Our Company

Northern Window & Door Manufacturing Ltd. is a family owned and operated company with a complete team of manufacturing, sales and installation staff to assist you with your next renovation or construction project.

Our showroom is located at 408 Simpson Street with a broad collection of sliding, casement, awning, bay and bow windows and doors on display. We specialize in custom vinyl windows serving both residential and light commercial clients looking to replace existing windows or who are building new.

Everything we manufacture in our Hardisty Street plant is made to each customer's specifications; we don't just manufacture stock sizes. We manufacture our windows complete from raw stock to finished product.

We offer free in home estimates for installations and will send a salesperson to your home to discuss your options. We offer a complete project from design to installation, all done by our highly trained staff.

A prime advantage to using a local manufacturer like Northern Windows is a quicker turn-around time and accessible, knowledgeable people who can answer all your questions. We have a 20 year warranty and complete service for all our windows.

We have been manufacturing doors since 2001 and in 2008 we purchased and renovated another building on Simpson Street. This location has been converted into expanded factory space for doors. We assemble our doors with a custom frame and unique double weather stripping designed to provide stability and comfort in our northern climate. For selection we offer steel and fibreglass doors with hundreds of glass design options to choose from.

As part of our commitment to the community and to the area we work in, Northern Windows donated land for the Ogden/Simpson St. Veggie Garden and we support countless other local organizations - making us a genuine representative of Thunder Bay's finest.

Northern Windows and Door showroom on Simpson Street, Thunder Bay

In the Community

We love Thunder Bay, and it shows. And when you love Thunder Bay, it loves you back!

Awards & Involvement

Made for our climate weather icon


Our products are built and ENERGY STAR® rated to handle our unique climate.

20-year guarantee badge


Our window and door components are guaranteed for 20 years.

Gallery icon


See some of the recent windows and doors we've made and installed.