All windows provide some ventilation and let in sunlight but, besides those functions, they can vary in several ways. Each type of window is ideal for specific building layouts. Narrowing down your window options starts with identifying the most common window types. Here is a general guide to get you started:

Single or Double-Hung

These are the most common type of windows you will see on buildings. The difference between a single and double-hung window is that single-hung has a moveable lower sash with a fixed upper sash, while double-hung windows have a lower moveable sash. You would get better ventilation with a double-hung window than you would with a single-hung window. Both can work in most locations and have a classic look to them. They do not offer as much open area as a slider window or casement and are more likely to leak air than casements.


These windows open out and typically pivot from side hinges. Many have large glass panes that let in ample amounts of light. They offer more ventilation than other window types and seal tightly, making them energy efficient. Casement windows should not open into busy areas as they can be a hazard.


They open out by pivoting from the top sash, which is operated by a crank. Commonly paired with large picture windows and placed on the side, bottom, or top of a picture window for ventilation. They are also installed above doors like a transom window. Since they open out, it is best not to install them near walkways so that it does not obstruct a busy path.


These windows are ideal in areas where airflow is not a priority. Picture windows are often placed in the middle of a wall to provide broad views and ample sunlight. Since they do not open, picture windows are less likely to leak air than operable windows. Although, their large glass panes can let out or draw in more heat than an insulated wall – even if you use double-pane, energy-efficient glass.


Made of glass slats with metal clips that are used to open and close in unison like a louver. They are inexpensive and better off for buildings in moderate climates where air conditioning is not needed. They do not offer much of a view but do provide maximum airflow. Jalousie windows tend to be less secure than other window types.


Architects like bay windows because they are excellent for creating angles and projects on a structure. They let light in from different angles, and most include side windows that can be opened to let air in. Commonly found in family rooms or kitchens, bay windows can be used as a seat or to place plants.

Also Read: Opt for Certified Window Installers to Avoid Common Installation Problems


These windows open sideways and offer unobstructed views with abundant ventilation. Although, they cannot be sealed as well as casements. Slider windows are typically used for egress windows in below-grade bedrooms or basements because of their large openings and ease of operation. Utility windows near the top of a basement also tend to be sliders. They have basic seals, no mechanical parts other than their lock, and no tensioning mechanism. Sliders are one of the most affordable windows because of their simplicity.

To ensure you pick the best window or replacement windows in Vaughan for your project, contact Concord Window and Doors. We have many options to choose from with competitive prices. Check out our windows and doors shop or call us today for a consultation.