Flat Window to Custom Bay Window Conversion in North York

The owners of this North York home wanted the front of the house to look different. Two flat windows sat in the brick, and they were ready for something with more shape and depth.

NorthShield turned both openings into custom bay windows, each with a casement at either end and a fixed pane in the middle. Every unit is an ENERGY STAR product, and the whole job, structure and all, was done in one day.

The opening after the old flat window came out, before the bay structure was built

From Flat Openings to a New Shape

This wasn’t a like-for-like swap. Once the old flat windows came out, the openings had to carry a window that sits out past the wall, so the crew built that projection on site before any glass went in.

The layout is a classic three-part bay: a fixed centre pane for the view and an opening casement at each end for fresh air. You can see more layouts on our bay windows page.

New bay window set on its wood support structure, with the seat board ready for finishing

Wood Support, Insulation and Aluminum Flashing

Each bay sits on a wood support structure, insulated before it was closed in. Outside, the new structure is wrapped in aluminum flashing, so there’s nothing to paint or stain on the exterior.

The homeowner chose to finish the interior woodwork themselves, so we left the inside ready for their trim and seat finish. Not sure whether a bay or a bow suits your home? Our guide comparing bay and bow windows covers the differences.

View through the new double-glazed bay window, low-E glass with argon gas

Double Glass With Low-E and Argon

All of the glass units on this project are double glazed, with a low-E coating and argon gas between the panes. The frames are white vinyl, which suits the tan brick and the white soffits.

Low-E glass reflects heat back where it came from, which helps in both winter and summer. Here’s a plain look at the pros and cons of low-E coatings.

Built, Installed and Cleaned Up in One Day

The crew did all of it in a single day: building the bay structures, installing the windows and flashing the outside. Before they left, they cleaned up and took the old windows away for disposal. The house now has two custom bay windows that change how it looks from the street.

Project Gallery

Bay Window Projects Across North York

NorthShield handles window replacement in North York and nearby areas such as Willowdale, Don Mills, Downsview and Thornhill. Our windows and doors are made in our own factory and installed by our own crews.