Performance

At Thermoproof Windows and Doors, we understand that high performance is more than just a specification—it’s a commitment to quality that’s been at the heart of our work since 1977. Proudly built on Vancouver Island, our products combine the best materials and craftsmanship to deliver windows and doors that stand the test of time, providing exceptional insulation, durability, and sleek designs.

Our high-performance products start with premium, Canadian-made vinyl for superior insulation and durability. We use high-quality glass with advanced LowE coatings, which protect against UV rays and help maintain comfortable temperatures year-round. For even greater energy efficiency, we add argon gas between panes, boosting insulation and reducing heat transfer.

Every Thermoproof window and door is built with robust stainless-steel hinges and non-corrosive hardware, ensuring long-lasting strength and performance even in coastal environments. Whether you’re looking to enhance your home’s efficiency, safeguard against the elements, or simply add lasting beauty, Thermoproof is dedicated to delivering the highest standards of quality and craftsmanship in every detail.