Insights > Category > Posted: 2025-Apr-23, Updated: 2025-Jun-09

Choosing Windows
Window Types

Ottawa, Kanata, Stittsville, Manotick Window Types
Are you tired of dealing with windows that just don't seem to meet your needs? It's possible that the existing ones were installed based on a generic architectural plan, which could be causing inefficiencies in your home.

In this article:

Make function work for you

If you're replacing your windows, this is your chance to optimise every room for performance, usability, and value, not just appearance. Before you request a quote, walk through your home and ask: Does this window type really make sense here?

Rethink before you replace

  • Not using a window for ventilation? Replace it with a picture window—more efficient and less expensive.
  • Outdoor deck in the way? Swap outward-opening casements with sliders or hung windows to preserve movement space.
  • Hard-to-reach locations? Consider crank-operated awning windows for easier operation and better ventilation.

Understanding common window types

Picture Window

Large unobstructed picture window providing a clear outdoor view with no opening features

Fixed non-operational windows that provide unobstructed views. They can be singular or combined with other types for ventilation or enhanced design. They can also be used as transoms over doors. Picture windows are the most flexible in size and the most energy-efficient window type.

Ventilation
None
Energy Efficiency
Excellent
Ease of Use
Excellent
Security
Excellent
Ideal Use Cases
Living rooms, stairwells, and feature areas
Relative Cost
Low

Fixed Custom

Custom-shaped fixed windows adding architectural detail without ventilation

Also known as architectural windows, these are picture windows cut into custom shapes like circles, octagons, or angles. They add decorative flair and can fit unusual spaces while maintaining excellent energy efficiency.

Ventilation
None
Energy Efficiency
Excellent
Ease of Use
Excellent
Security
Excellent
Ideal Use Cases
Decorative/high spaces
Relative Cost
Medium

Casement

Energy-efficient casement window hinged at the side and opened with a crank

The most common operational window, casements open outward with a crank, providing excellent ventilation and tight weather seals. Available with various crank handle styles for convenience and aesthetics.

Ventilation
Very Good
Energy Efficiency
Excellent
Ease of Use
Very Good
Security
Excellent
Ideal Use Cases
Bedrooms, main living areas
Relative Cost
High

Awning

Awning window hinged at the top, ideal for airflow and protection from rain

Hinged at the top and opening outward, awning windows provide excellent ventilation even during rain. Ideal for hard-to-reach spots such as kitchens and basements.

Ventilation
Good
Energy Efficiency
Very Good
Ease of Use
Excellent
Security
Good
Ideal Use Cases
Kitchens, basements, bathrooms
Relative Cost
High

Slider

Horizontal sliding window offering easy operation and modern appeal

Sliding horizontally like patio doors, slider windows are perfect where vertical space is limited. They provide good ventilation and do not obstruct exterior areas.

Ventilation
Good
Energy Efficiency
Moderate
Ease of Use
Very Good
Security
Good
Ideal Use Cases
Basements, tight exterior clearances
Relative Cost
Medium

Single/Double Hung

Traditional single or double hung windows with vertical sliding sashes

Hung windows open vertically, with single-hung allowing the bottom sash to move, and double-hung allowing both sashes to operate and tilt for easy cleaning. Classic and versatile.

Ventilation
Good
Energy Efficiency
Good
Ease of Use
Good
Security
Good
Ideal Use Cases
Traditional homes, patios, walkways
Relative Cost
Medium

Bay Window

Bay window projecting outward to expand interior space and light

A three-sided projection combining different window types, bay windows add floor space and can serve as seating or storage areas. More economical than bow windows and common in newer homes.

Ventilation
Depends on configuration
Energy Efficiency
Depends on configuration
Ease of Use
Depends on configuration
Security
Depends on configuration
Ideal Use Cases
Traditional homes, home front & backs
Relative Cost
High

Bow Window

Elegant bow window with multiple panels creating a gentle curve and panoramic view

Similar to bay windows but with four to six window sections forming a curve, bow windows provide elegant architectural appeal. Usually made up of picture and casement windows, often suited for Victorian or older-style homes.

Energy Efficiency
Depends on configuration
Ease of Use
Depends on configuration
Security
Depends on configuration
Ideal Use Cases
Traditional homes, home front & backs
Relative Cost
Very High
tip-lightbulb

Tip: When evaluating window types, think holistically about how each one interacts with your home’s architecture, energy performance goals, and intended use of space. For instance, bay and bow windows can add dimension and passive solar gain, but may not suit smaller rooms or shaded exposures. On the other hand, picture windows maximise views and insulation but limit ventilation. Choosing the right window type isn't just about functionality, it's about optimising how your home lives and performs as a whole.

Summary:

Choosing the right window type means balancing function, style, energy efficiency, and budget. Each option has strengths that suit different needs, so take the time to assess what works best for your home. 

Infographic -
What's to know about Window type

an introductory image for an infographic - what's to know about window types

Choosing Windows - Window Styles

Ottawa’s diverse neighbourhoods offer a range of architectural styles, from historic Victorians and Craftsman homes

Window efficiency by window type

beautiful window typetypes with 1st prize going to picture window

Pros & Cons - Sliding Windows

an illustration of a sliding window

Typical custom window shapes

an illustration of a several standard custom window shapes

What's to know about Bay and Bow Windows

an illustration of a a bay and bow window beside each other

Pros & Cons - Awning Windows

an illustration of an awning window

Pros & Cons - Casement Windows

an illustration of an a casement window

Pros & Cons - Hung Windows

an illustration of an a hung window

Not sure which window type is right for your home?

Contact us today for expert advice, personalized recommendations, and a no-obligation quote. Let’s find the perfect windows for your space.

Request information | 613-838-2211 | Request a quote

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Windows
Entrance Doors
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Installation
Bayview Windows
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