1. Radon Management Systems
2292 State Route 31, Oswego, IL 60543
Coordinate: 41.68847,-88.3541
Phone: (630) 708-7536
2. RKC Inspections
232 Whitetail Xing, Oswego, IL 60543
Coordinate: 41.69424,-88.35733
Phone: (630) 373-4229
3. Discovery Inspection Services
Po Box 639, Oswego, IL 60543
Coordinate: 41.684895,-88.34531
Phone: (630) 854-2454