High Quality, Energy Efficient Replacement Windows

Windows from $199
Patio Doors from $799.
We match all written estimates and give up to 10% off lowest quoted price

Replacement Windows and Doors GTA

Our windows, entry doors and patio doors are manufactured in Canada using state of the art process, ensuring each door and window meets or exceeds Ontario building code.

Reliable & Experienced Windows and Doors Replacement Contractors in Greater Toronto Area

We have installed hundreds of windows and doors over the last few years, with aim to provide greatest customer experience. Our clients’ referrals and repeat business are the most important accolade for us that we always strive to earn.

another window replacement project by ON Star Windows & Doors in suburban Ontario

  • Free On-Site Estimate

  • Professional Installation

  • Warranty & Repairs

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Satisfied Customers

Book a Free In Home Estimate or call us at 1 (800) 383-6041

Recent Blog Posts

Different Types of Replacement Windows: Best Shopping Guide

Windows serves as the primary source of light and air ventilation for any house or office. A window that suits your personal style statement, complements the overall arch...

January 23rd, 2019

Installation of Replacement Windows: Everything You Should Know

Windows are one of the important elements of a building. Not only do they enhance the outer aesthetics of your home but also have a lot to offer when it comes to function...

January 20th, 2019

The Essential Advantages Of Double Pane Windows

A crucial part of the renovation of your house entails that you decide on the kind of windows that would be in line with your requirements and tastes. The most common dil...

December 17th, 2018

Start with a Quote. It’s Easy and free!

We’ll make your window and door replacement experience simple and offer you the best value. Schedule your free, no-obligation in-home consultation today!

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