| Business | Phone |
| Airco 262 Victoria St, Sudbury P3C 1K4 | (705) 673-2210 |
| Honeywell Limited 1500 Fairburn St, Sudbury P3A 1N7 | (705) 566-6735 |
| Jem Air Conditioning 269 Levesque St, Sudbury P3B 3T3 | (705) 524-1300 |
| Piper Mechanical Systems 208 Walnut St, Sudbury P3C 1L7 | (705) 670-8555 |
| Trane Canada 760 Notre Dame Ave, Sudbury P3A 2T4 | (705) 525-1323 |