Casement windows win for airflow and wide views, while awning windows win for rain protection and high placement.
Both windows open outward with a crank. Both seal tight when you close them. The real difference is where the hinge sits, and that one detail changes how each window works in your home.
Southern Illinois brings hot, humid summers, heavy spring rain, and cold winters. So the right window depends on the room, the wall, and the weather it faces.
The Window Source of Southern Illinois helps local homeowners pick new and replacement windows. This guide shows how casement vs. awning windows compare, so you can choose with confidence.
Key Takeaways
- A casement window hinges on the side and swings out like a door.
- An awning window hinges at the top and tilts out from the bottom.
- Casement windows catch side breezes and open the full frame.
- Awning windows stay open in light rain because the glass shields the opening.
- Casement windows suit tall, narrow spaces. Awning windows suit short, wide spaces.
- The Window Source of Southern Illinois offers a free in-home estimate and a lifetime warranty.
What Is a Casement Window?
A casement window hinges on one side and swings outward like a door.
You turn a crank, and the whole sash pushes out. The window opens the full height and width of the frame. A latch pulls the sash tight against the frame when you close it.
Casement windows usually stand taller than they are wide. Many homeowners put them in kitchens, bedrooms, and living rooms.
What Is an Awning Window?
An awning window hinges at the top and tilts outward from the bottom.
You turn a crank, and the bottom edge swings out. The open sash looks like a small canopy over the window.
Awning windows usually run wider than they are tall. Many homeowners put them in bathrooms, basements, and high on walls.
Casement vs. Awning Windows: Side-by-Side
Casement windows open wider, while awning windows handle rain better.
Hinge Location
The hinge decides how the window moves, and that changes everything else about it.
Casement Window: The hinge sits on the side of the frame. The sash pivots like a door, so the whole window swings out from one edge. You choose a left-hinged or right-hinged window. Pick the side that opens toward the breeze or clears your furniture.
Awning Window: The hinge sits at the top of the frame. The sash pivots from above, so the bottom edge moves out and up. The top stays fixed, so the window never leans into your room.
Good to know: Both styles swing outward. Check the space outside the window before you order.
How It Opens
Both windows open outward with a crank, but they open in different directions.
Casement Window: You turn a crank, and the sash swings out to the side. You can leave it partly open or push it wide. Turn the open sash toward the wind, and it pulls air inside.
Awning Window: You turn a crank, and the bottom edge tilts outward. The open sash looks like a small canopy over the gap. You can open it a little for a light breeze or far for more air.
Good to know: The crank does the work for you. You do not lift or push a heavy sash, so both windows suit anyone who finds a sliding or double-hung window hard to open.
Opening Size
Casement windows give the largest clear opening, and awning windows give a smaller gap.
Casement Window: The window opens the full height and width of the frame. Nothing blocks the middle, because there is no center bar. You get a wide view and a lot of air. That also helps when you need to clean or pass something through.
Awning Window: The window opens only part of the frame. The gap runs along the bottom edge and shrinks as the sash tilts. You get less air per opening, but the flow stays gentle.
Good to know: A smaller gap also means fewer surprises. Wind pushes less hard on a small gap than on a full sash.
Best Shape
Casement windows fit tall, narrow openings, and awning windows fit short, wide ones.
Casement Window: A taller frame gives you a longer sash and a cleaner look. Casements also work in wider frames, but a very wide sash gets heavy and swings a long way. Most homeowners keep them narrow.
Awning Window: A wider frame gives you a longer gap for air. Awnings work well above a large fixed window or in a row along a wall. A very tall awning sash tilts out far, so most stay short.
Good to know: Measure the opening first. Your estimator can tell you which shape fits your wall.
Airflow
Casement windows move more air, and awning windows move air more evenly.
Casement Window: The open sash acts like a scoop. Turn it toward the wind, and it pulls fresh air into the room. This cools a room fast on a breezy day. Open a casement on each side of the house to build a cross breeze.
Awning Window: The tilted sash lets air in at an angle. Warm air rises and leaves through the top, while fresh air comes in below. You get steady air without a strong draft. This works well in a bedroom at night.
Good to know: Southern Illinois summers run hot and humid. A cross breeze from casements helps on a mild evening. Awnings keep air moving when the weather turns damp.
Rain
Awning windows keep fresh air coming in light rain, while casement windows take more rain.
Casement Window: The open sash swings to the side, so the gap faces the weather. Rain can blow in when it picks up. Close it when the rain gets heavy.
