Quality service since 1978
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Fiberglass Window And Door Installation

We Offer:
  • Lifetime warranty
  • 8x stronger than vinyl
  • 38% longer useful life expectancy than vinyl
  • Narrow frames to maximize glass area
  • Endless colour options
Beat the Bank
With Our 3.95% Rate

    FREE Window and Door Assessment

    If you have a window project you’re looking to tackle, D’Angelo & Sons is here to help with over 35 years of experience. Damaged windows can take a variety of forms, and we can take on all of them. Whether your windows are faulty, drafty, broken, foggy, have damaged screens, or are creating a security issue, we can send one of our highly trained professionals to your home for an assessment.

    D'Angelo Affiliated

    Our Product Lines Include

    We want you to be completely satisfied with every aspect of your window project. We carry the best quality products that the market has to offer. Depending on your home, budget, window size, and preferences.

    These superior products are backed with a lifetime prorated warranty that starts to prorate after 20 years. Our products are all Energy Star Qualified, which saves money on your heating bills, and are CSA approved.We have spent decades providing quality work and craftsmanship to our clients and take our reputation very seriously. And our commitment to excellence extends to every area of our company.

    That’s why we staff our company with the best trained industry professionals. Their knowledge, expertise, and attention to detail set us apart in our ability to offer our clients the very best service the window industry has to offer. We’re proud to be certified by Window Wise Certification, an organization committed to providing peace of mind to consumers by creating standards of excellence in both products and quality of installation. D’Angelo & Sons is also a proud registered member of the Sliding and Window Dealers Association of Canada (SAWDAC), another testament to our professionalism, quality, and expertise.

    Fiberglass Windows

    Window - Tilt and Turn
    Tilt and Turn
    Our Tilt and Turn windows provide both practical and aesthetic benefits, offering easy cleaning and maximum ventilation when opened like a door.
    Window - Awning
    Awning windows, with their top-hinged design, open outward via a crank operation, making them a great choice for ensuring ventilation even during rainy conditions.
    Window - Casement
    Our Casement windows combine sleek modern design with excellent performance, as they are side-hinged and open up to a full 90 degrees to the left or right.
    Window - Fixed
    Fixed windows, also known as picture or architectural windows, remain permanently closed and serve the purpose of framing specific outdoor views.
    Window - Strip
    Our Contemporary fixed window offers expansive size potential and minimal sightlines, allowing for impressive walls of glass.
    Window - Slider Horizontal Vertical
    Slider Horizontal & Vertical
    Sliding or gliding provide both convenience and style for fresh air with high performance, featuring ventilation through a single operable sash.
    Window - Bay Bow
    Bay / Bow
    Bay windows are created by uniting three windows, either fixed or operable. While bow fiberglass windows consist of four or more equal-sized fixed or operable windows.
    Window - Custom
    Achieve your desired style with the ultimate design freedom of custom-shaped windows, whether it’s contemporary sloped or intricately detailed traditional windows.

    Color Options

    Color Palette
    Standard Colours
    Color Wheels RGB
    Custom Colours

    Glass Options

    Glass option 2
    Glass option 1

    Grilles Options

    Grilles Option 1
    Grilles Option 2
    Grilles Option 3
    Grilles Option 4
    Square Pencil
    Gutter Protection

    Our standard eavestrough installation is done using a continuous support system. D’Angelo and Sons is certified for installing T-Rex® from Alu-Rex, an innovative gutter maintenance system with a continuous hanger designed to keep your gutters straight and clean for years to come.

    T-Rex® continuous hanger come with a lifetime guarantee covering robustness and defects in materials. This system prevents ice from penetrating inside the gutter and helps water drain away while extending the life of your gutters by making them stronger, from end to end.


    Thanks to fiberglass remarkable strength, engineered to withstand weathering in all types of conditions, we can construct slimmer frames, offering you greater scenic vistas for your investment.

    Vinyl frame may move up to a quarter of an inch in typical circumstances, which could potentially undermine the structural integrity of your home.

    Material Strength

    In contrast to other materials, fiberglass stands as the most robust window framing material within the replacement industry. This means fiberglass can withstand bending and flexing, a level of confidence that neither Fibrex® nor vinyl can replicate.

    Prevents Window Leakage

    Fiberglass expands at a nearly identical rate to glass, ensuring that your windows remain snug and maintain their integrity. This quality makes fiberglass windows highly resilient against leaks, seal failures, and stress cracks, which can otherwise undermine energy efficiency and long-term performance.

    Fiberglass similar

    Vinyl has a significantly greater expansion rate than glass, which could potentially impact the performance of your windows.


    Why D’Angelo & Sons?

    With the seasonal changes we face in Ontario, many common window problems occur. D’Angelo & Sons recognizes these issues and can help to assess your home and protect against them. Air leaks and drafty windows are often due to old windows or damaged insulation. Windows with foggy glass or ones with broken glass are also signs of insulation issues. This can have a very significant impact on your heating and cooling expenses due to the potential for a significant fluctuation in the temperature of your home—not to mention the discomfort! Our window installation includes ensuring proper insulation around your windows to prevent air leaks and drafts. We also offer insulated frames, tinted glass, and triple pane windows, which can help to regulate the temperature in your home.
    Broken latches and hardware on your windows is another common issue many homeowners face. This can cause windows not to open or stay open. Aside from being an inconvenience, this can also create a security issue in your home, leaving your house and family vulnerable.

