Early access in Canada. We are still building our directory for Canada. The profiles here show real public evidence from named sources, but coverage is limited and our checks are not yet as complete as on our UK site. Treat this as a preview, not a full picture.

Drainage contractors in Canada

202 drainage contractors across Canada, each compared on how fast they respond, their reviews and credential evidence. Independent evidence, no ads and no paid placement. Add your area below to find someone reliable who can come out now.

No ads · No paid placement · Ranked on evidence only

Drainage Contractors

Showing the top 12 of 202 drainage contractors, sorted by Trust Score.

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What to check when hiring drainage contractors in Canada

MyTrustedTraders ranks on independent public evidence. No ads, no paid placement. Use these checks alongside the evidence on each profile before you decide who to contact.

  • Trade licensing in Canada is set by each province or territory. Electrical, gas and plumbing are licensed trades almost everywhere (for example ESA for electrical and TSSA for gas in Ontario), so check your provincial regulator that the contractor is certified for the work before you hire.
  • A construction lien is a real risk: in every province an unpaid subcontractor or supplier can register a lien against your home even if you already paid the main contractor. Hold back the statutory amount (commonly around 10%) and get signed lien waivers as you pay.
  • Confirm they cover your area and can actually come out in your timeframe before anything else.
  • Read recent reviews for reliability and turning up on time, not only the quality of the work.
  • Agree the call-out fee up front, and be wary of large upfront deposits for an emergency job.

How to judge a drainage contractor

Independent, no-ads guidance. The trade-specific checks that matter most, the warning signs, and what to ask before you hire. Use it alongside each contractor’s public evidence above.

Verify before you hire

  • Work on the sanitary or storm sewer connection, weeping tile or a backwater valve usually needs a municipal permit and is plumbing work: confirm the contractor pulls the permit and that a licensed plumber does work on the building drain.
  • Before any digging, a utility locate must be requested (Ontario One Call, or your province's one-call service) so buried gas, hydro and water lines are marked: confirm they'll arrange it.
  • Many municipalities offer backwater-valve or downspout-disconnection subsidies: ask whether the work qualifies and is done to the city's standard.
  • Check liability insurance and a current workers' compensation clearance (WSIB/WorkSafeBC/WCB) for excavation work.

Warning signs of a rogue contractor

  • Digs to the sewer or replaces a drain connection without a permit or a licensed plumber.
  • Starts excavating without arranging a utility locate.
  • No proof of insurance or WCB coverage, or a large cash deposit up front.
  • Vague scope with no detail on depth, backfill, restoration or warranty.

Questions to ask before you hire

  • Will you pull the municipal permit, and is the building-drain work done by a licensed plumber?
  • Will you arrange a utility locate before digging?
  • Does the work qualify for any municipal backwater-valve or disconnection subsidy?
  • Do you carry liability insurance and a current WCB/WSIB clearance?

Frequently asked questions

How do I choose a trustworthy drainage contractor?
Compare the public evidence on each profile: how many independent reviews they have and across how many named sources, the rating and how recent it is, any credential evidence, and the company status. A drainage contractor backed by several named sources is harder to fake than one found in only one place.
Does MyTrustedTraders rank or recommend drainage contractors for payment?
No. There are no ads and no paid placement. Drainage contractors are ranked only by the strength of independent public evidence. No one can pay to rank higher, add a badge, or change their reviews.
Where do the reviews come from?
They're imported from named public review sources and always shown with the source named. They aren't reviews written on MyTrustedTraders. We cross-check the same business across sources rather than creating new reviews.
What should I check before hiring a drainage contractor?
Confirm credentials and insurance directly with the drainage contractor, get a written quote, and run the Cowboy Checker on the business first. MyTrustedTraders helps you shortlist on the evidence. It doesn't replace your own checks before you hire.

More ways to check who to trust

Free, independent checks. No ads, no paid placement.

  • Rogue Contractor Check

    Spot the warning signs of a dishonest business before you hire.

  • Company Health Check

    Check whether the company behind a business is active, dissolved, or in liquidation.

  • Licence Check

    A licence number from a van or quote, checked against every public register included here in one search.

Or browse contractors by tradeAll checks and tools