| Business | Phone |
| Ace Heating Inc 725 Industry Dr, Seattle 98188 | (206) 244-4328 |
| Action Air Systems Seattle 98101 | (206) 344-5550 |
| Advanced Energy Savers Inc 111 S Lander St, Seattle 98134 | (206) 623-0475 |
| Advanced Energy Savers Inc 11212 3rd Ave S, Seattle 98168 | (206) 241-7930 |
| Air King Heating & Air Cond Seattle 98101 | (206) 624-2302 |
| Aire Serv Heating & Air Cond Po Box 84903, Seattle 98124 | (206) 625-1016 |
| Aire Serv Heating & Air Cond 1720 4th Ave S, Seattle 98134 | (206) 332-0104 |
| Aireserve Heating & Ac 1720 4th Ave S, Seattle 98134 | (206) 932-4728 |
| Alaska Star Seattle 98125 | (206) 365-8057 |
| All Star Heating & Air Cond Seattle 98119 | (206) 232-7987 |
| Alpha Heating & Air Inc Seattle 98101 | (206) 234-3589 |
| Asap Heating A/C & Appls Seattle 98101 | (206) 398-1540 |
| Best Repair Svc Po Box 33548, Seattle 98133 | (206) 524-2481 |
| Blue Flame Gas Llc 13721 Lake City Way Ne, Seattle 98125 | (206) 368-5644 |
| Burien Natural Gas Svc 153 Sw 154th St, Seattle 98166 | (206) 248-2196 |
| Carrier Building Systems & Svc 3215 S 116th St 133, Seattle 98168 | (206) 439-0097 |
| Cascade Air Conditioning 1544 Nw Ballard Way, Seattle 98107 | (206) 784-3135 |
| Co-Op Air Conditioning & Htg Seattle 98107 | (206) 782-5136 |
| Day & Nite Plumbing & Htg Seattle 98125 | (206) 364-0959 |
| Re-Bath Seattle 98104 | (206) 838-7322 |
| Easton Refrigeration 3844 1st Ave S A, Seattle 98134 | (206) 621-0194 |
| Evergreen Refrigeration Inc 727 S Kenyon St, Seattle 98108 | (206) 763-1744 |
| Dicks Heating & Ac Seattle 98101 | (253) 845-1213 |
| Brennan Heating & Air Cond 4601 S 134th Pl, Seattle 98168 | (206) 362-7665 |
| Goodguys Heating & Cooling 5402 33rd Ave S, Seattle 98118 | (206) 723-2897 |
| Griffis Heating Inc 11463 Rainier Ave S, Seattle 98178 | (425) 454-6848 |
| Four Seasons Heating & Cooling Seattle 98177 | (206) 226-4770 |
| Gas Appliance Svc 4415 Leary Way Nw, Seattle 98107 | (425) 454-2077 |
| Genesee Heating Co Seattle 98101 | (206) 203-6254 |
| Glendale Heating & Oil Co 12462 Des Moines Memorial Dr, Seattle 98168 | (206) 243-7700 |