Window and door openings are the most common cause of building envelope failure and can cause catastrophic problems.  Since many of these problems are not evident for years after installation, it is imperative to get qualified installers who understand proper installation techniques.  Streamline is recognized as one of only 200 premium renovator's in Canada by Gentek building products and is certified for the LePage quad max seal installation method.

Windows & Doors .


Streamline Exteriors offers unprecedented warranty protection for the windows, as well as the building envelope system.   We offer a standard 5 year installation warranty but in conjunction with Lepage and Rona we offer a 10,000 dollar (per dwelling) 15 year window seal warranty (in addition to the manufacturer's window warranty).