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

Last updated: By Below-Grade Records Desk

56 sump pump and backwater valve installers cover Toronto, compiled August 2026.

15,500 Google reviews · median 4.91★ · typical $1,400–$2,400 per installed system (Tornado Plumbing & Drains (Toronto)) · 91% 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 Toronto?

  3. Strong Plumbing Inc3

    Strong Plumbing Inc

    87/100 WaterproofingIndex Score

    0.3 km from Financial District centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  5. Top One Plumbing Inc.5

    Top One Plumbing Inc.

    83/100 WaterproofingIndex Score

    1.6 km from Willowdale centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  7. DrainWorks Plumbing7

    DrainWorks Plumbing

    81/100 WaterproofingIndex Score

    0.3 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  9. Absolute Draining & Plumbing9

    Absolute Draining & Plumbing

    79/100 WaterproofingIndex Score

    1.7 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  10. Saving Plumbing10

    Saving Plumbing

    79/100 WaterproofingIndex Score

    2.2 km from Scarborough Town Centre centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  11. DrainRooter Plumbing11

    DrainRooter Plumbing

    78/100 WaterproofingIndex Score

    0.8 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  12. Advanced Plumbing & Drains12

    Advanced Plumbing & Drains

    78/100 WaterproofingIndex Score

    0.2 km from The Junction centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it has been going since 2005

    Its own website describes below-grade water work

    Request a quote
  14. Harb Plumbing14

    Harb Plumbing

    75/100 WaterproofingIndex Score

    3.7 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it has been going since 1974

    Its own website describes below-grade water work

    Request a quote
  19. CJ Drain & Plumbing19

    CJ Drain & Plumbing

    72/100 WaterproofingIndex Score

    0.6 km from The Kingsway centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says about 13 years going

    Its own website describes below-grade water work

    Request a quote
  20. Drain King Plumbers Toronto20

    Drain King Plumbers Toronto

    72/100 WaterproofingIndex Score

    6.3 km from Willowdale centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  21. Tornado Plumbing & Drains21

    Tornado Plumbing & Drains

    71/100 WaterproofingIndex Score

    0.9 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  24. John The Plumber24

    John The Plumber

    70/100 WaterproofingIndex Score

    0.5 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  25. Tornado Plumbing & Drains25

    Tornado Plumbing & Drains

    70/100 WaterproofingIndex Score

    2.2 km from Forest Hill centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is with Better Business Bureau

    Its own website describes below-grade water work

    Request a quote
  26. Rivergate plumbing and Drain26

    Rivergate plumbing and Drain

    70/100 WaterproofingIndex Score

    2.7 km from Scarborough Town Centre centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  27. Anta Plumbing And Drain Toronto27

    Anta Plumbing And Drain Toronto

    69/100 WaterproofingIndex Score

    0.6 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  29. Sam plumbing services29

    Sam plumbing services

    68/100 WaterproofingIndex Score

    4.1 km from Scarborough Town Centre centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  31. North York Plumbing31

    North York Plumbing

    68/100 WaterproofingIndex Score

    3.2 km from York Mills centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  33. Priority Plumbing & Drains33

    Priority Plumbing & Drains

    67/100 WaterproofingIndex Score

    0.8 km from The Junction centre

    Sump Pumps & Backwater Valves
    • Says it has been going since 2001

    Its own website describes below-grade water work

    Request a quote
  34. UPR Drains and Waterproofing34

    UPR Drains and Waterproofing

    66/100 WaterproofingIndex Score

    5.4 km from Islington-City Centre West centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is insured

    Its own website describes below-grade water work

    Request a quote
  36. Max Wolf Construction36

    Max Wolf Construction

    65/100 WaterproofingIndex Score

    3.9 km from York Mills centre

    Sump Pumps & Backwater Valves
    • Says it is licensed
    • Says it is bonded

    Its own website describes below-grade water work

    Request a quote
  42. One Call Plumbers42

    One Call Plumbers

    60/100 WaterproofingIndex Score

    6.2 km from Scarborough Town Centre centre

    Sump Pumps & Backwater Valves

    Its own website describes below-grade water work

    Request a quote
  45. Premier Plumbing45

    Premier Plumbing

    58/100 WaterproofingIndex Score

    1.3 km from Leaside centre

    Sump Pumps & Backwater Valves

    Its own website describes below-grade water work

    Request a quote
  55. Leaky Basement55

    Leaky Basement

    52/100 WaterproofingIndex Score

    0.9 km from Leaside centre

    Sump Pumps & Backwater Valves

    Its own website describes below-grade water work

    Request a quote

Below are the 56 sump pump and backwater valve installers operating in Toronto, whose Google ratings average 4.91★ over 15,500 reviews. The dataset was last rebuilt in August 2026. Half carry more than 132 Google reviews and half fewer. Full sump pumps & backwater valves cost guide.

Ranking

What decides the order on this page?

The WaterproofingIndex Score orders these 56 sump pump and backwater valve installers, whose median review count is 132. 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 Toronto 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 Toronto