McDowell Drain & Waterproofing Niagara
Drainage and basement waterproofing firm based in Niagara-on-the-Lake, handling backwater valves, sump pumps and French drains to keep flood water out of basements across the Niagara area.
What they do
The company installs backwater valves, sump pumps and French drains, and carries out basement waterproofing and foundation crack repair. It also clears blocked drains, repairs sewer lines and handles sewage clean-up after a backup. Based in Niagara-on-the-Lake, it serves St. Catharines, Niagara Falls and Thorold, along with other towns in the area. Emergency service is offered for burst pipes and sewer backups. Free estimates are offered online. The business has operated for over 45 years and is family-owned, and its drain replacement and basement waterproofing work carries a 20 year warranty.
- Backwater valves
- Sump pumps
- French drains
- Weeping tile
- Basement waterproofing
- Foundation crack repair
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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