| Business | Phone |
| Gimco Limited 43 Ferrier St, Markham L3R 3K6 | (416) 798-7164 |
| Mgs Mechanical 4116 Highway 7, Markham L3R 1L6 | (905) 475-2334 |
| R N Mc Watters Plumbing 160 Konrad Cres #9, Markham L3R 9T9 | (905) 475-9525 |
| T Beck Mechanical Svc 20 Liebeck Cres, Markham L3R 1Y5 | (905) 470-0234 |
| D S Martin Mechanical Ltd 16 Maple St, Markham L3P 2T6 | (905) 513-1066 |
| D S Martin Mechanical Ltd 176 Bullock Dr #12, Markham L3P 7N1 | (905) 471-4097 |