant Meadows NRPP: RT-112275 Expiration: 12/31/2023 |
Aprilaire | Dane | 608-310-6266 |
Leonard Wilkosz NRSB: RMS-16SS060 Expiration: 7/20/2024 |
Wolf Home Inspection, LLC | Dane | 608-234-0455 |
Tami Jaeck NRPP: RT-112041 Expiration: 5/31/2025 |
HSH Property Inspection | Dodge | 262-305-0314 |
Gary Millikin NRPP: RT-109971 Expiration: 8/31/2024 |
R.E. Millikin Construction Ltd. | Dodge | 414-510-2331 |
Paul VanEngen NRPP: 113462-RMP Expiration: 12/31/2024 |
Inspect The Best WI | Dodge | 262-665-9990 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Dodge | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Dodge | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Dodge | 262-797-8949 |
Robert Lietha NRSB: RT-108457 Expiration: 2/29/2024 |
Inspector Rob Agency, LLC | Douglas | 218-393-6482 |
Derick Leverty NRPP: 110733 RT Expiration: 1/31/2024 |
Radon Associates, LLC | Dunn | 866-697-2366 |
Michael Langer NRPP: 105758 RT Expiration: 6/30/2024 |
Langer Construction | Dunn | 651-261-1830 |
Damian Treiber |
Radon Contractors, Testing, and Mitigation | Florence | 906-774-3795 FAX 906-774-2257 |
Jerome O'Callaghan NRPP: RT-105888 Expiration: 7/31/2024 |
Wisconsin Radon and Environmental, LLC | Fond du Lac | 414-477-6026 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Fond du Lac | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Fond du Lac | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Fond du Lac | 262-797-8949 |
Thomas J. Beatty NRPP: 110281 RT Expiration: 5/31/2025 |
Inspection Services of Wisconsin LLC | Green Lake | 920-284-4806 |
Joseph Dach NRPP:110637-RT Expiration: 5/31/2025 |
Area Inspection Services | Jefferson | 920-988-8035 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Jefferson | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Jefferson | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Jefferson | 262-797-8949 |
Peter Decker NRPP: 113640-RMP Expiration: 7/31/2025 |
Pioneer Engineering & Environmental Services, LLC | Kenosha | 773-722-9200 x110 |
Terry Johnson NRPP: RT-111941 Expiration: 3/31/2025 |
T - Rex Inspections LLC | Kenosha | 262-581-3367 |
Karla Newman NRPP: RT-103009 Expiration: 3/31/2025 |
Radon Remedy - Testing Division | Kenosha | 262-577-5515 |
Seth M. Newman NRSB: 21SS033 Expiration: 9/30/2023 |
Radon Testing Help | Kenosha | 262-760-9200 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Kenosha | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Kenosha | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Kenosha | 262-797-8949 |
Tim Oglesby NRPP: 111019-RT Expiration: 12/31/2023 |
Safe Haven Radon Solutions | Kenosha | 262-620-8262 |
Paul VanEngen NRPP: 113462-RMP Expiration: 12/31/2024 |
Inspect The Best WI | Kenosha | 262-665-9990 |
Travis Fronk NRPP: RT-109760 Expiration: 4/30/2024 |
Absolute Inspection, LLC | La Crosse | 608-636-4772 |
Lucas Erickson NRPP: RT-108150 Expiration: 9/30/2024 |
Erickson Radon Solutions | Lafayette | 608-558-6155 |
Benjamin Stromberg NRPP: RT-107538 Expiration: 5/31/2024 |
Abatron Engineering | Marathon | 715-675-7277 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Milwaukee | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Milwaukee | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Milwaukee | 262-797-8949 |
Jerome O'Callaghan NRPP: RT-105888 Expiration: 7/31/2024 |
Wisconsin Radon and Environmental, LLC | Milwaukee | 414-477-6026 |
Chad Rogness NRPP: RT-109367 Expiration: 12/31/2024 |
Lifetime Radon Solutions | Milwaukee | 262-955-5701 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Ozaukee | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Ozaukee | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Ozaukee | 262-797-8949 |
Paul VanEngen NRPP: 113462-RMP Expiration: 12/31/2024 |
Inspect The Best WI | Ozaukee | 262-665-9990 |
Mike Boumeester NRPP: RT-108386 Expiration: 6/30/2024 |
Radon Associates, LLC | Polk | 866-697-2366 |
Joyce Boumeester NRPP: RMP-110682 Expiration: 7/31/2023 |
Radon Associates, LLC | Polk | 866-697-2366 |
Gregory Groshek NRPP: 112076 RT Expiration: 9/30/2023 |
Radon Specialist | Portage | 715-252-9092 |
Dixie Weidman NRPP: RT-111914 Expiration: 7/31/2023 |
Northwoods Property Inspections | Price | 715-934-9105 |
Michael Weidman NRPP: RT-111913 Expiration: 7/31/2023 |
Northwoods Property Inspections | Price | 715-934-9105 |
