(905) 387 3000

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

Roofing Services
Roofing Services
Roofing Services |D'Angelo and Sons
In-House Bin Services

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.

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

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.


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.


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.


Fixed windows, also known as picture or architectural windows, remain permanently closed and serve the purpose of framing specific outdoor views.


Our Contemporary fixed window offers expansive size potential and minimal sightlines, allowing for impressive walls of glass.

Horizontal & Vertical

Sliding or gliding provide both convenience and style for fresh air with high performance, featuring ventilation through a single operable sash.

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.


Achieve your desired style with the ultimate design freedom of custom-shaped windows, whether it’s contemporary sloped or intricately detailed traditional windows.

Boost Your Home’s Value

and lower the maintenance cost!

Did You Know?

Windows increase a home’s beauty, security and represent up to 30% of a home’s energy efficiency.



Colour Options


Glass Options

Grilles Options

  • Georgian
  • Flat
  • Pencil
  • Square Pencil

Why Choose Us?

  • More than 40 years of experience
  • WSIB work insurance cover is available
  • A wide range of services, including siding replacement, installation, and replacement
  • The best warranty you can find
  • We’re a family-owned and operated company
  • All in house crew

Request a FREE Inspection

Why Fiberglass Windows?


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.

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

Fiberglass has similar stability to the glass in your window.
Fiberglass has similar stability to the glass in your window.

Our Work Gallery

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?

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

Google Reviews

16:15 20 Mar 19
I contacted them for a "Free Inspection" of my roof as I needed a minor repair from wind damage. The free inspection is actually $150 plus HST upfront which can be credited towards any repairs. Booked appointment and crew showed up a couple weeks later. Very good to deal with and thorough in their inspection. What came next was a bit of a shock. $500 quote for repairs on top of the $150 I already paid as they have a "minimum" charge. (They were on my roof for about 10 minutes). Never was this mentioned in any of the conversations I had with them. I could have refused, but they were already there ready to do my repairs and I wanted it done. Workmanship was great, but just be aware and ask questions about the "free inspection" and minimum fees before agreeing to any repairs.
Debbie Lavides
Debbie Lavides
13:15 06 Mar 19
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.
Mohammed Almakadi
Mohammed Almakadi
02:06 14 Apr 19
Jeremie Demirci has provided me with the best experience. He is very humble, knowledgable and patient. He came on time and took all the time I needed to show my around my house to explain what is needed and what the best options will be. He helped me check into my attic after honestly explaining what the current standards are with regards to attic insulation and how this will help me in the future in terms of house temperature and shingles longevity. He was not pushing me into any decision and my wife and I felt very happy with the experience so far. I will follow-up with another review after completion.Follow-up:I went with custom shingles. The order took longer than expected and once they started, the installation was again longer than expected because they needed to have experienced roofers because of the shingles I went with. I ended up waiting longer for the job to be completed because the order was many shingles short and they placed another delivery order.The guys did a great job despite all the delays, but the cleaning after for pieces of old broken shingles and nails was not at the expected level and until today April 12, 2019 my kids still pick these things up around the house!!! They broke one of my trees with one of their ladders. I would rate them as 3-4 at this point. Will update when I use their maintenance service they promised to provide.
Daniel DiSabatino
Daniel DiSabatino
17:53 27 Apr 19
Sales Manager David Vandeburg was very knowledgeable and professional. His experience and expertise was especially helpful in our decision to have D'Angelo & Sons do our roofing project. David even did some emergency repairs on our current roof to hold us over until they could come and put on the new shingles.
Sherri Harper
Sherri Harper
02:42 20 Nov 18
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!
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