Vaillancourt Plumbing & Drains
Plumbing and drain company in Oshawa, Ontario, that installs and repairs backwater valves and sump pumps and clears drains to help keep basements dry. It serves Durham Region.
What they do
The company installs and repairs backwater valves and sump pumps, and clears drains, so basement flooding protection is its main work. A backwater valve sits on the sanitary sewer line in a basement and helps stop sewage from backing up into the home, and the firm also inspects existing valves. Frozen pipe thawing and repair is offered as well. Vaillancourt Plumbing & Drains provides free estimates and emergency service, and it covers Oshawa, Whitby, Ajax and Pickering. Family-owned since 1955, the business is now in its second generation. Its residential plumbing work carries a 14-month guarantee.
- Backwater valves
- Sump pumps
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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