Our Installation Process

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    Installing new windows and doors is one of the best upgrades you can make to your home, but the installation itself is what determines how well everything performs. At NorthShield, we focus on getting every detail right, from the first measurement to the final checks, so your home stays comfortable, efficient, and protected for years to come

    We provide professional installation across Toronto, the GTA, Winnipeg, Calgary, and surrounding areas, with experienced installers, Canadian-made products, and a lifetime transferable warranty you can count on.

    Apr 2026

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

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    • PRECISION MEASUREMENTS

      Every home is different, and we treat it that way. Our team takes exact, detailed measurements to ensure your windows and doors fit the first time perfectly, with no gaps, no guesswork, and no compromises.

    • BUILT FOR EFFICIENCY

      Our installations are designed to help your home stay comfortable and energy-efficient year-round. We also responsibly dispose of old materials, because doing the job right includes doing it responsibly.

    • EXPERT PREPARATION

      A proper install goes far beyond placing a window in an opening. We carefully align, secure, and insulate every unit to ensure long-term performance, clean finishes, and a seamless look inside and out.

    • CLEAN, RESPECTFUL SERVICE

      We treat your home like it’s our own. Once the job is done, we leave your space clean, tidy, and exactly how we found it, just with better windows and doors.

    Image depicts Energy Star logo Image depicts the Health Smart Windows logo Image depicts the Lo-E 180 logo Image depicts the Insulating Glass Manufacturers Alliance logo Image depicts the CSA Group logo Image depicts the Window Wise logo Image depicts the SAWDAC logo
    installation contractors

    Our Step-by-Step Approach

    Our Installation Process

    We keep the process straightforward, efficient, and respectful of your home.

    1. In-Home Assessment & Measurements: We start with a detailed assessment to make sure everything is measured accurately and suited to your home
    2. Product Preparation & Custom Fit: Your windows and doors are prepared to fit your openings properly, ensuring a clean and secure installation.
    3. Careful Removal of Existing Units: We remove your old windows or doors carefully to avoid unnecessary damage to surrounding areas.
    4. Professional Installation & Sealing: Each unit is installed, aligned, and sealed to prevent drafts, leaks, and energy loss.
    5. Finishing, Adjustments & Inspection: We complete interior and exterior finishing, make final adjustments, and check everything thoroughly.
    6. Full Clean-Up & Walkthrough: We leave your space clean and walk you through the completed installation, so you know exactly what’s been done.

    full frame installation vs retrofit

    Not All Installations Are the Same

    Retrofit vs Full-Frame Installation

    The type of installation depends on your home and the condition of your existing frames.

    – Retrofit (Insert) Installation: A faster, more cost-effective option that uses your existing frame. Ideal when the frame is still in good condition.
    – Full-Frame Installation: A complete replacement of both the window and the frame. This is often recommended for older homes or when there are signs of damage, drafts, or moisture issues.

    If you’re unsure which option is right for you, we’ll walk you through it during your consultation and recommend what makes the most sense for your home.

    installing new bow window

    A Team You Can Rely On

    What to Expect on Installation Day

    We know having work done in your home can feel disruptive, so we aim to make the experience as smooth as possible.

    – Most installations are completed efficiently, often within the same day, depending on the scope
    – Our team works carefully to minimize noise and disruption
    – We’ll guide you on simple prep steps ahead of time
    – Your home is treated with respect throughout the process
    – We clean up fully before we leave

    “A huge thank you to Northshield for the amazing job on our windows and doors. It was a very big job, and the team was professional throughout the entire process. Installation was quick and painless, and they did a great job cleaning up afterwards. We couldn’t be happier with the results and the service we received!” – Google review from one of our happy customers!

    old windows for replacement

    What Actually Drives the Price

    What Affects Installation Costs

    Every home is different, which is why installation costs can vary.

    Some of the main factors include:

    – The size and number of windows or doors
    – The condition of your existing frames
    – Retrofit vs full-frame installation
    – Custom shapes or sizing
    – Accessibility of the installation area

    For a more accurate idea of pricing, you can use our cost estimator or book a free in-home consultation.

    lifetime warranty on door installation

    Made to Perform Over Time

    Built for Long-Term Performance

    A proper installation does more than just secure your windows and doors, it helps your entire home perform better.

    With the right installation, you can expect:

    – Better insulation and fewer drafts
    – More consistent indoor temperatures
    – Protection against moisture and air leaks
    – Reduced strain on your heating and cooling system

    We install with long-term performance in mind, especially for Canadian climates where durability and efficiency matter.

    professional installer

    Support That Stays With You

    Our Commitment Doesn’t End After Installation

    Our job doesn’t stop once your windows and doors are installed.

    We stand behind our work with:

    – Ongoing support if you have questions
    – Warranty coverage you can rely on
    – Guidance on maintaining your windows and doors

    It’s all part of making sure you feel confident in your investment long after the installation is complete.


    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

    “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.”
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    Joan
    “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.”
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    Robert
    “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.”
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    Lisa
    “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.”
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    Rob
    “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!!”
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    Alex
    “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!”
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    Bonnie