| Business | Phone |
| A Airscope Richardson 75080 | (972) 238-0000 |
| A-Ok Air Conditioning & Htg 536 Rorary Dr, Richardson 75081 | (972) 907-0013 |
| Ac-Appliance Pros 1701 N Greenville Ave 803, Richardson 75081 | (972) 664-0055 |
| Acdc Air-Conditioning Richardson 75080 | (972) 231-1764 |
| Air Comfort Co 604 N Interurban St, Richardson 75081 | (972) 235-6139 |
| Appliance & A/C Clinic Inc 940 E Belt Line Rd 122, Richardson 75081 | (972) 234-6888 |
| Air Control Svc Co 1709 Barclay Dr, Richardson 75081 | (972) 238-0015 |
| Aire Masters 1891 N Plano Rd, Richardson 75081 | (972) 437-5016 |
| Allison Air Condition & Htg 1218 Magnolia Dr, Richardson 75080 | (972) 234-8484 |
| American Air Systems Richardson 75081 | (972) 272-0155 |
| Ameritech Richardson 75081 | (972) 907-9999 |
| Bac Better Air Conditioning 1125 Greencove Ln, Richardson 75081 | (972) 234-6843 |
| Burr Air Conditioning & Htg 635 Presidential Dr, Richardson 75081 | (972) 889-1856 |
| Chill Air Concept 820 Firestone Ln, Richardson 75080 | (972) 699-8080 |
| Cool Mist 777 N Grove Rd, Richardson 75081 | (972) 562-7121 |
| D & D Svc 405 N Bowser Rd B5, Richardson 75081 | (972) 234-6883 |
| Dakota Air 300 Amherst Ave, Richardson 75081 | (972) 907-0596 |
| Econo-Air & Mechanical Richardson 75081 | (972) 479-0100 |
| Fischer Pylate Ac & Heating Po Box 851016, Richardson 75085 | (972) 690-9323 |
| Gulf Energy Systems 818 S Central Expy 16, Richardson 75080 | (972) 699-1953 |
| Hammack Air Conditioning & Htg 723 S Sherman St 1, Richardson 75081 | (972) 669-9192 |
| Hargis Heat & Air 126 N Cottonwood Dr, Richardson 75080 | (972) 907-1039 |
| Hendrickson Air & Heating 332 High Brook Dr, Richardson 75080 | (972) 235-4069 |
| Jaric Co 500 E Arapaho Rd 507, Richardson 75081 | (972) 423-1279 |
| John's Air Conditioning & Htg 608 Westwood Dr, Richardson 75080 | (972) 783-1909 |
| Krueger 1401 N Plano Rd, Richardson 75081 | (972) 680-9126 |
| Memon Refrigeration & Ac 1701 E Spring Valley Rd, Richardson 75081 | (469) 446-9443 |
| Philla Air Conditioning & Htg 101 S Coit Rd 36-2, Richardson 75080 | (972) 788-2244 |
| Sexton Air Conditioning Richardson 75080 | (972) 480-8580 |
| Tech Air Conditioning 327 Brookwood Dr, Richardson 75080 | (972) 783-8720 |
| Tech Air Conditioning 512 Apollo Rd, Richardson 75081 | (972) 783-6886 |
| Central Mechanical Heating 3808 Barrington Dr, Richardson 75082 | (972) 808-9696 |
| Dalco Air Cond & Heating Co 7310 Military Pkwy, Richardson 75081 | (214) 381-1445 |