Proseal Waterproofing & Contracting Inc.
Welland waterproofing firm offering sump pumps, weeping tile, basement waterproofing and foundation crack repair across Niagara, with free estimates.
What they do
Proseal Waterproofing & Contracting installs sump pumps and weeping tile and carries out basement waterproofing and foundation crack repair. Work can be done from inside, by cutting a trench along the basement perimeter, or from outside, by sealing the foundation and laying drainage. The firm also deals with flooded basements and mould. Free estimates are offered, and the business is open seven days a week. Jobs are taken in Welland, St. Catharines, Niagara Falls and Niagara-on-the-Lake.
- Sump pumps
- Weeping tile
- Basement waterproofing
- Foundation crack repair
- Flooded basements
Listed under Basement flooding and sewer backup
Where they work
What we checked
Checked 12 Nov 2026, from public sources.
Not yet verified. We haven’t contacted this business yet. Ask for a written quote before work starts.
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