We are the leading supplier and installer of replacement vinyl windows and doors in Niagara Region Area. We offer one of the largest selections of vinyl windows & doors in the Ontario. Our windows are a perfect combination of strength, energy-efficiency, and exceptional quality.

We established in 1999 with a focus on quality products and professional installations. Over the last 20 plus years, we have been providing our clients with the best quality product. Today, OWDPI is well know for their best services & Quality near GTHA area.

We believe that replacing your windows should only be done once. This can only be achieved by starting with a product designed, tested and built to perform and last a lifetime. Our employees and distributors take great pride in making and selling our products.

Ontario Windows & Doors Pro Inc (OWDPI) offers the best warranty in the business and will make every effort to ensure your full satisfaction.

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Tell us about your project in Niagara Windows & Doors Replacement and our Window & Door Replacement specialist will help you with it!

Why Ontario Windows and Doors Pro?

We have experience in addressing your home’s needs to provide you with cooler homes in the summer and warmer homes in the winter, without paying more on utility bills. Moreover, not just our products are of the finest quality, our installation staff is also well-experienced and trained. So when you choose us, you get the best quality products, skilled professionals, and a comfortable home at reasonable prices.

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