Dan's Discount Windows & Doors
“Quality install, kept everything neat and tidy (not expected but always nice to see) and did an amazing job.”
Best Window Installers in Kitchener, ON
15 companies listed · 11 in Kitchener · 5 open weekends · 9 rated 4.5+
Data verified October 16, 2026
Pickles Home Exteriors
“We will be doing business with them again at some point in the future.”
All-Brite Glass & Tint
“From my first phone call all the way to a curtisy service phone call after the installation.”
Rick Macdonald Siding
“Justin was amazing, he was prompt, courteous, very conscientious, worked quietly without music blaring, cleaned up everything!”
Howald Windows & Doors
“I have always found the staff at Howald very knowledgeable in their field and professional in their customer approach.”
Bavarian Window Works
“Bavarian Window Works was the only company that was willing to investigate without suggesting new windows.”
Listed for homeowners in and around Kitchener, 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: Kitchener, ON
11 of the 15 companies we list are based in Kitchener; the other 4 serve Kitchener from Waterloo (6 km), Wilmot (14 km) and Woolwich (16 km). The companies on this page are rated from 3.6 to 5.0 across 3,072 reviews; 10 have 50 or more reviews and 9 are rated 4.5 or higher. The topics that come up most in reviews of the companies on this page are "estimates", "price" and "cleanliness". 5 are open on Saturdays and 1 on Sundays. Domain records put 10 websites of the companies on this page at ten or more years old; the oldest dates from 1997. 5 offer financing or payment plans; 7 give free estimates; 5 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 15 of the companies on this page; 14 publish a contact page; 12 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Do the listed window companies all have premises in Kitchener?
11 of the 15 give an address in Kitchener itself; the rest serve it from within 20 km. A showroom often covers a whole region, so distance matters less than who does the installing. Ask whether the fitters are employees, and how a callback in the middle of winter is handled.
PM Windows & Doors
“Kevin was great at helping us understand our options and making sure we got the best value for money.”
The Great Egress Company
“How quick how clean and how professional this job was done it truly blows my mind.”
Ecotech Windows & Doors
“They did a good job they r very clean and work very fast on they were on time over all good service”
Wheeler Windows
“We are so pleased with the professionalism of JOEY & BRADY; they both went over and above to do an amazing job with our new windows.”
Golden Windows Limited
“As a contractor Golden windows are my go to for Doors and Windows!!”
Strassburger Windows & Doors
“Have their windows in my home for years and only had an issue once that was professionally and quickly remedied to our satisfaction.”
LP Platinum Roofing & Exteriors
“I filled in the contact form online late one Monday night and heard back from them promptly the next morning and by the Tuesday afternoon someone had come out to see the roof and had emailed us a quote.”
Bechthold Home Improvements
“Kevin is extremely knowledgeable, knows a lot about windows, helpful and honest.”
Eastbridge Craftsmen
Why these companies made our list
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