CL
CMXtreme LLC
Elgin, IL
Radon testing and mitigation in Cook County, IL
25 certified radon testers and mitigation contractors in Cook County, IL. Mitigation contractors are listed first.
25 certified prosUpdated October 2026Source: state certification lists and the NRPP directory
Pros in this state come from the NRPP national certification directory (checked Oct 28, 2026). Get Radon Quotes is independent and not affiliated with NRPP. Some states also require a state license, so confirm with your state radon office before you hire. Your state radon office.
25 certified pros near Cook County, IL
MR
Midwest Radon Services, Inc
La Grange Park, IL
SE
Swat Environmental
Calumet City, IL
UW
U.S. Waterproofing
Palatine, IL
BR
BreatheSafe Radon Solutions
Chicago, IL
CS
Consulting Solutions Inc.
Northbrook, IL
CS
Consulting Solutions, Inc.
Chicago, IL
CR
Crosstown Radon Solutions
Chicago, IL
HR
Hanna Radon Detection, Inc.
Northbrook, IL
HP
Home and Property Review, Inc.
Tinley Park, IL
LE
Langan Engineering & Environmental Services
Chicago, IL
MH
Merino's Home Inspection & Education Inc. dba Progeny Radon Test
Oak Forest, IL
MW
Molly Weisgrau
Chicago, IL
NR
NorthWest Radon Testing - FH Inspections & Radon ,Inc
Arlington Heights, IL
PE
Partner Engineering and Science, Inc.
Chicago, IL
PE
Partner Engineering and Sciences, Inc.
Chicago, IL
PE
Pioneer Engineering & Environmental Services, LLC
Chicago, IL
PE
Protect Environmental
Chicago, IL
QC
Quick Close Radon
Elgin, IL
RI
RSSI, Inc
Morton Grove, IL
RG
Radon Gone LLC
Chicago, IL
RP
Radon Professional Services, LLC
Berwyn, IL
TH
True Home Inspections, Inc
Arlington Heights, IL
US
U S Waterproofing
Schaumburg, IL
VR
VS Radon Professionals LLC
Chicago, IL
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Radon guides
Common questions
Who installs radon systems near Cook County, IL?
The certified mitigation contractors listed above serve Cook County, IL and the surrounding county. Get two or three quotes.
How much does radon mitigation cost near Cook County, IL?
Typical residential systems cost in the high hundreds to low thousands of dollars depending on the foundation and how the pipe is routed. See our mitigation cost guide.