| Business | Phone |
| Adko Furnace Svc 5025 23 Ave Se #4, Calgary T2B 2J7 | (403) 272-0422 |
| Hygiena/Safeair 3616 14a St Se, Calgary T2G 3L2 | (403) 265-1753 |
| Quality Furnace Cleaners 307 Silver Valley Rd Nw, Calgary T3B 4B8 | (403) 266-3878 |
| Western Heating & Furnace Clnr 606 Oakhill Pl Sw, Calgary T2V 3X8 | (403) 251-7777 |
| Revy Home & Garden Warehouse 9630 Macleod Trail Se, Calgary T2J 0P7 | (403) 253-5533 |
| Stan's Furnace Cleaning & Rprs 2231 15a St Se, Calgary T2G 3N2 | (403) 279-3997 |
| T & R Sales 6020 Trollinger St Ne, Calgary T2K 3W6 | (403) 730-7902 |
| Western Canadian Furnace Co 495 36 St Ne #241, Calgary T2A 6K3 | (403) 531-6181 |
| Willson Furnace & Duct Clng 108 Silvercreek Dr Nw, Calgary T3B 4G8 | (403) 286-0842 |
| C J Furnace Cleaning 6220 17 Ave Se #345, Calgary T2A 7H4 | (403) 207-4424 |
| Castle Maintenance Svc 2743 Signal Hill Dr Sw, Calgary T3H 2L6 | (403) 250-5172 |
| Clean-All 127 Millview Gdns Sw, Calgary T2Y 3Y3 | (403) 256-0104 |
| Davey's Furnace Cleaning 144 Haysboro Cres Sw, Calgary T2V 3G3 | (403) 273-7160 |
| Efficiency Furnace Svc 2203 Halifax Cres Nw, Calgary T2M 4E1 | (403) 289-5790 |
| Calgary Hydronics Solutions Mobile Service, Calgary T2Z 1X4 | (403) 796-4768 |
| Action Furnace 3829 - 15 A Street, S.E., Calgary T2G3N7 | (403) 288-4004 |