| AA AIR SERVICE | NORMAN, OK | (405) 447-7378 |
| B J'S HEATING AND AIR CONDITIONING | NORMAN, OK | (405) 329-1514 |
| BENSON HEATING & AIR CONDITIONING | 3920 CLASSEN BLVD NORMAN, OK | (405) 364-7041 |
| BRAD'S HEATING & AIR INC | NORMAN, OK | (405) 364-9194 |
| CITY PLUMBING HEATING & AIR CONDITIONING | 1001 N UNIVERSITY BLVD NORMAN, OK | (405) 329-8273 |
| COMPTON'S AIR QUALITY EXPERTS | 5450 HUETTNER DR NORMAN, OK | (405) 360-6370 |
| COONS HEATING & AIR CONDITIONING | 5200 96 AVE SE NORMAN, OK | (405) 872-9698 |
| DRABEK & HILL INC AIR CONDITIONING & HEATING | 3309 BROCE CT NORMAN, OK | (405) 579-8600 |
| HOLLOWAY HEATING & AIR CONDITIONING | NORMAN, OK | (405) 366-1641 |
| JOES HEATING & AIR CONDITIONING | 1716 N CRAWFORD AVE NORMAN, OK | (405) 579-0530 |
| KELSO HEATING & AIR | 229 N SHERRY AVE NORMAN, OK | (405) 329-7755 |
| MCNABB HEATING & AIR & REFRIGERATION SERVICE | 1709 MORREN DR NORMAN, OK | (405) 360-6865 |
| NORTHWIND HEAT AND AIR | NORMAN, OK | (405) 364-5586 |
| S & D HEAT & AIR | NORMAN, OK | (405) 307-9353 |
| SOUTHWEST AIR TECHNOLOGIES | 11301 SPENCER CIR NORMAN, OK | (405) 447-6400 |
| TAH MECHANICAL INC | 17900 E FRANKLIN RD NORMAN, OK | (405) 360-7114 |
| WAGGONERS' HEATING & AIR CONDITIONING | 3451 N FLOOD AVE NORMAN, OK | (405) 329-2076 |