| Business | Phone |
| York Sheet Metal Ltd 112 Rivalda Rd, North York M9M 2M8 | (416) 742-8242 |
| J W Duct Cleaning Svc 86 Pinemore Cres, North York M3A 1W6 | (416) 445-2133 |
| Biovac System Inc 789 Don Mills Rd #500, North York M3C 1T5 | (416) 424-6656 |
| Royal Duct Cleaners 2646 Victoria Park Ave, North York M2J 4A6 | (416) 756-3720 |
| Super Clean Systems 1682 Victoria Park Ave #A, North York M1R 1P7 | (416) 757-5717 |