High Quality, Energy Efficient Replacement Windows

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

Recent Blog Posts

The Most Common Problems with Old Windows

Most of the homeowners take the windows of their home for granted. Once installed, people hardly ever think about maintaining them. And due to this reason, windows become...

May 21st, 2019

Common Types of Front Doors Based On Material

Don’t you dream of having a beautiful home- a place that everyone admires? Your home is a reflection of our personality and lifestyle. People can tell a lot about you b...

May 21st, 2019

Important Things to Know Before Replacing Your Windows

People spend thousands of dollars to make their home look fantastic and feel comfortable. Most probably, you have also invested a huge amount in remodeling your kitchen o...

May 19th, 2019

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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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