Windows / Hopper
Hopper window installation
A hopper window is hinged at the bottom and tilts inward from the top. It is the style you most often see in basements and utility spaces, and in small openings high on a wall.
How it works
Releasing the latch lets the top of the sash swing down and in. Air enters over the top of the tilted sash. Because it opens inward, nothing projects outside.
Where it fits well
- Basements and below-grade openings, often in a window well
- Small, high openings where an inward tilt is fine and an outward swing is not
- Ventilating a space without giving up exterior clearance
What to weigh
- The open sash intrudes into the room — keep the area below the window clear
- In a window well, size and configuration may need to meet basement egress requirements — we will confirm
- Usually a smaller unit; frequently replaced alongside foundation or waterproofing work
Questions
Hopper — good to know
Do hopper windows meet basement egress code?
Some sizes and configurations can, with an appropriately sized window well. Many standard hoppers do not. If the basement is being finished as living space, tell your estimator so the opening is specified for egress.
Does an open hopper window let rain in?
Because it tilts in from the top, a hopper is more exposed to rain than a top-hinged awning. Close it in wet weather.
Other window styles
More window styles
Next step
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