Vitrerie Justalex Varennes
“I am very happy to have done business with Justalex for the replacement of a half-moon thermos (8 feet at its base).”
Best Window Installers near Varennes, QC
3 of these companies are based in Varennes; the others serve Varennes from towns including Saint-Léonard (16 km), Terrebonne (16 km) and Mascouche (15 km).
4 open weekends · 12 rated 4.5+ · 6 show a licence
Data verified October 21, 2026
Portes et Fenêtres Verchères
“We are very satisfied with the sales services, installation and quality of the products.”
Entreprise Serge Gaudette
“Service and great quality of work”
Confort Prestige
“Excellent product quality and excellent service, from the seller (Simon Lafleur) and the installers (Steven and Cédric).”
Fenplast
“Whether at the level of the submission process (Chantal), measurement (François), organization of the installation appointment (Diane), administration (Martine) and installation (Guillaume and his team ), the entire chain listened to us and was able to meet our needs.”
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Doors & Windows Inc South Shore
“Thank you to the south bank door and window installation team, very satisfied with the work who did”
Listed for homeowners in and around Varennes, 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: Varennes, QC
The 15 companies on this page are rated from 4.1 to 5.0 across 1,333 reviews; 12 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (88%), quality (81%) and value (72%). 4 are open on Saturdays and 1 on Sundays. 6 show a licence on their websites. 9 have ten or more years of experience, the longest 30 years. 2 give free estimates and 2 list coupons or special offers. We have a website on file for 14 of the companies on this page; 8 publish a contact page and 9 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 Varennes?
3 of the 15 give an address in Varennes itself; the rest serve it from within 25 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.
Manic Aluminium Ltee
“Excellent service every step of the way from the initial call, choosing windows, taking measurements and installation.”
GIT Portes et Fenêtres Montréal
“We just had our windows installed and we are really happy with our experience with the GIT company.”
Portes et Fenêtres Président
“And thanks to Portes et Fenêtres President we are already seeing a big difference with heat loss (installation in January) and we will receive compensation from Réno Climat for each window installed given the great energy savings!”
Aluminium Atlanta Inc
“I use Atlanta Aluminium personally and refer them to all my clients.”
Portes et Fenêtres Inter-Québec
“My family and I have used this company many times for our windows and doors and we've had nothing but the best as far as service and professionalism and pricing.”
Fabelta Windows Systems
“I purchased a house with fabelta windows that were installed 5 years ago and the quality of these windows are incredible.”
Instaltech G.L
“They did all my doors and windows + exterior cladding within the agreed time frame.”
Héritage Portes et Fenêtres
“Great team, excellent work, nothing but positives with Héritage Portes et Fenestres...”
Portes et Fenêtres Lamater Inc.
“We had our house siding done and the result is very beautiful.”
Why these companies made our list
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