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.

Window / door fitters in Canada

1,650 window / door fitters across Canada, each compared on their reviews, credential evidence and evidence from named public sources. Independent evidence, no ads and no paid placement. Add your area below to see who's near you.

No ads · No paid placement · Ranked on evidence only

Window / Door Fitters

Showing the top 12 of 1,650 window / door fitters, sorted by Trust Score.

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Only 1 of these 12 contractors has a direct way to get in touch. Open the other profiles to see the sources that list them. Browse all window / door fitters

Find window / door fitters in Canada

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What to check when hiring window / door fitters 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.

  • Be wary of high-pressure 'today-only' discounts and a salesperson who won't leave. A reputable window or door firm gives you a written, itemized quote you can take away and compare against others.
  • Never pay the full price up front; a modest deposit with the balance on completion is normal. Ask what deposit protection or insurance-backed guarantee you get if the firm stops trading before fitting.
  • Get the specification in writing (frame material, the glazing units and their energy rating, and any trickle vents) so you can check you got what you paid for.
  • 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.

How to judge a window / door fitter

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

  • Replacing windows or doors generally needs a municipal building permit (egress, header and structural-opening rules apply), and enlarging an opening is structural work: confirm the installer arranges the permit and inspection.
  • For energy and any rebate eligibility, look for ENERGY STAR certified products rated for your climate zone, and ask about the air-sealing and flashing detail, not just the unit.
  • Get a written scope: product brand and rating, who removes and disposes of the old units, and how the new openings are sealed and finished inside and out.
  • Check liability insurance, a workmanship warranty separate from the manufacturer warranty, and a current WCB/WSIB clearance.

Warning signs of a rogue contractor

  • Enlarges openings or alters headers without a permit.
  • High-pressure 'today-only' pricing typical of some replacement-window sales, or a large up-front deposit.
  • No detail on flashing and air-sealing: the install, not just the window, stops leaks and drafts.
  • No proof of insurance, or no separate workmanship warranty.

Questions to ask before you hire

  • Does this need a building permit, and will you arrange it and the inspection?
  • Are the products ENERGY STAR certified for my climate zone?
  • How will you flash and air-seal the openings, and who disposes of the old units?
  • What's the workmanship warranty, and do you carry insurance and a WCB/WSIB clearance?

Frequently asked questions

How do I choose a trustworthy window / door fitter?
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 window / door fitter backed by several named sources is harder to fake than one found in only one place.
Does MyTrustedTraders rank or recommend window / door fitters for payment?
No. There are no ads and no paid placement. Window / door fitters 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 window / door fitter?
Confirm credentials and insurance directly with the window / door fitter, 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