| Business | Phone |
| Jack Hamill Automatic Heating 54 Devere Dr, Guelph N1G 2T4 | (519) 824-5543 |
| Kenwood Heating & Air Cond Svc 38 Bedford Rd, Guelph N1H 6J2 | (519) 821-4900 |
| Kool Fab Mechanical 45 Lewis Rd, Guelph N1H 1E9 | (519) 823-7733 |
| Sharp Heating 354 Stevenson St N, Guelph N1E 5B9 | (519) 763-1516 |
| Stan T Aiken Residential Htg 119 Mountford Dr, Guelph N1E 4G2 | (519) 821-4592 |
| Fortress Group Inc 55 Regal Rd, Guelph N1K 1B6 | (519) 767-1731 |