Serving the Community for 28 Years
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Vinyl Windows

All Northstar window frames feature a full 3 ¼” mulit-chamber construction for maximum strength and rigidity. All sashes and frames are fusion miter welded for a positive seal and improved strength. The recessed drain covers utilize reticulated foam to keep bugs out while allowing water to drain. All windows are made from 100% maintenance free white vinyl (or clean colored vinyl) and will not warp, crack, peel or rot, and will never need painting).

Our vinyl windows are available in Chestnut brown, Ivory, Sandalwood, Hickory and White. Colour options are included in grills, and screen frames match the exterior window colour. All Northstar windows are certified by the AAMA (American Architectural Manuacturers Association) and the CWDMA (Canadian Window & Door Manufacturers Association).

Casement/Awning Windows

Casement and awning windows offer maximum thermal performance. The venting sash pivots for easy cleaning from inside the home. All casement and awning windows are secured with multipoint locks for easy operation and maximum security.


Bay & Bow Windows

All bay & bow windows are custom made in the factory and come with a standard white melamine head and seat to eliminate the need for painting. Energy efficiency can be improved with a factory insulated head and seat. An optional oak veneer finish is available for inside the window to add beauty and warmth. Bay windows are available in 30° or 45° projections and bow windows are available in 10° or 20° projections and four or five lite designs.

Single/Double Hung Windows
A spring loaded balance system enables the sashes to operate smoothly and tilt in for easy cleaning. Screens are removable from the inside and weatherstripping prevents air filtration, allowing for year-round comfort.



Picture Windows

Fixed and picture windows provide the greatest insulation, yet still emit light into the room and offer a picturesque view of the outside.



Custom shapes

Customize your home for maximum beauty by allowing Dundas Doors and Windows to design and install custom windows for your existing or new home. There are no limitations on what we can do for your unique home or renovation.

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3135 Universal Drive, Unit 12
Mississauga, Ontario, L4X 2E6
Phone: (905) 896-1448
Fax: (905) 896-1466