| Business | Phone |
| Harris Plumbing 276 Harris Ave, Richmond Hill L4E 3M3 | (905) 884-5882 |
| Nor-Line Plumbing & Mechanical 70 Newkirk Rd #7, Richmond Hill L4C 3G3 | (905) 737-5922 |
| Pave Plumbing Contractors 11645 Yonge St, Richmond Hill L4E 3N8 | (905) 737-1262 |
| Pecks Plumbing & Heating 96 Lawrence Ave, Richmond Hill L4C 1Z3 | (905) 884-3296 |
| Plumbing Plus 44 Larratt Lane, Richmond Hill L4C 0E1 | (905) 737-2189 |
| Popular Plumbing Ltd 604 Edward Ave, Richmond Hill L4C 9Y7 | (905) 737-2914 |
| Riva Plumbing Ltd 25 Brodie Dr #8, Richmond Hill L4B 3K7 | (905) 764-2900 |
| Bartman Plumbing Ltd Po Box 122 Stn A, Richmond Hill L4C 4X9 | (905) 884-6995 |
| Stan Mechanical Contractors 100 Mill St, Richmond Hill L4C 4A7 | (905) 883-4175 |
| W Bevan Plumbing 88 Don Head Village Blvd, Richmond Hill L4C 7M8 | (905) 884-8764 |
| Woodruff Plumbing 5 Mccachen St, Richmond Hill L4E 2X5 | (905) 773-0202 |
| Your Community Plumber Inc 17 Maple Grove Ave #A, Richmond Hill L4E 2T9 | (905) 773-7600 |
| East York Mechanical 146 Crosby Ave, Richmond Hill L4C 9N5 | (905) 508-3433 |
| Bruce Clark & Son Plumbing 95 West Beaver Creek Rd, Richmond Hill L4B 1H2 | (905) 763-7365 |
| Comindres Plumbing & Heating 561 Edward Ave #14, Richmond Hill L4C 9W6 | (905) 770-5810 |
| Dual-Temp Mechanical Ltd 10 Houseman Cres, Richmond Hill L4C 7R2 | (905) 508-9553 |