| Business | Phone |
| Basement Doctor Oshawa 1-888-750-0848 ,,, Oshawa L1H 1A6 | (888) 750-0848 |
| Waterproofing/Oshawa Contractors/Waterproofing 1-800-NO-LEAKS Oshawa,Whitby,Ajax,Pickering, Oshawa L1J 4M8 | (905) 725-3754 |
| Basement Leaks Fixed Inc. 509 Waverly St. N., Oshawa L1J5W5 | (905) 995-1590 |