HVAC Contractor Directory › Illinois
HVAC CONTRACTORS IN ILLINOIS
Find licensed and verified HVAC contractors serving Illinois. Browse by service type below.
Northern Illinois Climate
📍 Rockford, Illinois
📞 (815) 555-0258
Commercial HVAC, Installation
Prairie State Heating & Air
📍 Springfield, Illinois
📞 (217) 555-0194
Maintenance & Tune-Up, Residential HVAC
Windy City HVAC Systems
📍 Chicago, Illinois
📞 (312) 555-0136
Installation, Residential HVAC
+ Add your business to this directory
HVAC Licensing in Illinois
HVAC contractors in Illinois must hold a valid state contractor license. Always verify your contractor is licensed, carries liability insurance, and employs EPA 608-certified technicians for refrigerant handling.