Milwaukee Area



Madison & NE WI Area



Contact Us

Contact Radon Specialists of Wisconsin

Please call the office before coming to the shop. We’re open during the following hours, but may be out of the office doing Radon tests or estimates.

Monday – Friday  8:00am to 6:00pm. Call David’s cell phone after 6:00pm.
Saturday 8:00am to 12:00pm.
Sunday Closed.
If we don’t answer our phone, please leave a message or email us – we will get back to you ASAP.

NE WI: 920-751-0152
Madison: 866-569-7236
Milwaukee: 844-569-7236
Sun Prairie: 608-834-3176
Menomonee Falls: 262-293-9180
Fax: 920-751-0197
Email David Daniels

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Three convenient locations to serve you better.

840 Willard Drive Suite 205
Green Bay, WI 54304

1072 Rock Ledge Ln
Neenah, WI 54956

W141N5964 Kaul Avenue
Menomonee Falls, WI 53051

2890 Terra Ct, Unit 24
Sun Prairie WI, 53590

David Daniels, Owner/Operator920-858-1130 (cell)
Nick Marks, Manager - Fox Valley OfficeCall David
Brandon Wittmann, Manager - Madison OfficeCall David
Pat Lewis, Testing/SalesCall David
Ryan Mancheski, Manager - Milwaukee OfficeCall David
Joe Beil, Installer Milwaukeecall David
Ben Daniels, Installer Fox ValleyCall David
Jason Lloyd, Installer Fox ValleyCall David
Courtney Billington, Office ManagerCall David
Lucy Daniels, David’s spouse920-858-1640 (Emergencies)