| Business | Phone |
| Aquaseal Basement Waterproofing London London,Woodstock,Niagara Falls,Hamilton, London N5V 3M2 | (519) 644-9088 |
| Waterproofing/London Contractors/Waterproofing 1-800-NO-LEAKS London,Woodstock,Niagara Falls,Hamilton, London N5V 3M2 | (519) 644-9088 |
| Waterproofing/London Contractors/Waterproofing 1-888-474-7101 London, Woodstock, St.Thomas, Stratford, London N0L 2G0 | (888) 474-7101 |