| Business | Phone |
| Abraun Holdings Ltd 70 Pacific Crt #22, London N5V 3R5 | (519) 659-4444 |
| A A Action Drainage & Plumbing 304 Hudson Dr, London N5V 1E2 | (519) 452-1684 |
| A-City Drainage & Sewer Svc 1256 Hamilton Rd, London N5W 1B2 | (519) 451-5131 |
| Adams Plumbing 26 Montclair Ave, London N6H 3V1 | (519) 474-7055 |
| B & S Plumbing & Heating 350 Mcnay St, London N5Y 1M1 | (519) 451-8224 |
| Greenbeck Plumbing & Heating 780 Grenfell Dr, London N5X 2C8 | (519) 660-8800 |
| Griffin Plumbing Ltd 4158 Raney Cres, London N6L 1C3 | (519) 663-8008 |
| H Sapala Plumbing & Heating 52 Edgar Dr, London N6G 1K1 | (519) 434-6303 |
| Henry Lawton Plumbing 884 Elias St, London N5W 3P2 | (519) 850-8883 |
| Hesselmans Plumbing & Heating 525 Scotland Dr, London N6N 1N1 | (519) 644-1317 |
| Hessey Bros Plumbing 100 St George St, London N6A 2Z8 | (519) 433-0851 |
| Hill Plumbing & Heating 67 Golfview Cres, London N6C 5N4 | (519) 681-2027 |
| Household Plumbing 300 William St, London N6B 3C4 | (519) 438-1121 |
| Hyde Park Plumbing & Htg Ltd 1917 Blue Heron Dr, London N6H 5L9 | (519) 657-3550 |
| Lin-Roche Holdings 120 Gardenwood Dr, London N6J 3Z9 | (519) 471-8411 |
| London Plumbing & Heating Ltd 1568 Hillside Dr, London N6G 4M6 | (519) 438-2382 |
| Mr Rooter 158 Hamilton Rd, London N6B 1N5 | (519) 451-7772 |
| O'Drowsky Plumbing & Heating 354 Neptune Cres, London N6M 1A1 | (519) 455-5781 |
| Old South Plumbing & Heating 210 Ambleside Dr, London N6G 4P5 | (519) 433-4577 |
| Paton Bros Ltd 1052 Brydges St, London N5W 2B4 | (519) 455-4910 |
| Peter Lawton & Son Plumbing 37 Charles St, London N6H 1H1 | (519) 434-2306 |
| Practical Plumbing Co Ltd 1525 Hyde Park Rd, London N6H 5L4 | (519) 471-8392 |
| R W Pope & Sons Ltd 4865 Colonel Talbot Rd, London N6P 1P7 | (519) 652-3133 |
| Randy Devries Plumbing 117 Weston St, London N6C 1R3 | (519) 672-4912 |
| Barrett Mechanical 645 Newbold St, London N6E 2T8 | (519) 668-7204 |
| Best Plumbing & Draining Contr 431 Newbold St, London N6E 1K2 | (519) 438-6565 |
| Black & Mc Donald Ltd 97 Bessemer Rd #G, London N6E 1P9 | (519) 471-7995 |
| Rose Plumbing & Heating Ltd 462 Grey St, London N6B 1H3 | (519) 439-3014 |
| S W Atchison Plumbing & Htg 4186 Raney Cres, London N6L 1C3 | (519) 652-0673 |
| Salmon Plumbing & Heating 142 Clarke Rd, London N5W 5E1 | (519) 451-8910 |
| Sea-Way Mechanical Inc 610 Newbold St #12, London N6E 2T6 | (519) 686-3967 |
| Shoreline Plumbing & Heating 49 Forbes St, London N6J 1L4 | (519) 645-3111 |
| Smink Plumbing 431 Newbold St, London N6E 1K2 | (519) 649-5074 |
| Soan Mechanical Ltd 11 Bayview Crt, London N5W 5W4 | (519) 455-1530 |
| Steve Young Plumbing & Htg 281 Fleming Dr, London N5V 4Y7 | (519) 659-3676 |
| Stevens Plumbing & Htg 261 Scotland Dr, London N6N 1N1 | (519) 644-0807 |
| Taps Of London Plumbing Ltd 142 Harley St, London N5Y 2C2 | (519) 672-0210 |
| Tim Metcalfe Plumbing 55 Cobblestone Rd, London N5Y 5M7 | (519) 455-0404 |
| Walter Loretan Plbg & Htg Ltd 545 Gordon Ave, London N6J 2V9 | (519) 686-4771 |
| Warren Carey Plumbing 300 William St, London N6B 3C4 | (519) 452-1720 |
| Brouwer Plumbing & Heating Ltd 833 Central Ave, London N5W 3R1 | (519) 672-1631 |
| Completely Dry Drainage 2081 Piper Lane, London N5V 3S5 | (519) 455-0168 |
| Ctm Plumbing & Heating 337 Burlington Cres, London N5Z 3G8 | (519) 686-9530 |
| Fabian's Plumbing & Heating 38 September Cres, London N6K 4E4 | (519) 657-7132 |
| G E Thompson Plumbing Ltd 407 Stephen St, London N6K 2N4 | (519) 319-5035 |
| Greg Harter Plumbing Harley Street London ON, London N5Y 2C3 | (519) 204-7102 |
| Greg Harter Plumbing Harley Street London ON, London N5Y 2C3 | (519) 204-7102 |