Joe Bednarek NRPP: 110820-RT Expiration: 9/30/2023 |
Quality Inspections, LLC dba National Property Inspections | Racine | 262-636-9909 |
Scott Cleven NRPP: RT-108085 Expiration: 11/30/2023 |
Timber Ridge Home Inspection LLC | Racine | 262-770-2864 |
James Oezer NRPP: RT-108243 Expiration: 9/30/2023 |
National Property Inspections | Racine | 262-636-9909 |
Kenneth W Naujock |
Radon Gone LLC | Racine | 262-227-4956 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Racine | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Racine | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Racine | 262-797-8949 |
James Seichter NRPP: RT-108578 Expiration: 4/30/2024 |
24x7 Home Inspections | Rock | 608-302-5494 |
John Thompson |
A.T. Pro Mitigation Systems | Rock | 608-758-0291 |
Jeff Anderson NRPP: RMP-112351 Expiration: 3/31/2024 |
Anderson Radon | Rock | 815-353-7846 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Rock | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Rock | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Rock | 262-797-8949 |
Jeff Scott NRPP: RT-107974 Expiration: 3/31/2025 |
Wisconsin Inspection Services & Consulting, LLC | Sauk | 608-434-0790 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Sheboygan | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Sheboygan | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Sheboygan | 262-797-8949 |
Jesse Green NRPP: RT-107553 Expiration: 4/30/2024 |
American Radon Mitigation | St. Croix | 612-474-1004 |
Ryan Stewart NRPP: RT-110562 Expiration: 4/30/2025 |
Straight Answer Home Inspections LLC | St. Croix | 715-529-1889 |
Jim Schaller NRPP: RT-109887 Expiration: 8/31/2024 |
Professional Radon Service | Vernon | 608-606-3014 |
David Cook NRPP: 107864-RMP Expiration: 1/31/2025 |
Apostle Radon and Indoor Air Solutions | Walworth | 262-749-4266 |
Thomas B Cook Jr. NRPP: 111255-RT Expiration: 8/31/2024 |
Tom's Mitigation, LLC | Walworth | 262-749-1292 |
Michael Jensen RNI2020209 Expiration: 6/30/2025 |
MJ Home Services, Inc. | Walworth | 815-355-8675 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Walworth | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Walworth | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Walworth | 262-797-8949 |
Jerry Kramer NRPP: RT-112237 Expiration: 6/30/2025 |
Northern Waters Inspection and Testing | Washburn | 715-255-0478 |
Tami Jaeck NRPP: RT-112041 Expiration: 5/31/2025 |
HSH Property Inspection | Washington | 262-305-0314 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Washington | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Washington | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Washington | 262-797-8949 |
Paul VanEngen NRPP: 113462-RMP Expiration: 12/31/2024 |
Inspect The Best WI | Washington | 262-665-9990 |
Jennifer Campbell NRPP: RT-106368 Expiration: 7/31/2023 |
Lifetime Radon Solutions, Inc. | Waukesha | 262-955-5701 |
Brian Thompson NRPP: RT-109591 Expiration: 2/29/2024 |
Lifetime Radon Solutions, Inc. | Waukesha | 262-955-5701 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 FAX 262-797-0798 |
George Booth NRPP: 109947 Expiration: 1/31/2024 |
SWAT Environmental | Waukesha | 262-754-2211 |
Gavin Kosek NRPP: 112201-RT Expiration: 6/30/2025 |
SWAT Environmental | Waukesha | 262-754-2211 |
Paul Nicholson NRPP: RT-102417 Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 |
Chase Nicholson NRPP: 104943-RMP Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 |
Pierce Nicholson NRPP: 108069-RMP Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 |
Josh Ostby NRPP: 111509-RT Expiration: 9/30/2024 |
SWAT Environmental | Waukesha | 608-215-2241 |
Marc Tarkowski NRPP: 111648-RT Expiration: 1/31/2025 |
Advanced Inspections, LLC | Waukesha | 262-354-5643 |
Kevin Toll NRPP: 113279-RMP Expiration: 9/30/2024 |
Kettle Moraine Heating & Air Conditioning, LLC | Waukesha | 262-221-9323 |
Paul VanEngen NRPP: 113462-RMP Expiration: 12/31/2024 |
Inspect The Best WI | Waukesha | 262-665-9990 |
David Daniels NRPP: RT-101791 Expiration: 6/30/2023 |
Radon Specialists of Wisconsin, Inc. | Winnebago | 920-751-0152 |
Dylan Szews NRPP: RT-112231 Expiration: 7/31/2023 |
Radon Specialists of Wisconsin, Inc. | Winnebago | 920-751-0152 |
Sorted by county: Each contractor serves surrounding counties.
