Advanced Inspections, LLC
Licensed Professional: Marc Tarkowski, CPI
At a Glance
About Advanced Inspections, LLC
With a 5-star Google rating from 109 reviews, Marc Tarkowski, CPI is among the top-rated radon professionals serving Oconomowoc, Wisconsin. Holds NRPP Radon Measurement Professional certification. Specializes in radon measurement and radon testing. With over 109 Google reviews, this is one of the most-reviewed radon professionals in Wisconsin.
Credentials & Verification
NRPP Radon Measurement Professional License
Licensed for professional radon testing and measurement
Issuing Body
National Radon Proficiency Program (NRPP)
License Type
Professional License
Status
Current through January 2027Verified against NRPP, RADON_SITE public databases · Last checked April 2026 · Report incorrect information
Contact & Location
Phone
(262) 354-5643
marctarkowski@gmail.com
Website
www.advancedinspectionsllc.com
Location
Oconomowoc, WI
Compare Contractors
View all in Oconomowoc →
ON SITE SERVICES LLC
Altoona, WI
A-1 Radon & Vacuum
Appleton, WI
Erickson Radon Solutions
Argyle, WI
24x7 Home Inspections
Beloit, WI
Not sure what you need?
Answer a few questions about your home and radon situation. We'll recommend whether you need testing, mitigation, or both.
Take the 90-Second AssessmentFree. No account required.
This listing has not been claimed by the business owner.
Are you the owner? Claim this listingCertification data sourced from NRPP/NRSB public databases. Verify current status directly with the contractor before hiring. FindRadonPros.com is a directory service and does not endorse or guarantee any contractor's work. Report incorrect information