Portes et Fenêtres Président
“I felt safe with the experience of the very polite and patient installers”
Best Window Installers in Longueuil, QC
15 companies listed · 4 in Longueuil · 3 open weekends · 11 rated 4.5+ · 8 show a licence
Data verified October 18, 2026
Doors and Windows Verdun / Kitchens Verdun
“During covid, the installation time was a little long, but that's understandable (and Yves always kept us informed).”
Unicel Architectural Corp.
“Work exceeding expectations carried out within the estimated time and costs, rarely seen!”
NZP Fenestration
“Our purchasing experience was very informative and we were very well supported in all the steps of our purchase, even after the sale!”
Innovation Portes et Fenêtres
“When it came time to install them, they were very professional, took their time to make sure each window and door was installed to perfection.”
Portes et Fenêtres Olympas
“A big thank you to the whole team for your professionalism, Johnny, Erica, Mathieu (the project manager) and his young assistant, etc.”
Listed for homeowners in and around Longueuil, QC, 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: Longueuil, QC
4 of the 15 companies we list are based in Longueuil; the other 11 serve Longueuil from towns including Montreal (4 km), Saint-Laurent (12 km) and Laval (19 km). The companies on this page are rated from 4.2 to 5.0 across 1,842 reviews; 13 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (79%), quality (75%) and value (74%). The topics that come up most in reviews of the companies on this page are "cleanliness" and "communication". 3 are open on Saturdays. 8 show a licence on their websites. Domain records put 7 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 4 give free estimates and 2 list coupons or special offers. We have a website on file for all 15 of the companies on this page; 11 publish a contact page and 11 list a public email. 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 Longueuil?
4 of the 15 give an address in Longueuil 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.
N.e.w. Factory
“There was an unforeseen issue with the manufacturer and Amelie and Viola were excellent in keeping us updated.”
Élit Tech Portes Fenêtres & Toitures Métalliques
“The process and materials used were explained to us from start to finish and this gave us confidence in the choice we had made.”
Portes et Fenêtres Factory Direct Montréal Windows & Doors
“I had new windows and an exterior door installed over a year ago, and they have been performing great!”
Les Portes & Fenêtres Charland
“Best Service and Quality job ever encountered with a Portes et Fenetres company in Montreal.”
Portes et Fenêtres Impérial Inc.
“The windows are offered at a very good price compared to other companies I have looked at.”
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Doors & Windows Inc South Shore
“Very satisfied to have done business with this company.”
GIT Portes et Fenêtres Montréal
“They did a great job installing our new window.”
Manic Aluminium Ltee
“Both the representative, the person who came to measure my windows and their technical team were more than professional and friendly.”
CBE Fenestration
“I would also like to personally thank you for the excellent “customer service” you have demonstrated since our first telephone conversation over 3 months ago”
Why these companies made our list
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