    D’Angelo & Sons can work with you to assess the best option for your home and needs, offering services in both repair and replacement services.D’Angelo & Sons takes the guesswork out of your window project. One of our experienced professionals will talk with you about your specific needs. We can cater to any window type, including picture, bay, casement, garden, door, sliding, and single/double hung windows. Once we have assessed your needs and communicated them to you, including timeline and budget, we will begin our work. A D’Angelo & Sons certified professional will execute the repair, removal and/or installation of your new windows.
    Our stress-free service even includes painting the trim, including interior trim, creating a seamless and smooth process for you from start to finish. You’re left with beautiful new windows and the peace of mind that comes from knowing you are protecting your family and investing in your home with the highest quality window products.

    What Makes us Different?

    1. We assign a dedicated project manager to minimize headaches.
    2. We provide a transferrable workmanship warranty and manufacturer’s warranty.
    3. We have the highest contractor certification that GAF® offers.
    4. We are constantly undergoing training to improve our practices and processes.

    Top 5 Reasons To Maintain Your Roof

    Save money and add years to the life of your roof.

    Check for winter storm damage.

    Peace of mind knowing your roof is in good hands.

    Keep out unwanted critters.

    Repair minor issues before damage becomes extensive.

    Rated 4.8
    From 3000+ Reviews

    Jen Pescod
    8 month ago
    David Vandenber was absolutely amazing, he went above and beyond today when he visited my property, I was very pleased with his professionalism and honesty. Highly recommend this business!
    Bill Baxter
    8 month ago
    I needed several windows replaced, a new side door, all siding / soffits / eaves / flashing replaced on the house, and the gables re-sided on my garage. D'Angelo's pricing was competitive - add to which, windows and doors are manufactured locally and working with a single service provider to coordinate all the activity rather than try to do that myself was really convenient.
    Nancy Makins
    a week ago
    Very happy we decided to go with D’Angelo & Sons for our new roof. Easy quote process & was able to schedule the work in a very timely fashion, squeezing it in just before the snow came. Roofing crew were great, hardly even knew they were there and they did an awsome clean up job once the work was complete. Rochelle was very professional and a pleasure...
    Rose Jeans
    a week ago
    D'Angelo and Sons did my roof last year and I was very pleased; they were well organized, came when scheduled and worked quickly. The roof looks great. This year, a storm damaged my roof. Carlos Vassallo came out and assessed the damage quickly and gave me an estimate. After dealing with the insurance company for months, we finally got the go ahead...
    Stephen OBrien
    a month ago
    I am very pleased with the repair to my window capping that Steve F did today. He did excellent work and took the time to fix the problem and make it look fantastic. The problem was more complicated than it looked and he was careful to both protect my siding and windows as well as replace the capping perfectly. I would also like to thank the receptionist at D'Angelo...
    Debbie Lavides
    2 month ago
    We recently made the decision to fully replace our roof after losing many shingles to a windstorm. D'Angelo & Sons was very prompt in their response to our query and we had an appointment for an estimate a few days later. David was great; he was punctual and friendly. He patiently explained to us the condition of our roof and showed us pictures so we could see for ourselves. We feel secure in our decision in choosing D'Angelo & Sons for our new roof.
    Sherri Harper
    8 month ago
    When we set out to replace our roof this year, we vowed not to make the same mistakes we did the first time. We researched, asked multiple questions, and Glenn was always there for us and happy to answer any questions we had. There are many, many roofers out there, and choosing D'Angelo was the best choice we could have made. The crew was pleasant and efficient, and also happy to answer any question. We would highly recommend D'Angelo to anyone that asks. I'll be calling Glenn in the spring to discuss our eaves and fascia!
    Jessica Bowen
    a month ago
    My experience with D'Angelo and Sons was altogether positive. From my initial contact with Taylor, we were set up with an appointment with Josh two days later who gave us a full overview of what was needed and the cost. We had two other estimates and found D'Angelo to be comparable in price for the work that needed to be done. They estimated the project would start within 2-3 weeks dependent on weather and their projected timeline was accurate. Jenn was our project manager and she maintain a high level of communication with us throughout the project to ensure that we were aware of what was happening. From first contact with the company to the completion of the project, there was a high level of communication and transparency in the work they were doing. It's been almost 8 weeks since the project was complete and we've been through several significant weather events without issue. I appreciated the level of customer service that was provided by Taylor, Josh and Jenn (and roofing team) and their level of communication throughout the project.
    11 month ago
    My sincere thanks to Steve (Sales) for your patience with all our questions and Brad (PM) for keeping us in the loop every step of the way. Chad, you and your crew did a great job to get the siding replaced and the work area cleaned up, before our backyard birthday party as promised. Rocky - thanks for going the extra mile to make sure the lighting was done just right! This is our second project with D'Angelo & Sons, which again, was delivered the project on time and on budget. More important than the asthetic improvement from the new siding (which you were right about, Steve!), the house is noticably more comfortable inside, due to the air barrier and insulation added. If I hear of anyone looking for a good contractor for roofing or siding work, I will definitely recommend D'Angelo & Sons.
    Steven Reise
    a year ago
    We had a massive project on our 3 storey 130year old Victorian Home. Roof replacement, siding, windows, soffits, fascia, eavestrough and other cladding and capping as required. The crews arrived on time, they worked safe at heights and steep roof pitches, they were kind & courteous, and cleaned up after each job was complete. As a home inspector, I found the workmanship to be top notch and would recommend them to any of my clients if they required work to their home.

    Built 90K +

    Roofs Across The GTA

    At D'Angelo and Sons, we believe in providing our customers with the best roofing solutions and top-notch service. That's why we offer a comprehensive warranty on all our installations. Our warranty ensures that your investment is protected against defects in materials.
    Years In Business
    Team Members Serving You
    Warranty In The Business
    Days A Year Open For Business