| Business | Phone |
| Waterproofing/Richmond Hill Contractors/Waterproofing Richmond Hill,Markham,Newmarket,Vaughan,Thornhill, Richmond Hill L4E 3M3 | (905) 737-0158 |
| Waterproofing/Richmond Hill Contractors/Waterproofing 1-888-474-7101 Richmond Hill, Vaughan, Maple, Woodbridge, Richmond Hill L4S 1P3 | (888) 474-7101 |
| Aquaseal Basement Waterproofing Richmond Hill Richmond Hill,East York,Kleinburg,Unionville, Richmond Hill L4E 3M3 | (905) 737-0158 |