| A.M.T. Mechanical Ltd. | 601 Edgeley Blvd, Unit 6, Concord, ON L4K 4G2 |
| Active Mechanical | 89 Shorncliffe Rd, Toronto, ON M8Z 5K3 |
| Angelini Plumbing & Heating Limited | 144 Rivalda Rd, Weston, ON M9M 2M8 |
| Anvi Services Ltd. | 30 Hale Rd, Unit 23, Brampton, ON L6W 4N9 |
| Apex Plumbing and Drains Inc. | 2769 Concession Rd 3, RR #1, Palgrave, ON L0N 1P0 |
| Attard Plumbing Ltd. | 44 Meadowcrest Rd, Etobicoke, ON M8Z 2Y7 |
| Battershell Plumbing & Heating Ltd. | 254 Queen St, Brampton, ON L6X 1B1 |
| Bay Point Mechanical and S. Breda Plumbing | 45 Rodinea Rd, Unit 6, Maple, ON L6A 1B3 |
| Black & McDonald Limited | 31 Pullman Crt, Scarborough, ON M1X 1E4 |
| Brady & Seidner Associates Ltd. | 801 Alness St, Toronto, ON M3J 2H8 |
| Bruno Plumbing & Contracting Inc. | 190 Creditstone Rd, Concord, ON L4K 1P3 |
| C.M.S. Commercial Mechanical Services | 2721 Markham Rd, Unit 10, Scarborough, ON M1X 1L5 |
| Cardinal Plumbing | 32 Park St, Brampton, ON L6X 1T9 |
| Concern Plumbing & Drain Services | 66 Cassander Cres, Unit 66, Brampton, ON L6Z 1Z2 |
| Dasa Mechanical Int. Ltd. | 8301 Jane St, Unit 7,8, Concord, ON L4K 5P3 |
| Dolvin Mechanical Contractors Limited | 52 High Meadow Pl, North York, ON M9L 2Z5 |
| Downsview Plumbing & Heating Limited | 4299 Queen St, Brampton, ON L6T 5V4 |
| Drain King Plumbers | 65 Winston Park Blvd, Toronto, ON M3K 1C2 |
| Draincom Inc. | 1307 Kamato Rd, Mississauga, ON L4W 2M2 |
| Eama Inc | 44 Steinway, Unit 10, Etobicoke, ON M9W 6Y7 |
| Eastgate Plumbing Inc. | 52 High Meadow Pl, North York, ON M9L 2Z5 |
| Elitrex Plumbing Ltd. | 120 Sharer Rd, Vaughan, ON L4L 8P4 |
| Elmore Archdekin Plumbing & Heating Limited | 55 Rutherford Rd, Unit 203, Brampton ON L6W 3J3 |
| Forrest Mechanical Inc. | 333 Wyecroft Rd, Unit 4, Oakville, ON L6K 2H2 |
| Fred Kau Plumbing & Heating Limited | 38 McBrine Pl, Unit 1, Kitchener, ON N2R 1G8 |
| GTA Plumbing Ltd. | 3995 Sladeview Cres, Unit 6, Mississauga, ON L5L 5Y1 |
| GWR Mechanical Contracting Inc. | Box #631, Bolton, ON L7E 5T4 |
| Hager Industries Inc. | 425 Lake Ave N, Hamilton, ON L8E 3C1 |
| Hi-Rise Mechanical Contracting Inc. | 60 Saramia Cres, Unit 7, Vaughan, ON L4K 4J7 |
| Hi-Tech Plumbing | 241 Edgeley Blvd, Unit 12, Concord, ON L4K 3Y6 |
| ID Mechanical Inc. | 131 Whitmore Rd, Unit 4, Woodbridge, ON L4L 6E3 |
| Insight Technologies Construction Corp. | 6817 Steeles Ave, Toronto, ON M9V 4R9 |
| J.M.R. Electric Ltd. | 301 Thames Rd, Exeter, ON N0M 1S3 |
| Jaywal Mechanical Ltd. | 13796 Hurontario St, Caledon, ON L7C 2B8 |
| Kelson | 2 Bales Dr, Sharon, ON L0G 1V0 |
| Kirk Mechanical Limited | 1451 Grahams Lane, Burlington, ON L7S 1W5 |
| LPI Mechanical Inc. | 3 Brewster Rd, Unit 15, Brampton, ON L6T 5G9 |
| MDF Mechanical Ltd. | 2100 Steeles Ave, Brampton, ON L6T 1A7 |
| Meadowbrook Construction Inc. | 151 Superior Blvd, Unit 8, Mississauga, ON L5T 2L1 |
| Nekison Engineering & Contractors Ltd. | 17 St. Lawrence Ave, Etobicoke, ON M8Z 5T8 |
| Olar Mechanical Contracting | PO Box 37, Inglewood, ON L7C 3L6 |
| Omico Mechanical Limited | 80 Bass Pro Mills Dr, Unit 1, Concord, ON L4K 5W9 |
| P.H. Atlantic Plumbing & Heating | 332 Maplehurst Ave, North York, ON M2N 3C6 |
| Peel Mechanical Contractors Limited | 20 Regan Rd, Unit 6, Brampton, ON L7A 1C3 |
| Peel Plumbing & Mechanical Ltd. | 30 Baywood Rd, Unit 9, Etobicoke, ON M9W 3Z2 |
| Pipe - All Plumbing & Heating Ltd. | 141 Strada Dr, Woodbridge, ON L4L 5V9 |
| Plan Group Inc. | 2740 Steeles Ave, Vaughan, ON L4K 4T4 |
| Plumbing X-Spurts | 18 Wexford Rd, Brampton, ON L6Z 2V8 |
| Plumbs Up Plumbing & Drains Inc. | 32 St Pauls Pl, Orangeville, ON L9W 0A3 |
| Powerful Group of Companies Inc. | 1715 Meyerside Dr, Unit 1, Mississauga, ON L5T 1C5 |
| Price Plumbing & Heating Ltd. | 42 Regan Rd, Unit 4, Brampton, ON L7A 1B3 |
| Riva Plumbing Limited | 498 Markland St, Unit 3, Markham, ON L6C 1Z6 |
| Sentinel Plumbing Inc. | 44 Milford Ave, North York, ON M6M 2V8 |
| The State Group Inc. | 3206 Orlando Dr, Mississauga, ON L4V 1R5 |
| Trademark Plumbing & Heating Ltd. | 30 Intermodal Dr, Unit 50, Brampton, ON L6T 5K1 |
| Van Mechanical Contractors Inc. | 257 Deerhurst Dr, Brampton, ON L6T 5K3 |
| Vic's Group Inc. | 41 Shorting Rd, Toronto, ON M1S 3V3 |