White Elm Contracting
“Took a few extra weeks for them to install but While Elm said this is because the door they got had a scratch”
Best Window Installers near East Gwillimbury, ON
These companies serve East Gwillimbury from nearby bases in towns including Newmarket, Aurora and Bradford West Gwillimbury.
15 companies listed · 7 open weekends · 10 rated 4.5+
Data verified October 16, 2026
Lana Home Renovation
“The installation crew were very professional and clean, explained the whole process, Roman is best and most knowledgeable installer ever, very helpfull and caring most importantly.”
Simon & Sons Windows and Doors
“It was a tricky installation and handled flawlessly by Simon & Sons.”
Keldan Limited
“Sue and Mark at the office are professional and make certain you are comfortable and everything works for you.”
Estate Renovation Centre
“Able to help pick the right colour based on my discription of what I wanted”
Apollo Glass & Mirror Ltd.
“Our walls were not straight but he made the mirrors so that they look perfect.”
Listed for homeowners in and around East Gwillimbury, ON, these 15 companies fit and repair windows. Frame materials, glazing options and any credentials shown are taken from company websites; the customer lines are quoted from public reviews.
Area overview: East Gwillimbury, ON
The 15 companies on this page are rated from 3.0 to 5.0 across 546 reviews; 4 have 50 or more reviews and 10 are rated 4.5 or higher. The topics that come up most in reviews of the companies on this page are "price", "estimates" and "cleanliness". 7 are open on Saturdays and 1 on Sundays. Domain records put 5 websites of the companies on this page at ten or more years old; the oldest dates from 2002. 1 offers emergency call-outs; 6 give free estimates and 3 are family- or locally-owned. We have a website on file for 13 of the companies on this page; 10 publish a contact page and 10 list a public email. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Is the home visit and measurement free?
A no-cost quote is offered by 6 of the 15 companies on this page. It comes with a sales visit, so agree how long it will take before they arrive. Ask for the quote in writing on the day, itemized by window, and be wary of a discount that disappears the moment the visit ends.
Sutton Glass Windows & Doors
“Sutton Glass Windows and Doors replaced the glass in the aluminum frame the same day and even delivered it back to us.”
Fieldstone Windows & Doors Ltd.
“The Owner of this company and Staff are so honest and trustworthy, products are outstanding and not to mention the installation is done with care and precision in each product that they install.”
Stouffville Glass Inc
“Ordered a custom mirror, it was perfect.”
Bright House Windows and Doors
“I am very happy and would have no problem recommending brighthouse to any of my friends or family.”
Luminous Glass
“Great custom products, installed on time and professionally.”
Griffon Home Renovations
“Fair prices and skilled at custom design.”
Moderno Construction Inc.
“Was really happy with my recent door installation.”
Acrylix Home Solutions
“Works as promised, got my bedroom windows in my condo installed because of the constant noise from Eglinton and I am very glad as to how much the noise has been reduced.”
Class Glass Man
Why these companies made our list
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