North Design Windows
“Very pleased with the experience from the initial consultation, pricing, excellent service, and quality work installing all new windows and a sliding door.”
Best Window Installers near Stittsville, ON
1 of these companies is based in Stittsville; the others serve Stittsville from towns including Ottawa, Nepean and Gloucester.
1 open 24/7 · 9 open weekends · 19 rated 4.5+ · 2 show a licence
Data verified October 21, 2026
Vinyl & Aluminum Warehouse
“Very friendly and helpful staff they walk you through every step of the way and go above and beyond for every customer that comes in and if I could give them higher then a 5 I would”
Canadian Comfort
“Job done as per the agreements and the installation was done by professional installer .”
Westend Windows and Doors Ottawa
“Everything from the price, communications, installation and final result was beyond satisfactory.”
Bayview Windows
“He tolerated me as I watched, wanting to learn the new procedures of window installations, and explained everything that was new to me!”
Capitall Windows
“Will definitely be going with them when it's time to do my 1st floor windows!”
Listed for homeowners in and around Stittsville, ON, these 24 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: Stittsville, ON
The 24 companies on this page are rated from 4.1 to 5.0 across 1,875 reviews; 11 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (90%), quality (84%) and responsiveness (75%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "cleanliness". 1 is open around the clock; 9 are open on Saturdays and 2 on Sundays. 2 show a licence on their websites. 13 have ten or more years of experience, the longest 30 years. 2 offer emergency call-outs; 4 offer financing or payment plans; 19 give free estimates; 5 are family- or locally-owned and 5 list coupons or special offers. We have a website on file for all 24 of the companies on this page; 22 publish a contact page and 17 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.
Which listed window installers say they are licensed?
2 of the 24 listings on this page show a licence on their websites. Licensing is provincial or municipal, so confirm the claim with whoever issued it. Ask separately about workers' compensation coverage, which is the document that protects you if an installer is injured working on your property.
Eco Ottawa Windows and Doors
“We had all the windows in our home replaced, and are super pleased with the overall quality and the recommendations that Shane made to bring our house out of the 90s, and all at a very reasonable price.”
Cana Windows and Doors
“The sales consultant demonstrated extensive knowledge, articulating the options in accessible language and offering valuable recommendations.”
M & T Glass
“In an era of over-priced design studios vs “get what you pay for” big box options, M&T provided unparalleled expertise, fair pricing and expert, on-time installation.”
Dalmen Pro Windows and Doors
“DALMEN replaced all of the windows in our house and they look and function brilliantly and for the money they should.”
Centennial Glass
“I recently dealt with Allison, and she was e Springdale helpful, calling me back because she found a source for a rare and discontinued part.”
Nepean Doors & Windows
“I had one glass window replaced and I am very happy with the service.”
Fendor Glass & Aluminum Inc.
“Not only are we delighted with the quality of the windows themselves, but installer Chris and his partner Fred were hard working, tidy and quiet, and the quality of their workmanship was excellent.”
Perspective Windows & Doors Ltd.
“Their attention to detail was superb, and we're already noticing a significant improvement in the comfort of our home.”
Manotick Windows & Doors
“I work in the industry and can confirm, from meeting with the sales person, to product delivery, my expectations at every step were met.”
AK Windows
“I'm happy to recommend Andrew and his team to anyone who's looking for any window/renovation jobs that they might need to get done.”
Ottawa Glass Ltd
“This is my second time using them and have never been disappointed.”
Advantage Enterprises Windows & Doors (Ottawa)
“Vitaliy's team installed my windows last year and I called him back to replace my door since he and his team was so great.”
Alba Home Services
“We don't normally leave reviews online but we felt compelled to leave a 5 star review based on how happy we were with the outcome.”
Capital Door Tech
“I was happy to use their service and definitely will recommend them to other people!”
Valley Siding & Windows Ottawa
“Very happy with Valley Siding & Windows all the way from the sales process to the installation.”
George's Construction & Roofing Inc.
“We appreciated the thorough, careful and professional approach to our roofing repairs.”
Comfort King Windows and Doors
“Comfort King was highly recommended by a family member and they did not disappoint.”
Precision Windows and Doors (Ottawa)
“Vito made the project easy for us providing multiple products to choose from and making the decision easy with his years of experience.”
Why these companies made our list
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