Montreal · Quebec · Since 2011
About Unisson
Since 2011, Unisson Groupe has focused on delivering high-performance windows and doors that combine precision craftsmanship, refined design, and long-term energy efficiency across Montreal and Quebec.
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Why Unisson
A company built on craftsmanship, precision, and long-term relationships.
From the very beginning, our mission has been clear — to combine precision craftsmanship, refined design, and long-term energy efficiency into solutions that truly enhance the way people live.
We do not mass produce. Every window and door is individually crafted with meticulous attention to detail, ensuring a perfect balance between architectural aesthetics and technical performance. Our products are designed not only to enhance the beauty of your home, but to withstand the realities of Quebec's demanding climate.
Energy efficiency is at the core of everything we build. Each Unisson product is engineered to exceed industry standards, integrating advanced UPVC systems, premium European components, and high-performance hardware. Sustainability is equally important to us. We proudly use 100% lead-free UPVC materials and recycle 100% of our production waste — contributing to a cleaner, more responsible future.
Above all, we value craftsmanship, integrity, and long-term relationships. Every installation is backed by an industry-leading warranty — because confidence in our work is part of who we are. Since 2011, Unisson has been more than a window manufacturer — we are a trusted partner in building better, more efficient homes.
- Founded in 2011 in Montreal
- High-performance windows and doors
- Lead-free UPVC and responsible manufacturing
- Industry-leading warranty and long-term support
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