Serving York Region & Simcoe County for Over 23 Years

Over 23 Years of Hard Work

Over 25+ Years
of Hard Work

Over 23 Years of Hard Work

All windows are 2020
Energy star compliant

Over 23 Years of Hard Work

BBB Accredited Business
Since April, 2014

Simpson Windows & Doors

The exterior of your home plays an important role; it protects your family from the elements and also offers people a first impression. A properly maintained exterior can increase the value of your property, as well as help you save energy through efficient insulation.

If you want to improve the exterior of your home, call Simpson Windows and Doors. We offer installation services for windows and doors in Barrie, Newmarket, and York. Our technicians produce customized products to help improve the exterior of your home according to your vision.

In all our glass windows and doors, we use Vertex3. This window technology adds strength and energy-efficiency to any of our glass products.

Call Today for New Windows and Doors

For information on new windows and doors in Barrie, visit our locations in Newmarket and Barrie. To get ideas of what we can do for you, see examples of our work at our Newmarket showroom or click through our online gallery.

Fill out our online form or call 705-252-9111 today to get a quote of our services for your next home project.

Choose a Service That’s Right for You

If you need to improve your home’s look, choose Simpson Windows and Doors in Barrie. We offer you the following services:

  • Installation of new windows (bay, sliders, double hung, casement, awning, fixed casement)
  • Custom entry door systems, man doors, and garden doors
  • Installation and replacement of customized doors for patios and gardens
  • Full removal of frames
  • Skylight installation & replacement
  • New siding patio doors

Get a Free Quote


With more than 25+ years of experience in the exterior renovation industry, Simpson Windows & Doors is your reliable source for sales and installations of energy efficient products from the most trusted and respected manufacturers. Some of the reasons to choose Simpson Windows & Doors include:

Energy Star Logo

Energy Star Rating

Energy Star is a U.S. Environmental Protection Agency (EPA) voluntary program that helps businesses and individuals save money and protect our climate through superior energy efficiency. All of the products we sell are Energy Star rated.


Fully Insured

All of our technicians are fully insured for liability as well as WSIB (Workplace Safety and Insurance Board) for your protection.

BBB Logo

Better Business Bureau

Simpson Windows & Doors is a BBB Accredited Business with a rating of an A-.

Lifetime Warranty on Greenview Products

Lifetime Warranty on Greenview Products

  • Lifetime coverage on accidental glass breakage.
  • Fully transferable at no charge
  • (Warranty remains for lifetime of product after being transferred).
  • Non-Prorated.
  • Lifetime coverage on seal failure.
  • Lifetime coverage on all hardware.


Service Area

Simpson Windows & Doors serves customers in communities throughout the York Region,
offering a full line of exterior home improvements at competitive prices.