Choose Barrie's Replacement Window Leader.

We are Simcoe County and Durham Region's preferred replacement window supplier. We manufacture our own windows and we offer the most comprehensive warranty in the business. If there's ever a problem with one of your replacement windows we fix it right away - we make it right.

We manufacture Energy Star 'Most Efficient' Rated windows and we sell these premium windows at a non-premium price. That means you're getting the absolute best value on your replacement windows.

If you're looking to increase the energy efficiency of your house, to increase the value of your home and to get the region's best prices on replacement windows then contact us now to schedule your free, no obligation in-home consultation.

A Northern Comfort Window with the 20 year warranty badge.
RevoCell™ microcellular PVC windows

RevoCell TM. A Revolution in Window Technology.

We are proud to offer RevoCell™, the Stronger, Brighter, More Energy Efficient Window, rated Energy Star Canada's Most Efficient 2018 dual-pane window.

Energy Star Most Efficienct 2018 Windows.
Find out more.

Energy Efficient Windows

The manufacturing process of all Energy Star® certified windows installed by Northern Comfort Windows and Doors are audited by an independent accredited certification body and approved by Natural Resources Canada. Our windows and doors carry the Energy Star® label showing the specific climate zone for which they are rated. All of our windows meet and exceed Canada’s Energy Star High Efficiency and Most Efficient designations. Our sales team would be happy to provide you with more information about the Energy Star® ratings of our windows.

Energy Star High Efficiency
Energy Star Most Efficient
Energy Star Zone Map

Our Worry-Free Warranty has you covered!

The Northern Comfort Warranty is comprehensive - it covers everything: Our products, the installation and all service required - for the life of the warranty! Enjoy the peace-of-mind that comes with knowing that if anything goes wrong with your window - we fix it, we make it right and at no extra cost to you. Learn more about our industry-leading warranty ›


An image of the Northern Comfort Sales Rep holding the Worry-free warranty.

Easy Payment Plans.

We make it easy to upgrade to new, energy efficient windows and doors. Choose one of our three easy payment plan options:

No payments for 3 months

Upgrade your home with new windows and doors today and don’t pay anything for 3 months.

Fees apply.

60 equal monthly payments

Pay for replacement windows and doors in comfortable installments over sixty months.

Interest rates apply.

Low monthly payment plan

Get better windows and doors and stretch your payments over longer periods, without breaking your budget.

Fees and/or interest rates apply.

Don't just take our word for it.

Everyone we dealt with was pleasant and professional and we love the end result.
Verfied Private User
Prices are competitive. After service is also excellent with no questions asked, they come and fix it.
Rick Brown in Aurora, ON
Very clean friendly, and timely. I would recommend and use this company and these installers again.
Miranda Faulds in Innisfil, ON
All people involved were extremely helpful, tidy, and courteous!
Brenda Wilson in Bradford, ON
Installers did a great job. We're very happy with the door and window!
John and Nancy Lott in Aurora, ON
Customer service is terrific! Very, very pleased with Northern Comfort!
Ralph and Colette Bailey in Stayner, ON
You have a good reputation - strive to keep it that way!
Gary Miner in Barrie, ON
We'll be snug as a bug this winter. Thanks for such quality service.
Debra and William Kelloway in Newmarket, ON
The place to go for price, workmanship, clean and fast service!
Hans Schroder in Barrie, ON

Read more reviews from our customers

Let us help make your house a place to call home.

Contact us today for a free consultation.

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In-home consultation. No obligation.