Business ProfileWindow Installers in Toronto, Ontario
NorthShield Windows and Doors
NorthShield Windows and Doors
NorthShield Windows and Doors is a Canadian window-and-door company that has served homeowners in Toronto and the GTA for over two decades. It offers custom vinyl window replacement and installation using Canadian-made products, with options including triple-pane glass and Low-E coatings.
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Business Highlights
- NorthShield lists its installers as certified and trained in precision, energy efficiency and weather-ready performance.
- Its window frames, hardware and glass carry 25-year warranties; installation carries a 15-year warranty, and window colour a 10-year warranty.
- The company says it has been BBB-accredited since 2011.
- NorthShield says it was named one of Three Best Rated's Best Window Companies in 2025.
Service Area
Toronto and the GTA, including North York, Vaughan, Mississauga and Scarborough.
Active Business Listing
NorthShield Windows and Doors is one of 12 window installers ProsGrade lists in Toronto, Ontario.
Active
Public local listing
Listing details
11 services listed, including Vinyl window replacement, Window installation and Casement windows. Open Monday to Saturday. 147 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How NorthShield Windows and Doors compares with the other 11 window installers on ProsGrade in Toronto, using public Google ratings and review counts.
- Has more Google reviews (147) than 7 of the 11 other Toronto window installers on ProsGrade.
Services Covered
11 services- Vinyl window replacementtriple-pane glass, Low-E coatings and custom vinyl frames
- Window installationretrofit (insert) and full-frame options
- Casement windows
- Picture and fixed windowsfixed-window designs
- Tilt-and-turn windowshandle operation opens in multiple ways
- Awning and hopper windowsawning units open outward; hopper units inward
- Single- and double-hung windowsbottom sash only, or both top and bottom sashes
- Sliding windowssingle- and double-slider styles; lift-out sliders can open inward
- Bay and bow windows
- Custom-shaped windowscustom shapes available
- Exterior and patio doorsfibreglass, steel, French and sliding options
Reviews
What customers say
Customers praise the installation crews for careful, professional and tidy work. In one full-house project, the windows were replaced in a day, with interior and exterior finishing completed the next day.
Customer Reviews
Stephen Freedman
Replacing all of the windows in our 100 year old house (in mid-February) was more than a bit stressful, but the team at NorthShield were incredible. The windows were replaced in one day, with the finishing inside and out completed on the second day. The installers (including Turat) were very skilled, careful ... and tidy! In addition, Alex clearly really cares about the team doing the best that they can, even with all of the "quirks" of an old house. Finally, the windows themselves appear to be of excellent quality. With all of the horror stories that you hear these days about homeowners being scammed or otherwise taken advantage of, it's really nice to find people you can trust. I'm happy to say that NorthShield is run by people like that.
Babona Babona-Pilipos
NorthShield finished replacing all my windows, front door and patio door. Since the first time I met with ROBERT DILLON the company sales representative I trusted him his honesty is incredible immediately I dismissed four other quotes from different companies. ROBERT is a pleasant person to deal with always answer the calls or call back.He spent time helping us to choose the right design, he gave us very reasonable price. The installers VITALY and DANIEL did a fantastic job very neat and clean provided careful and professional installation what a great team. My wife and I are very excited with this experience.
Thank you NorthShield windows and doors.
sarah boye
Alex and his team were fantastic and I highly recommend them. They were professional, on time, courteous and reliable. I have already recommended their services to our neighbours. You will not be disappointed with their service or product. It was refreshing and stress free to deal with North Shield.
Conrad DSouza
We’re thrilled with our new NORTHSHIELD doors! The colors and design are exactly what we wanted, making our home’s entrance warm and inviting. The installers were skilled professionals, making smart adjustments, and finished the project ahead of schedule. The price was very reasonable for such high-quality work. Highly recommend NORTHSHIELD for their excellent service and value!
Adrianna Thornton
Northshield replaced our upstairs windows in July, and we could not be happier with them. Thanks to Alex who guided and informed us through the whole process, and who always was available to answer our questions. The pricing was transparent and quite reasonable. The installers were efficient, professional, and worked neatly. The quality of the windows was a massive improvement over our previous ones. They are lovely to look at, give our home more natural light, and are easy to operate once you get used to them. An A+ experience!
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Frequently Asked Questions
How long do NorthShield's installations usually take?
NorthShield says most installations are completed efficiently, often within the same day, depending on the scope.
What does NorthShield's installation process include?
It starts with an in-home assessment and measurements, then covers careful removal, installation and sealing, finishing and inspection, and a final clean-up and walkthrough.
What is included in a full-frame window replacement?
The existing frames are removed back to the brick, and the replacement includes new jamb extensions, casings and brick moulds.
Does NorthShield provide in-home estimates?
It offers free, no-obligation in-home estimates tailored to the project.