Performance-led windows · Montreal & Quebec
Windows
Unisson manufactures premium windows designed for modern construction, combining performance, insulation, durability, and architectural flexibility.
Free consultation
Get your free quote
Our experts respond within 24 hours
By submitting you agree to our Privacy Policy
Featured styles
Explore window types by how they ventilate, frame views, and fit the architecture of the home.
Unisson windows are manufactured using 100% lead-free UPVC, delivering superior durability, easy maintenance, and long-term resistance against cracking, blistering, warping, and discoloration.
Awning windows are hinged at the top and open outward from the bottom, creating a clean architectural look while delivering practical ventilation and weather protection.
Casement windows open outward on side hinges, offering unobstructed views, excellent ventilation, and one of the tightest seals available for strong year-round performance.
Double Slider windows use two operable sashes that glide horizontally, delivering flexible ventilation, clean lines, and dependable day-to-day operation.
Double Hung windows combine timeless proportions with modern performance, using two vertically operable sashes to create balanced ventilation and a refined appearance.
Single Slider windows offer one operable sash paired with a fixed panel, balancing controlled ventilation, affordability, and a clean contemporary profile.
Built to Perform
Each system can be customized to match your architectural style and performance needs.
Unisson windows are crafted using high-quality materials and tested to meet CSA standards. Designed for Montreal's climate, our systems improve thermal comfort, reduce noise, and increase long-term energy efficiency.
Unisson windows are not just a functional upgrade — they are a long-term investment in your home's comfort, beauty, and value.
- Fusion-welded 100% UPVC sash and frame
- Guardian Glass with Super Spacer® warm-edge technology
- Multi-point locking hardware by Roto & Truth
- Energy Star® performance with Low-E coating and Argon gas
We also serve