Certification Credentials | Company Name | County | Phone |
---|---|---|---|
Jamie Adamski NRPP: 104698-RMS Expiration: 11/30/2023 |
Adamski Builders, LLC | Ashland, Bayfield, Burnett | 218-727-2495 |
Jason Trimberger NRPP: 106227RMT Expiration: 5/31/2025 |
Great Lakes Radon Testing and Mitigation, LLC | Brown | 920-660-6324 |
Adam Olinski NRPP: 104255RMT Expiration: 3/31/2024 |
A-1 Radon & Vacuum | Brown | 920-639-6542 |
Jacob Cisewski NRPP: 108102RMT Expiration: 10/31/2023 |
JC Radon Services, LLC | Buffalo | 507-458-2730 |
Chandler Bernklau NRPP: 112574-RMS Expiration: 1/20/2024 |
Radon Solutions LLC. | Chippewa | 715-644-8352 |
Jeffrey Hartman NRPP: 104926RMT Expiration: 5/31/2025 |
Wisconsin Radon Measurement and Mitigation | Chippewa | 715-559-0684 |
Carl Francis NRPP: 103660RMT Expiration: 2/28/2024 |
Radon Measurement and Mitigation, Inc. | Columbia | 920-948-1345 |
Lance Rule NRPP: RMT-108623 Expiration: 04/30/2024 |
Wisconsin Radon Services LLC | Columbia | 608-279-7853 |
Lance Rule NRPP: RMT-108623 Expiration: 4/30/2024 |
Wisconsin Radon Services LLC | Dane | 608-279-7853 |
Michael Gallagher NRPP: 106251-RMS Expiration: 7/31/2025 |
MPG Radon Services | Dane | 608-516-5541 |
David Cook NRPP: 107496-RMS Expiration: 3/31/2024 |
Apostle Radon and Indoor Air Solutions | Dane | 262-749-4266 |
Kade Mcgilvray NRPP: RMT-112453 Expiration: 10/31/2023 |
Aprilaire | Dane | 608-220-4886 |
Grant Meadows NRPP: RMT-112276 Expiration: 12/31/2023 |
Aprilaire | Dane | 608-310-6266 |
Gary Millikin NRPP: 109972RMT Expiration: 8/31/2024 |
R.E. Millikin Construction Ltd. | Dodge | 414-510-2331 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Dodge | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Dodge | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Dodge | 262-797-8949 |
Rodney Reible NRPP: 107491RMT Expiration: 3/31/2024 |
Advanced Radon Solutions | Dodge | 920-296-4310 |
Jamie Adamski NRPP: 104698-RMS Expiration: 11/30/2023 |
Adamski Builders, LLC | Douglas | 218-727-2495 |
Jeffrey Hartman NRPP: 104926RT Expiration: 5/31/2025 |
Wisconsin Radon Measurement and Mitigation | Eau Claire | 715-559-0684 |
Ron Cutter NRPP: 106065RMT Expiration: 5/31/2025 |
Cutter Vac, LLC | Fond du Lac | 920-922-3360 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Fond du Lac | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Fond du Lac | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Fond du Lac | 262-797-8949 |
Cameron Christenson NRPP: RMT-109243 Expiration: 8/31/2025 |
Hady Electric, Inc. | Jefferson | 920-261-4947 |
Joseph Dach NRPP:110638RMT Expiration: 5/31/2025 |
Area Inspection Services | Jefferson | 920-988-8035 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Jefferson | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Jefferson | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Jefferson | 262-797-8949 |
Karla Newman NRPP: 101916RMT Expiration: 3/31/2025 |
Radon Remedy, LLC | Kenosha | 800-917-2366 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Kenosha | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Kenosha | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Kenosha | 262-797-8949 |
Jeff Tenuta NRPP: 101809RMT Expiration: 3/31/2025 |
American Radon Removal Co | Kenosha | 262-657-9000 |
Tim Oglesby NRPP: 111020RMT Expiration: 12/31/2023 |
Safe Haven Radon Solutions | Kenosha | 262-620-8262 |
Josh Dummer NRPP: RMT -108941 Expiration: 1/31/2025 |
