Ply Gem  Windows & Doors
The difference between a merely "good” looking house and a drop-dead stunner that causes people to slow down and soak it all in is often just the right set of windows. 

Give your home the curb appeal it deserves. Give it a set of gorgeous Ply Gem windows and doors produced by Mitten Building Products and slow down the traffic in your entire neighbourhood. 


Our products include:

  • Premium Series Vinyl
  • Pro Series Vinyl
  • Patio Doors
  • Entry Doors
Ply Gem Windows feature a full array of optional accessories, hardware and glass options


About Mitten Building Products in Canada

Mitten Building Products is a market-leading force in the home exterior marketplace. Famous for their nationally respected line of vinyl siding options, Mitten is committed to providing homeowners with everything they need to perfect the home of their dreams at an incredible value. 

With locations across the country, we're ready and able to help you. For a complete list of our locations and more information about our products, visit

The right set of windows can make all the difference. Come see for yourself at one of our local office branches:
Mitten Building Products – London Ontario
3969 Commerce Rd. Unit # 2 
London, ON   N6N 1P5 
P:  519.644.2675 
T:  877.858.2675
F:  519.644.9069 
At Mitten, we're committed to customer service. If you have questions, comments, or feedback for us, don't hesitate to call. You can reach us at 1-866-MITTEN. For a full list of our locations, click here.