| Business | Phone |
| Keith's Heating & Air Norman 73069 | (405) 364-8883 |
| Waggoners Heating & Air 1351 E Indian Hills Rd, Norman 73071 | (405) 329-2076 |
| Troy Heating & Air Cond Inc 313 E Main St, Norman 73069 | (405) 447-2255 |
| Sunbelt Heating Air & Refrig 2525 60th Ave Ne, Norman 73026 | (405) 360-1100 |
| Southwest Air Technologies 11301 Spencer Cir, Norman 73026 | (405) 447-6400 |
| Skinner Heating & Air Po Box 6211, Norman 73070 | (405) 364-9325 |
| Rmi Air Svc 3537 Mc Donnell Dr, Norman 73069 | (405) 321-0011 |
| Reliable Refrigeration Co 2008 Research Park Blvd, Norman 73069 | (405) 321-3606 |
| Prism Heating & Air 3901 Glisten Ct, Norman 73072 | (405) 360-3380 |
| Prism Heating & Air 402 Telstar St, Norman 73069 | (405) 672-9535 |
| Montgomery Electric 531 S Berry Rd, Norman 73069 | (405) 321-6678 |
| Masters Mechanical Heating 2013 Oakhollow Dr, Norman 73071 | (405) 329-7489 |