Radon Service Plus LLC | La Crosse | 608-304-5925 |
Lucas Erickson NRPP: 108151RMT Expiration: 9/30/2024 |
Erickson Radon Solutions | Lafayette | 608-558-6155 |
Mark Howe NRPP: 104707RMT Expiration: 9/30/2023 |
Howe Radon Contracting | Marathon | 715-370-1402 |
Benjamin Stromberg NRPP: 107539RMT Expiration: 5/31/2024 |
Abatron Engineering | Marathon | 715-675-7277 |
Scot Wickersheim NRPP: 112866-RMS Expiration: 5/31/2024 |
The Radon Man of WI, LLC | Marathon | 715-870-5887 |
Keith Fisher NRPP: 107046RMT Expiration: 8/31/2023 |
Accurate Radon Mitigation Systems, Inc. | Milwaukee | 262-378-1293 |
Jerome O' Callaghan NRPP: 105889RMT Expiration: 7/31/2024 |
Wisconsin Radon and Environmental | Milwaukee | 414-477-6026 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Milwaukee | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Milwaukee | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Milwaukee | 262-797-8949 |
Chad Rogness NRPP: 106455RMT Expiration: 1/31/2024 |
Lifetime Radon Solutions | Milwaukee | 262-955-5701 |
Chris Bonniwell NRPP: 112138 RMT Expiration: 5/31/2025 |
Protect Environmental | Ozaukee | 262-202-7393 |
Eric John Lehner NRPP: 106393 RMT Expiration: 2/28/2024 |
Stonehenge Development Inc | Ozaukee | 414-659-0928 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Ozaukee | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Ozaukee | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Ozaukee | 262-797-8949 |
Ethan Sandstrom NRPP: RMT-107521 Expiration: 11/30/2024 |
Better Basement Solutions | Pierce | 715-307-9718 |
Mike Boumeester NRPP: RMT-108712 Expiration: 6/30/2024 |
Radon Associates, LLC | Polk | 866-MY-RADON 866-697-2366 |
Anthony Walter NRPP:108380RMT Expiration: 12/31/2023 |
All Electric, LLC | Portage | 715-897-2693 |
Kenneth W Naujock NRPP: 110594-RMS Expiration: 12/31/2023 |
Radon Gone LLC | Racine | 262-227-4956 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Racine | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Racine | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Racine | 262-797-8949 |
Jeff Anderson NRPP: 112629 RMS Expiration: 2/29/2024 |
Anderson Radon | Rock | 815-353-7846 |
David Cook NRPP: 107496-RMS Expiration: 3/31/2024 |
Apostle Radon and Indoor Air Solutions | Rock | 262-749-4266 |
Jeff Karich NRPP ID 106046RMT Expiration: 5/31/2024 |
Superior Radon Mitigation, LLC | Rock | 800-631-1403 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Rock | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Rock | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Rock | 262-797-8949 |
John Thompson NRPP: 103633RMT Expiration: 10/31/2023 |
A.T. Pro Mitigation Systems | Rock | 608-758-0291 |
Jamie Adamski NRPP: 104698-RMS Expiration: 11/30/2023 |
Adamski Builders, LLC | Sawyer | 218-727-2495 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Sheboygan | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Sheboygan | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Sheboygan | 262-797-8949 |
Jesse Green NRPP: RMT 107554 Expiration: 4/30/2024 |
American Radon Mitigation | St. Croix |
612-474-1004 |
Ryan Stewart NRPP: RMT-110563 Expiration: 04/30/2025 |
Straight Answer Home Inspections LLC | St. Croix | 715-529-1889 |
Mike Boumeester NRPP: RMT-108712 Expiration: 6/30/2024 |
Radon Associates, LLC | St. Croix | 866-MY-RADON 866-697-2366 |
Michael Langer NRPP: 105759RMT Expiration: 6/30/2024 |
Langer Construction | St. Croix | 651-261-1830 |
