Strengths
- An operable sash for ventilation where you want it.
- Crank operation to try at your actual counter height.
- Can be considered alongside a fixed section to balance view and opening.
Windows
Casement window
The moving window section, called the sash, is hinged at the side and opens outward. Consider it when ventilation and crank operation matter in daily use.
Diagram in closed position.
THE ESSENTIALS
Is it right for your home?
Considerations
- An open sash projects into the outdoor space.
- The handle must remain accessible behind furniture and coverings.
- Opening direction needs to account for nearby obstacles.
A PROJECT IN PICTURES
Opening starts with reaching the control.
In this bay, the handles sit at the bottom of the glass, behind a deep sill. For your casement window, consider the control height and what will sit in front of it: furniture, a counter or a plant.
Composition example. The photograph shows closed windows; the diagram explains the casement movement.
See project photographsYOUR QUESTIONS
Before you choose.
How should I choose the hinge side?
Start with how you will use it: reaching the controls, outdoor obstructions and neighbouring sashes. Then confirm the direction on a drawing with the viewing side labelled. A verbal description alone can be misunderstood.
Can a casement replace a sliding window?
It is an option to assess. The outward swing, wall construction and available sizes need checking. Use the site visit to compare visible glass area and the position of the controls as well.
Is any casement suitable for a basement bedroom?
No. The opening type alone is insufficient. Vaillancourt documents a removable-mullion configuration, for example, but the exact model, clear opening, window well and installation must be assessed for the specific project.
Must I open it fully to ventilate?
Not necessarily. Set the opening for the conditions and the manufacturer’s instructions, keeping the sash clear of obstacles. Air movement also depends on wind and the home’s other openings.
EXPLORE FURTHER
The details, at your pace.
Room scenarios, manufacturers and options
CHOOSE FOR YOUR ROOM
The right casement, in the right place.
Choosing a casement also means picturing the everyday movement: reaching the crank, opening without blocking a path, then closing and locking comfortably. The hinge side can make a real difference in a kitchen, home office or grouped window layout.
Above a kitchen sink
Try the movement with the actual counter depth in mind. You should be able to reach the crank without leaning on the sink. Check the faucet, blinds and items on the sill against the location of the controls.
A home office with a view
An operable section close to the desk can make ventilation easier without moving furniture. Consider the desk’s position too: glass divisions and blinds shape the view from your chair, not just the look of the exterior.
Beside a large fixed section
Draw both side windows open before choosing the hinges. Check the swing, access to controls and balance of the section widths rather than automatically specifying two identical sashes.
THE WINDOW IN YOUR ROOMPLAN VIEW
Three details around the counter.
The outdoor walking route
Draw the sash open beside the circulation area. Label the hinge side on a clearly identified indoor or outdoor view.
Reaching the crank
Try the movement at the actual counter depth. Leave room around the faucet and blinds to reach both the crank and lock.
Both glass surfaces
Ask for a cleaning demonstration for the selected model. Do not assume an open sash makes the whole exterior face accessible.
Use these scenarios to prepare for a visit. Height, dimensions, room constraints and the selected product determine what will actually suit the opening.
In everyday life
- Daylight
- View shaped by the section layout
- Which view and daylight do you want to preserve?
- Ventilation
- Crank-operated opening sash
- Where do you want an opening, and how often will you use it?
- Privacy
- Depends on glass and coverings
- What can be seen from the street or yard?
- Clearance and access
- Projects outwards
- What furniture, walking routes or obstacles need to be considered?
- Maintenance
- Glass, crank and seals
- How will you reach the glass and moving parts?
- Is there a path or patio directly outside?
- Can you reach the crank without leaning far forward?
- Which sections of the composition actually need to open?
Installation and maintenance
Check on site
- Check outdoor clearance and opening direction.
- Inspect the existing frame and finishing transitions.
- Check handle positions against planned blinds.
Planning for upkeep
- Ask for a demonstration of access to both glass surfaces.
- Confirm care instructions for the opening mechanism, seals and screen.
Documentation and sources
FenXtra lists Vaillancourt among its window suppliers. Vaillancourt publishes a casement family with crank operation.
Opening types and configurations to explore. Confirm products, options and availability with FenXtra.
Manufacturers and brochuresComposition, finishes and glazingCasement window