Windows and Doors Alliston

FREE In-Home Estimate (905) 326-3444

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Are you tired of wasting hundreds of dollars each year on drafty old windowsdoors? At NorthShield Windows & Doors we offer a large selection of energy-efficient windows & doors as well as providing professional window replacement in Alliston. Servicing Alliston and its surrounding areas for over 20 years, our team has the skills and inventory to provide you with your best fit. With our windows & doors installed you will save hundreds of dollars each year on your energy bill.

Call our professional window replacement experts at (905) 326-3444 for a free, no-obligation, in-home estimate today!


    All of the windows & doors provided by NorthShield are energy rated so you get the most out of your investment for your home. Some of the energy-saving features our products have are low-e coating and double/triple pane glass windows with insulated chambers.

    We stand out from the competition due to all of the great energy rated products and services we provide and the added perks such as lifetime warranties on certain products. We are one of the highest-rated companies for windows replacement in Toronto.

    All of our products come with an exceptional warranty, so you can have peace of mind when you shop with us. We are all about giving the customer the best customer service possible, which is why we are the best choice when it comes to window replacement.

    Windows & doors can be a large investment, so to save you on any extra expenses we offer free in-home no-obligation estimates for all homes. Regardless of if you are looking to purchase new windows or doors or just want to replace the old ones, a free quote is only a call away.





The process of having new windows installed can be a stressful, particularly if you live in Canada. With its weather extremes, it is imperative to have the correct windows & doors. At NorthShield, we honour the Canadian lifestyle, which is why we provide only the highest quality windows & doors tailor-made for your home. We know how to keep your home secure and cozy throughout the seasons. Our team takes the time to understand the specific needs of each individual customer because our goal is to provide hassle-free service with no unnecessary delays.

For all your window replacement needs, call our team in Greater Toronto Area



If you have something specific in mind for your home, we offer a wide array of customization options and various models of windows to choose from. We will help you get the home you have envisioned with no compromises.

We have been offering quality products and window replacement for over 20 years. We can help you install, replace and upgrade your windows & doors to help you get the perfect look for your home. Visit our store or browse our site to discover our vast collection of windows & doors.

Book Your Free Estimate

Window frames
25 years warranty.

Window hardware
25 years warranty.

Window glass
25 years warranty.

Window installation
15 years warranty.

Window colour
10 years warranty.

Entry doors frame
10 years warranty.


“Great service. Replaced 6 windows and patio door with NorthShield Windows and Doors. Eugene was amazing in providing the estimate and Brad and the team came to install it, everything was installed within 6 hours and they cleaned after they were done. Thank you guys.”
“Great experience with them! Everything from the salesman (Walter) who came to our home to the office staff that set up our installation to the four men who installed the windows has been handled professionally. Very happy with the overall process.”
“We had our front door replaced in mid-September. First off, Rod who sold us on North Shield gave us a great price and was really nice to work with. Our installer Cody was very professional and very friendly at the same time. He did an excellent job. We’re so very happy. Thank you NorthShield.”
“Great workmanship! The crew showed up on time, they were friendly as well as professional. their work was efficient, fast and clean. Russ explained operation of the windows after and if there were any problems they would fix them right away. I would highly recommend this company.”
“This is a very professional company and i loved the guys who did the job. They did an amazing job and I'm very happy that i choose to work with NorthShield company. They did for me 15 windows and it looks great. In addition they gave me a very responsible price. Can't Recommend Highly Enough!!”
“I would highly recommend NorthShield Windows and Doors to anyone looking to have their windows replaced. They were so friendly, efficient and CLEAN!! They exceeded all my expectations. Not a single piece of garbage was left behind. The quality and care they put into their work is amazing!”

Prices By Window

$2000 - $4000
$2900 - $5000
$420 - $1100
$420 - $1100
Fixed Casement Window
$350 - $850
Single Slider
Tilt Window
$400 - $950
Double Slider
Tilt Window
$420 - $1000
Single Hung
Tilt Window
$410 - $970
Double Hung
Tilt Window
$420 - $970
$400 - $800
$540 - $1200


Prices by Room

We specialize in expert window installation for any room in your home. The boxes below show an estimate range of window installation costs for particular rooms. To find out more, click on the box you're interested in, and contact us for a detailed quote.