| Business | Phone |
| Aljon Plumbing & Heating Ltd 2116 29 Ave Sw, Calgary T2T 1N5 | (403) 229-2822 |
| Hth Heatech Inc 8916 44 St Se, Calgary T2C 2P6 | (403) 279-1990 |
| Midsun Plumbing & Heating 432 53 Ave Sw, Calgary T2V 0B7 | (403) 640-0637 |
| Nature's Ultimate Ltd Rr 6 Lcd 9, Calgary T2M 4L5 | (403) 269-8511 |
| Technical Control Svc Ltd 1609 14 St Sw #3, Calgary T3C 1E4 | (403) 245-3757 |
| Fire Rite Mechanical Ltd 68 Capri Ave Nw, Calgary T2L 0H1 | (403) 289-0050 |
| Calgary Hydronics Solutions Mobile Service, Calgary T2Z 1X4 | (403) 796-4768 |
| Quality Combustion & Controls Ltd 834, 3545 - 32 Ave NE, Calgary T1Y 6M6 | (403) 936-0065 |