| Business | Phone |
| Abel Sheet Metal Ltd 6579 Dalrymple Way Nw, Calgary T3A 1S1 | (403) 288-5600 |
| Airmasters Heating Ltd 4045 74 Ave Se #6, Calgary T2C 2H9 | (403) 888-4330 |
| Airstream Heating Ind Ltd 20 Edgemont Crt Nw, Calgary T3A 2N3 | (403) 230-1777 |
| Alberta Furnace & Heating Svc 16 Wellington Pl Sw, Calgary T3C 3C1 | (403) 289-0089 |
| Aspen Heating & Air Cond 6325 11 St Se #16, Calgary T2H 2L6 | (403) 259-2888 |
| Heating Essentials Ltd 21 Highfield Cir Se #16, Calgary T2G 5N6 | (403) 266-3678 |
| Honeywell Limited 5925 12 St Se #17, Calgary T2H 2R2 | (403) 221-2200 |
| Horizon Heating Ltd 666 Goddard Ave Ne #28, Calgary T2K 5X3 | (403) 274-0790 |
| Jaytec Mechanical Svc 2835 23 St Ne #210, Calgary T2E 7A4 | (403) 293-2054 |
| North West Heating 7747 Bowcliffe Cres Nw, Calgary T3B 2S6 | (403) 288-8776 |
| Spire Ventilation Inc 14 Springbank Cres Sw, Calgary T3H 3S8 | (403) 249-1475 |
| Spring's Servicing & Htg Ltd 8035 4a St Sw, Calgary T2V 1A4 | (403) 253-1888 |
| Stang Home Heating 1319 45 Ave Ne #5, Calgary T2E 2P3 | (403) 219-3055 |
| Stang Home Heating 39 Falshire Terr Ne, Calgary T3J 3B2 | (403) 803-4057 |
| Tar Sands Sheet Metal (1983) Ltd. A7-624 Beaver Dam Road NE, Calgary T2K 4W6 | (403) 291-3072 |
| Trane Canada Inc 5925 12 St Se #1, Calgary T2H 2M3 | (403) 301-0090 |
| Two Guys Hvac Ltd 63 Heston St Nw, Calgary T2K 2C3 | (403) 291-5430 |
| Boyce Heating Ltd 321 37 Ave Ne #1, Calgary T2E 6P6 | (403) 230-5248 |
| Calgary Tinsmith Ind Ltd 616 35 Ave Ne, Calgary T2E 2L1 | (403) 276-5306 |
| Carmichael Engineering Ltd 6430 2 St Se, Calgary T2H 1J4 | (403) 255-3322 |
| Classic Heating Ltd 48 Hawkhill Way Nw, Calgary T3G 3K1 | (403) 239-5890 |
| Conematic Heating Systems 508 24 Ave Sw #145, Calgary T2S 0K4 | (403) 215-5966 |
| County Heating Rr 5 Stn Lcd 1, Calgary T2P 2G6 | (403) 236-2201 |
| Craig's Heating & Sheet Metal 319 Manora Rd Ne, Calgary T2A 4R7 | (403) 273-4592 |
| Eagle Eye Mechanical Ltd 1003 55 Ave Ne #K, Calgary T2E 6W1 | (403) 717-0333 |
| Eventemp Heating & Air-Cond Po Box 30088 Rpo Chinook, Calgary T2H 2V8 | (403) 651-8198 |
| Franko's Heating & Ac Ltd 164 Douglas Woods Dr Se, Calgary T2Z 2E4 | (403) 236-3266 |
| Gas Tech Svc Co 521 58 Ave Se #B, Calgary T2H 0P7 | (403) 319-2363 |