2651 John Street, Unit 2 Markham, ON, L3R2W5

Welcome to Torwin

Our customers choose us for their home window and door projects because:


We offer a full range of top-quality replacement windows and exterior doors in Toronto & the GTA, along with a lifetime warranty on all our products


We are industry leaders in options and finishing for bay windows, bow windows, and box bay windows – including custom aluminum capping options.


With an impressive 33 years serving Toronto, Markham, Mississauga, and Oakville and over 70 years of combined experience between our owners, our reputation as a family owned business has fueled our desire to deliver the best customer experience each time you work with us.

The result: you enhance the curb appeal and elevate the resale value of your home with the Torwin Windows & Doors Team.

+ Years in Business
You said it
From Milton

We highly recommend Torwin Windows & Doors! They are professional, answered questions thoroughly, and did a great job.


need help?

We will be happy to answer any questions you may have


Home Owner in Toronto

“I cannot begin to say enough about Torwin Windows and Doors. They replaced 20 windows and 4 doors in 3 days, as promised, staying until 8:30 pm on the final day to make it happen. Thank you Torwin! I love my new windows and doors.”

Home Owner in Markham

“This is the second time we have used Torwin to replace our windows and doors. Jody, Ivana and Nick were a pleasure to deal with! They are reliable and offer a top quality product at a fair price. The Torwin Team went above and beyond. We would highly recommend them! “

Farmhouse Owner in Ontario

“The Torwin team replaced all of the windows in our home. They were all very professionals from start to finish, ensuring that we were part of the process at each step by step. And they were quick to answer any of our questions along the way.”