| Business | Phone |
| Waterproofing/Thornhill Contractors/Waterproofing Thornhill,Richmond Hill,Bolton,Woodbridge, Thornhill L3T 1L6 | (416) 251-8465 |
| Waterproofing/Thornhill Contractors/Waterproofing 1-888-474-7101 Thornhill, Markham, Etobicoke, Richmond Hill, Thornhill L3T 7L2 | (888) 474-7101 |
| Aquaseal Basement Waterproofing Thornhill Thornhill,Toronto,Bradford,Brampton, Thornhill L3T 1L6 | (416) 251-8465 |