Configuration
A bay often combines a larger centre window with angled side windows.
WINDOORLY / WINDOW STYLES
Bay Windows
Bay windows combine angled window sections that project beyond the exterior wall, creating a distinct focal point and bringing light into the room.
Getting to Know the Style
About Bay Windows
A bay window is an assembly that projects beyond the wall, commonly with a larger centre section and angled side sections. The arrangement changes both the interior space and the exterior appearance, so it calls for more planning than a simple flat-window replacement.
Finding the Right Fit
Where they work well
A bay can be considered in a living room, dining room or bedroom where you want a focal point and views in several directions. The projection may create a deep sill or seating area, depending on the design. Outside space, roof details, support and the existing structure must all be considered.
Explore Your Options
What to consider
The right choice depends on your home, the opening and how you use the space.
Room design
The projection can create space for a sill or seating, depending on the design.
Installation
The existing opening, roof and structural support need to be assessed.
Make It Your Own
Design and product choices
Consider these details as you compare options for your home.
Window configuration
Discuss the size of the centre and side sections and whether any sections should open for ventilation.
Interior finish
Consider the depth of the sill, trim and whether you want to incorporate seating or another finish.
Exterior details
The roof, support and weather protection must suit the projection and your home.
Planning Your Project
Assessment and installation
We assess the existing opening and structure, take measurements and discuss support, exterior finishing and any scope beyond the window itself. The feasibility, timing and price depend on the condition of the home and the proposed design.
Looking After Your Windows
Care and maintenance
Clean each glass section and frame, inspect accessible seals and finishes, and keep drainage paths clear as directed. Report signs of water intrusion or movement around the window for assessment.
FAQ
Frequently asked questions about bay windows
What is the difference between a bay and a bow window?
A bay commonly has a larger centre section with angled sides; a bow uses several sections to create a gentler curve. Actual designs vary.
Can the side windows open?
Operable side sections may be available. The choice depends on the design, size and exterior clearance.
Can a flat window be replaced with a bay?
Possibly, but the wall, support, exterior projection and applicable requirements need to be assessed before confirming the work.
Does a bay window always include a seat?
No. Seating depends on the size, interior finish and structural design. Discuss it during planning.
Plan your project
Helpful window & door guides
Practical advice to help you diagnose a problem, compare repair and replacement, and plan the work.
Window Repair vs Replacement in Canada
A practical decision guide for Canadian homeowners: when a window can be repaired, when replacement makes more sense, and how to compare the options.
Read the guide →Window Replacement Cost in Canada (2026 Guide)
A practical 2026 budget guide to Canadian window replacement, including per-window ranges, what changes the price, and how to compare quotes.
Read the guide →How Long Do Windows Last in Canada?
A practical guide to window lifespan in Canadian conditions, the parts that fail first, and how to tell whether repair or replacement is the better investment.
Read the guide →More Styles
Explore other window options
Casement Windows
Casement windows are hinged at the side and open outward, offering a clear view and ventilation from an operable sash.
Awning Windows
Awning windows hinge at the top and open outward from the bottom, making them a useful option for ventilation in a range of rooms.
Slider Windows
Slider windows open horizontally along a track, providing ventilation without a sash swinging into the room or outdoors.
Bow Windows
Bow windows bring several window sections together in a gentle outward curve, creating a broad view and an architectural feature.
Ready to transform your space?
Request a free, no-obligation estimate for your window or door project today.