Skip to content
WaterproofingIndex

Sump Pump & Backwater Valve Installers in Oakville, Ranked (2026)

Last updated: By Below-Grade Records Desk

7 sump pump and backwater valve installers cover Oakville, compiled August 2026.

638 Google reviews · median 4.88★ · typical $1,400–$2,400 per installed system (Tornado Plumbing & Drains (Toronto)) · 83% of rated companies at 4.8★ or above · scheduling: year-round; interior work is not weather dependent

Companies

Who does sump pump and backwater valve work in Oakville?

Looking for a sump pump and backwater valve installer in Oakville? WaterproofingIndex has 7 on file, averaging 4.88★ across 638 Google reviews, as of August 2026. Half carry more than 87 Google reviews and half fewer. Full sump pumps & backwater valves cost guide.

Ranking

What decides the order on this page?

A Bayesian-adjusted Google rating orders these 7 sump pump and backwater valve installers, whose median review count is 87. Position is not for sale. How the score is built.

Rules

Permits and subsidies for sump pump and backwater valve work

Permit rules and subsidies do not change between Oakville and the rest of the GTA, so they are answered once, on the sump pumps & backwater valves page.

Coverage

Nearby areas and related work in Oakville