Windows and Doors Thornton

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Save On New Windows & Entry Doors

Save up to 25% off with our exclusive offer! Call today to learn more and schedule your free in-home estimate.

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    Are you in need of top-quality windowsdoors for your home? Why not go with a company that can provide you with reliable window replacement in Thornton? NorthShield Windows & Doors offers fantastic windows & doors, and superior window replacement. We only supply the finest products made with durable materials so you can be sure the windows & doors you purchase from NorthShield will stand the test of time.

    Aug 2025

    Limited-Time Offer: Get Up to $300 Off Each Window and Up to $500 Off Each Door

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    • ENERGY EFFICIENT

      All of the windows and doors we provide are energy rated and will increase the energy efficiency of your home. Some of the features we offer for making your windows energy efficient are low-e coatings and double/triple-pane glass with insulated chambers.

    • SOLID REPUTATION

      We are the number one choice when it comes to window replacement. This is because we supply our customers with high-quality products and outstanding customer service.

    • LIFETIME WARRANTY

      At NorthShield, we always put the customer first. That is why we offer lifetime warranties on all of our windows & doors. It is no wonder why NorthShield has become the company of choice for windows & doors.

    • FREE IN HOUSE ESTIMATE

      If you are thinking of getting new windows or doors, just give us a call. We will visit your home and provide you with a free no-obligation estimate. We will also help you find the perfect windows or doors for your home.

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    SEE OUR GALLERY

    OUR PAST PROJECTS

    Thornton Windows Replacement

    PROUDLY CANADIAN

    FULL-SERVICE WINDOWS REPLACEMENT

    We are all about making the installation and replacement process of windows and doors in your home as stress-free as possible. We will make the experience quick and easy so you can get back to your day to day life and start enjoying your new windows and doors.

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

    Windows and Doors Thornton

    A VAST CHOICE OF PRODUCTS

    TOP QUALITY VINYL WINDOWS

    For those who want a unique look for their home, NorthShield offers a wide array of different customization options and a variety of different models of doors and windows to choose from. Our large selection and multiple customization options make it easy to find products that will tend to your style, home and budget.

    NorthShield Windows & Doors has been providing quality products and services for over 15 years. If you need new windows & doors or window replacement, give us a call and we will assist you in all of your window and door needs. To see all we have on offer take a look through our diverse catalogue of fantastic products.

    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.

    Reviews From Our Thornton Customers

    “The custom measurements were spot-on. Every window fits perfectly with no gaps.”
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    Dheniseanne
    “Fixed our crooked frames from the old install. Finally, windows that close evenly!”
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    Ariana
    “No dust or debris left behind. They vacuumed like it was their own home.”
    Read more
    Earl

    Upgrade Your Windows With Triple-Glazing

     

    What are triple-pane windows?

    Triple-pane windows feature three layers of glass set within a frame, between the layers of glass there is insulating argon gas which improves windows' thermal performance and soundproofing. By upgrading your double-pane windows to triple-glazing, you will notice a significant improvement in the warmth of your home, allowing you to turn down the thermostat and save on your energy bills! We offer triple-glazing on all of our window styles, call us today to speak with one of our installers and schedule your FREE at-home estimate!

    triple glazed glass

     

    Window Installation Costs

     

    By Window Style

    ✓ Bay Window $3,000-$6,000
    ✓ Bow Window $3,000-$6,000
    ✓ Casement Window $550-$1,200
    ✓ Awning Window $550-$1,200
    ✓ Fixed Casement Window $450-$1,000
    ✓ Single Slider Tilt Window $500-$1,200
    ✓ Double Slider Tilt Window $500-$1,200
    ✓ Single Hung Tilt Window $500-$1,200
    ✓ Double Hung Tilt Window $500-$1,200
    ✓ Hopper Window $500-$1,000
    ✓ Tilt and Turn Window $650-$1,400
    ✓ Triple glass windows +15% to 23%

     

    By Room

    ✓ Kitchen $500 - $1,400
    ✓ Living Room $1,200 - $5,000
    ✓ Bedroom $500 - $1,500
    ✓ Basement $400 - $1,100
    ✓ En Suite $500 - $1,500
    ✓ Family Room $3,000 - $6,000
    ✓ Foyer (entrance hall) $900 - $2500

     

     

    Enhance Your Home With Black Window Frames

     

    Black window frames have grown in popularity over the years, offering a stylish alternative to traditional white frames. Featured in both traditional and contemporary style homes, this versatile window frame colour can instantly enhance the aesthetic of your home by adding a unique design element. Black not your colour? NorthShield offers 39 colour options for new windows, so whatever your design preferences are, we have a window to match!

     

    Create a modern look Make a dramatic statement Accentuate a beautiful view Create a focal point