Welcome to Comfort King Windows and Doors in Ottawa!

Over 100,000 Successful Installations

Comfort King Windows and Doors has been trusted with more than 100,000 professional installations of Ottawa windows and doors, patio doors and siding over the past 40 years. Capable of supplying and installing these products, we have earned the respect of homeowners within a 20-kilometre radius of Ottawa, from Kanata to Orleans and Rockcliffe to Manotick.

Windows for Ottawa

You know your home has a personality, and we have the right windows to enhance that unique character perfectly. No other manufacturer of windows can match the products from Armor®. We have a large variety of window selections, including sliding and casement windows, which can be viewed in our Windows Gallery. With all our window installation products, we offer a comprehensive warranty program.

Doors for Ottawa

We know that windows are an integral part of your home’s personality. We also have the right doors to complement that unique character perfectly. We chose Portatec for their door selection and build quality. Sharing our experience and knowledge in the installation of your new replacement doors is important to your finished project as well. Learn about our door features, styles or the sizes and designs that we offer. We also offer custom finishes and work on custom door installation projects, so contact us today for a consultation to see how we can assist you.


If you are planning to replace your windows because of maintenance or aesthetic reasons, make the most of the opportunity and consider ENERGY STAR windows and doors from Comfort King Windows and Doors. You’ll get the latest advancements in new windows, comfort and amazing energy cost savings. Use our Energy Calculator to calculate how much you can save by using our energy-efficient windows.

Well-Earned Trust

Comfort King Windows and Doors in Ottawa is a family-owned and -operated business established in 1976. We have been in the window and door renovation business for nearly 40 years. Comfort King has been trusted with over 100,000 installations of windows and doors in Ottawa and the National Capital region.

Comfort King Ottawa Window & Door Installation Area

Centrally located in Ottawa, Comfort King Windows and Doors has completed window and door installations in Ottawa East, Ottawa West, Ottawa South, Orleans, Kanata, Barrhaven, Manotick, Rockcliffe and even Rockland! Let us show you why we are one of the most trusted names in windows and doors installers in Ottawa!

Energy Calculator

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Windows Doors Energy Star Well Earned Trust Installation Area

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Comfort King Windows & Doors Ltd


1521 Sieveright Rd., Ottawa, ON, K1T 1M5


Main: 613-526-4550



Business Hours

Monday – Friday: 8:00 AM - 5:00 PM
Saturday: 9:30 AM - 2:00 PM
Sunday: Closed

Free quote with no obligation

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