Ready for a fresh look? Sounds like you need some replacement windows! In London Ontario, Mitten is proud to offer the best selection of windows of any home-exterior supplier in Canada.

When you need a bold visual design, top quality performance, and a guarantee of long-term staying power, you need Ply Gem windows. Mitten is the only distributor of this top-rated line in Canada, offering a selection of Ply Gem’s best including everything from their Vista Series of modern, high-performance windows to their aluminum clad design series of bespoke glass.

We also offer:
  • Vista Series Vinyl 
  • Comfort Series Vinyl 
  • Classic Series Vinyl
  • Design Series Aluminum Clad Vinyl
  • Signature Series Aluminum Clad Wood

  • We're also proud to offer:
  • Procanna windows and doors
  • P.H Tech Patio doors
  • A wide variety of accessory products and options
About Mitten Building Products in Canada
Mitten Building Products has built its reputation as the premier leader in Canadian home exterior products. From siding, to windows, to accessories, Canadian homemakers know Mitten has what they need for all their home remodelling process.

Mitten Building Products in headquartered in Brantford, Ontario. For a complete list of our locations and more information about our products, visit

Want to see our work in person? Visit one of our local office branches:

Mitten Building Products – London 
3969 Commerce Rd. Unit # 2 
London, ON   N6N 1P5 
P:  519.644.2675 
T:  877.858.2675

If you have any questions, comments, or feedback, please let us know at 1-866-MITTEN!