Awning Window: The open sash acts like a small roof over the gap. Light rain runs off the glass, so you can keep air moving during a drizzle. That helps in a bathroom or a basement, where moisture builds up fast.
Good to know: Southern Illinois gets heavy spring storms. Close and lock both windows before a strong storm hits.
Operation
Both windows use a crank, and both last longer with gentle care.
Casement Window: You use a crank to open and a lock to seal. The crank and hinge are the moving parts, so keep them clean. Do not force a stuck sash.
Awning Window: You use a crank to open and a lock to seal. The same care applies. Wipe the hinge area and call your installer if the sash sticks.
Good to know: Follow these steps for either window:
- Wipe dust and dirt from the crank area.
- Turn the crank slowly, and stop when the sash stops.
- Close and lock the window before you leave the house or a storm arrives.
Screen
Both windows keep the screen on the inside, because the sash opens outward.
Casement Window: The screen sits inside the window, so the sash swings out past it. You see the screen from inside the room and take it off from inside.
Awning Window: The screen sits inside as well. It stays put while the sash tilts out over it.
Good to know: Inside screens stay out of the rain and sun, so they last longer. Remove them for cleaning and put them back in a dry spot.
Cleaning
Many casement and awning windows are easy to clean from inside.
Casement Window: On many models, the sash swings open far enough for you to reach the outside glass from inside. You wipe both sides without a ladder.
Awning Window: On many models, the sash tilts open, but the outer glass can stay hard to reach. A long-handled cleaning tool helps. Low windows are simpler than high ones.
Good to know: Ask your estimator to show you how your chosen window opens. Reach differs by size and model.
Locking
Both windows lock by pulling the sash tight against the frame, and that tight seal keeps drafts and moisture out.
Casement Window: Turning the handle pulls the sash into the frame. Many casement windows lock at more than one point, which holds the sash firmly shut.
Awning Window: The lock pulls the top-hinged sash into the frame the same way. Awnings often sit high on the wall, so they stay out of easy reach from outside.
Good to know: A tight seal helps your comfort and your energy bills. A good install matters as much as the lock, because a poor install leaves gaps that waste good glass. Both styles work with Low-E glass and double-pane units. Learn more on our Low-E glass page.
Common Rooms
Casement windows fit rooms you use daily, and awning windows fit spots that need air and privacy.
Casement Window: Homeowners use casements in kitchens, bedrooms, and living rooms. Put them where you can reach the crank and want a clear view. A casement over a kitchen sink works well, because you turn a short crank instead of stretching across the counter.
Awning Window: Homeowners use awnings in bathrooms, basements, and high on walls. Put them where you want fresh air, privacy, or rain protection. A high awning window lets air in without letting eyes in.
Good to know: You can mix both styles in one home. Use casements for the main rooms and awnings for the small, high, or damp ones.
Where Does Each Window Work Best?
Casement windows fit spaces you reach easily, while awning windows fit spaces that are high or exposed to rain.
| Room or Spot | Better Pick | Why |
| Kitchen over the sink | Casement | The crank sits within easy reach |
| Bedroom | Casement | Wide opening, plus a clear view |
| Living room | Casement | Slim frame and open view |
| Bathroom | Awning | Fresh air and privacy from a high spot |
| Basement | Awning | Short, wide space and rain protection |
| High wall or hallway | Awning | Vents air without a view inside |
| Under a large fixed window | Awning | Adds airflow to a wide view |
Check the space around the window too. Both styles swing outward. Do not put either one where the sash blocks a walkway, deck, or patio.
FAQs
What is the main difference between casement and awning windows?
Casement windows hinge on the side and swing out like a door. Awning windows hinge at the top and tilt out from the bottom.
Are casement windows better than awning windows?
Casement windows give better airflow and a wider view. Awning windows give better rain protection. The best pick depends on the room and the wall.
Can you leave an awning window open in the rain?
Yes, in light rain. The open sash shields the gap. Close and lock it in heavy or wind-driven rain.
Do casement windows seal better than other windows?
Casement and awning windows both seal tight because the crank pulls the sash into the frame. A proper install keeps that seal working.
How do I get a quote from The Window Source of Southern Illinois?
Call 618-897-2268 or fill out the quote form on our site. An estimator schedules a free in-home visit and walks you through your options.
Ready to Choose Your Windows?
Not sure which style fits your home? The Window Source of Southern Illinois offers a free in-home estimate and a lifetime warranty. Call 618-897-2268, and an estimator will measure your openings and show you the right options.