Frank by Ostaco is a proudly Canadian window and door manufacturer with over four decades of experience serving the residential, custom home, and renovation markets. Established in 1981 as Ostaco Windows & Doors and rebranded as “Frank,” the company has remained family-owned and operated—deeply committed to quality, innovation, and local manufacturing.
Headquartered and manufactured in Concord, Ontario, Frank by Ostaco has built a strong reputation for delivering highly customizable, made-to-order windows and doors designed specifically for Canadian homes and climate conditions. From urban infills to lakeside cottages, every product is crafted to perform reliably in Canada’s diverse weather, while offering design versatility and enduring style.
We are proud to have “Frank by Ostaco” as our partner brand since 1990’s
The following vinyl products are available:
- Windows:
- Casements, Awning, Single and Double Hung, Bay, Direct Set, Tilt & Turn
- Doors:
- Front Doors, Sliding, Lift and Slide
Please visit www.frankwd.com for more information
