June 18, 2025

Backwater Valves: A Vaughan Homeowner's Guide

How backwater valves protect your basement, and what rebates are available in Vaughan.

If your Vaughan home has ever experienced a sewer backup — or if you're finishing a basement — a backwater valve is one of the best investments you can make.

How they work

A one-way flap installed on your main sewer line. Water flows out normally; if the city sewer surcharges, the flap closes and blocks reverse flow.

Vaughan rebate program

The City of Vaughan currently offers rebates toward backwater valve installation. We handle the paperwork so you don't have to.

Install day

We saw-cut a small section of basement floor, install the valve chamber, backfill and patch. Total time: 1–2 days. Water is off for a few hours.

More plumbing tips

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