Derick Leverty NRPP: 110733 RT Expiration: 1/31/2024 |
Radon Associates, LLC | St. Croix | 866-697-2366 |
Jeff Nelson NRPP: 104202RMT Expiration: 11/30/2024 |
Nelson Construction Radon Systems & Service | St. Croix | 715-781-5542 |
Jim Schaller NRPP: 110003RMT Expiration: 8/31/2024 |
Professional Radon Service | Vernon | 608-606-3014 |
David Cook NRPP: 107496-RMS Expiration: 3/31/2024 |
Walworth | 262-749-4266 | |
Thomas B. Cook Jr. NRPP: 111216 RMT Expiration: 8/31/2024 |
Tom's Mitigation LLC | Walworth | 262-749-1292 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Walworth | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Walworth | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Walworth | 262-797-8949 |
Jamie Adamski NRPP: 104698-RMS Expiration: 11/30/2023 |
Adamski Builders, LLC | Washburn | 218-727-2495 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Washington | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Washington | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Washington | 262-797-8949 |
Scott Campbell NRPP: 101552RMT Expiration: 10/31/2023 |
Lifetime Radon Solutions | Waukesha | 262-955-5701 |
Brian Thompson NRPP: RMT-109619 Expiration: 2/29/2024 |
Lifetime Radon Solutions | Waukesha | 262-955-5701 |
Timothy Henneman NRPP: 11934RMT Expiration: 6/30/2025 |
Lifetime Radon Solutions | Waukesha | 262-955-5701 |
David Cook NRPP: 107496-RMS Expiration: 3/31/2024 |
Apostle Radon and Indoor Air Solutions | Waukesha | 262-749-4266 |
Kevin Toll NRPP: 113260-RMS Expiration: 9/30/2024 |
Kettle Moraine Heating & Air Conditioning, LLC | Waukesha | 262-221-9323 |
Gary Lusz NRPP: 105001RMT Expiration: 10/31/2024 |
Best Radon Solutions, LLC | Waukesha | 262-745-4764 |
Paul Nicholson NRPP: 102418RMT Expiration: 11/30/2023 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 |
Chase Nicholson NRPP: 104944-RMS Expiration: 2/29/2024 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 |
Pierce Nicholson NRPP: 108070-RMS Expiration: 12/31/2023 |
Radon Measurement and Elimination Services | Waukesha | 262-797-8949 |
Rick Weber NRPP: 104185RMT Expiration: 3/31/2025 |
Radon Rescuers, LLC | Waukesha | 262-470-5332 |
Mike Gryszkiewicz NRPP: 104175RMT Expiration: 3/31/2025 |
Radon Rescuers | Waukesha | 262-844-4267 |
George Booth NRPP: 107258RMT Expiration: 1/31/2024 |
SWAT Environmental | Waukesha | 414-442-1300 |
Mike Green NRPP: 111398 RMT Expiration: 8/31/2024 |
SWAT Environmental | Waukesha | 262-754-2211 |
Gavin Kosek NRPP: 112202 RMT Expiration: 6/30/2025 |
SWAT Environmental | Waukesha | 262-754-2211 |
Adam Weber NRPP: 105560 RMT Expiration: 11/30/2023 |
Marshfield Radon Service | Wood | 715-305-6954 |
National Radon Consensus Standards
These standards are free for online-viewing and provide guidance on radon measurement and mitigation efforts of all building types. We encourage the use of these current codes and standards to help ensure public health protection.
Looking outside Wisconsin?
These lists are from two national certifying organizations that have the most current information:
- American Association of Radon Scientists and Technologists
Current lists of certified radon measurers, mitigators, manufacturers and labs selling radon detectors. - National Radon Safety Board
The radon proficiency certification programs of the National Radon Safety Board. Lists of certified radon measurers, mitigators, manufacturers and laboratories selling radon detectors.