Cook County
Local NEHA certified Radon Measurement Specialists
Certified Radon Inspectors
NEHA Certified Radon Measurement Specialists
| Company | Inspector | Phone | City | County |
| Landauer, Inc. | Mark R. Salasky | (708) 755-7000 | Glenwood | Cook |
| RSSI 6312 West Oakton Street | Roger Marsh | (847) 965-1999 | IL | Cook |
| GlobeSpec | Myron G. Sonkin | (630) 690-5363 | Carol Stream | Du Page |
| Metrospect, Ltd. | Robert A. Packer | (847) 808-8488 | Buffalo Grove | Lake |
| Environmental Solutions Group, Inc. | Brian Gerike | (219) 769-3400 | Merrillville | Lake |
| Peoples Choice Home Inspection Svcs | John R. Oelberg | (219) 322-3600 | Schererville | Lake |
| Peoples Choice | Scott Moran | (219) 365-9005 | St. John | Lake |