Pro Business

Sangster Windows and Doors

Toronto Window Installers
Ranked #1 in Toronto | Grade A+
5.00 (147 reviews)

Sangster Windows and Doors

Local window and door installer focused on fit, finish, and reliable scheduling. From single replacements to multi-opening projects, the team aims for clean lines, weatherproofing, and a low-disruption experience.

Why Homeowners Choose This Business

Local knowledge of Toronto homes, careful measurements, and tidy installs. Clear communication on scheduling and scope. Strong customer feedback and consistent project follow-through.

Service Area

Toronto east end and surrounding neighbourhoods, with projects considered across the city.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Ranks among the top local businesses in this market.
  • Performs at or above the local average for Google rating.
  • Shows review activity that is competitive for this local market.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Service
  Supplier
  Installations
  window installation
  Repairs
  window replacement
  Door installation
  Entry doors
  Patio Sliding Doors
  Casement windows
  Awning windows
  double hung windows
  Bay and bow windows
  Exterior Capping
  weatherstripping
  Window repair adjustments

Services include replacement windows, new window installations, entry and patio doors, sliding doors, casement and awning windows, double-hung and slider windows, bay and bow windows, exterior trim and capping, hardware and weatherstripping, and basic repair or adjustment when feasible.


Recent Reviews

5.00

(Based on 147 reviews)

Customers highlight responsive communication, neat installations, and smooth project coordination. Many note improved comfort and appearance after window or door upgrades.

Google Review
Donna Parisella on Sangster Windows and Doors

Lucas and team installed my door on a very cold day in January.
I was very impressed with the installation - the attention to detail and professionalism was outstanding.
I am a very happy customer and highly recommend using Lucas for any door / window installation.

Google Review
Christina McAllister on Sangster Windows and Doors

Lucas and team were great to work with from the initial visit / quote experience to the final install day for 5 windows and 1 door. Solid communication throughout and we are very happy with the completed work.

Lucas and his team installed our front and side doors, as well as the storm door. Through out the whole process, Lucas was extremely professional and easy to work with. The doors look amazing and we have received so many compliments from our Leaside neighbours.

Google Review
Jennifer Chen on Sangster Windows and Doors

The team did a great job installing windows and backdoor in our house, both efficiently and cleanly. Lucas was very responsive throughout the whole process and the team was very professional.

We would recommend them to our friends and neighbours and reach out for future installations if required.

Google Review
Nicole Martin on Sangster Windows and Doors

This is the second time we’ve used Sangster Windows and Doors, and we couldn’t be happier! They’ve installed 12 windows, a bay window, a storm and entry door, plus two sets of patio doors for us.

Lucas and his crew are awesome — professional, friendly, and super respectful of our home. They deliver exactly what they promise, on time, with no hidden costs or pushy upselling. Lucas is honest and upfront about what’s needed and what’s just a nice extra.

We’re thrilled with the quality of the products and how smooth the whole process was. Highly recommend Sangster Windows and Doors — we’ll definitely be calling them again to finish the rest of our windows!



Frequently Asked Questions

They install a range of replacement windows, including casement, awning, double-hung, sliders, bay, and bow units. They also handle entry, storm, and patio sliding doors with associated trim and capping.

Yes, consultations are available to discuss goals, styles, and timelines. Estimates are prepared after measurements and a review of product options.

Most single replacements are completed in a day or less, depending on access and finishing needs. Larger projects and custom sizes may require additional lead time for ordering and coordinated installation.

Yes, they recommend products and installation methods that support better sealing and insulation. Proper measurements, flashing, and capping help reduce drafts and improve overall performance.

Yes, removal and disposal of old windows or doors can be included as part of the service. The crew cleans the work area and confirms operation of new units before completion.
 Verified Listing

Opening Hours


  • Monday 8:00 AM – 8:00 PM
  • Tuesday 8:00 AM – 8:00 PM
  • Wednesday 8:00 AM – 8:00 PM
  • Thursday 8:00 AM – 8:00 PM
  • Friday 8:00 AM – 8:00 PM
  • Saturday 8:00 AM – 8:00 PM
  • Sunday 8:00 AM – 8:00 PM

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Business Details


Business Rating
5.00 (147 reviews) Pro Business
Address
9 Lawlor Ave, Toronto, ON M4E 3L8, Canada, Toronto, ON M4E 3L8, CA
Business Type
general_contractor

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