| Business | Phone |
| American Services-St Louis 4430 Woodson Rd, St Louis 63134 | (314) 733-1776 |
| Arch Heating & Air Cond 9925 Affton Pl, St Louis 63123 | (314) 631-2090 |
| Budget Air St Louis 63109 | (314) 351-1864 |
| Waldinger Corp 4224 Clayton Ave, St Louis 63110 | (314) 423-4480 |
| Steinert Refrigeration Heating 6101 Virginia Ave, St Louis 63111 | (314) 351-9699 |
| Ryan Heating Co Inc 5822 Gravois Ave, St Louis 63116 | (314) 352-1111 |
| Papa John's Refrigeration 5600 S Kingshighway Blvd, St Louis 63109 | (314) 645-4232 |
| Mc Ardle's Heating & Cooling 5217 Gravois Ave, St Louis 63116 | (314) 862-6352 |
| Mauller Heating & Cooling Co 1153 Poelker Ct, St Louis 63137 | (314) 388-4221 |
| Hi-Pointe Air Cond & Heating 5354 Southwest Ave, St Louis 63139 | (314) 772-5277 |
| Goodenough Heating & Air Cond 6436 Odell St, St Louis 63139 | (314) 645-6228 |
| Jefferson Co Heating & Cooling 837 Karlsruhe Pl, St Louis 63125 | (314) 265-5062 |
| Engineered Air Inc 9234 Shortridge Ave, St Louis 63144 | (314) 968-6882 |