- Terry Roby Svc
- Testa Refrigeration LLC
- Thermal Aire
- Thermal-Aire
- Thomson Cooling & Heating Inc
- Three Rivers AC Heating
- Thrifty Service Heating & Air
- Tomie's Repair Svc
- Tony's Appliance Repair Svc
- Total Comfort Inc
- Total Refrigeration Repair
- Tradesman
- Trane Co
- Tri County Heating & Cooling
- Trimline Sheet Metal
- Turner Mechanical Svc Inc
- Twin Lake Air
- Valley Air Conditioning
- Valley Appliance Svc
- Vang Air Conditioning
- Velocity Air
- Versatile Mechanical Inc
- Vickers Service Co
- W E Estes & Son
- W J Dornfeld Co
- Wally's Refrigeration & AC
- Washington Repair
- Weaver's Appliance & Refrig
- Wesco Refrigeration
- Western Building Svc Inc
- Western Mechanical Air Cond
- Westpac Air Conditioning Inc
- Whelan's Heating & Air Cond
- Wichita Enterprises Heat/Cool
- Wildomar Heating & Cooling
- Williamson Air Conditioning
- Williamson Repair Svc
- York Refrigeration & Cooling
