Casement vs. Double-Hung Windows: Which Should You Choose?
Advertising disclosure: United Renewals is free to use. We may be compensated when you request quotes through our partners, which can affect which offers appear. See “How We Make Money” in our footer for full details.
Get free window quotes across styles from local installers
Get free quotesThey open completely differently — and that drives everything
A double-hung window has two sashes that slide vertically; a casement window is hinged on the side and cranks outward like a door. That mechanical difference decides the rest: casements press tight against the frame when closed (a great air seal), while double-hungs slide (slightly less airtight but far more familiar and versatile). Neither is universally "better" — they suit different rooms and priorities.
Casement vs. double-hung
| Factor | Double-hung | Casement |
|---|---|---|
| Installed cost | $400 – $900 | $500 – $1,200 |
| Energy efficiency | Good | Best — tight seal when closed |
| Ventilation | Top or bottom half | Full opening — catches side breezes |
| View | Divided by the meeting rail | Unobstructed |
| Cleaning | Easy — sashes tilt in | Reachable, but exterior over obstacles |
| Window AC unit | Yes | No |
| Best for | Most rooms, traditional homes | Over sinks, tight spots, max efficiency |
Prices match our window replacement cost guide. Both are available in vinyl, fiberglass, and wood.
When double-hung wins
Double-hung is the default for most homes — it fits traditional and modern architecture, both sashes tilt in for easy cleaning, and — unlike a casement — it accepts a window air conditioner. It's also usually a bit cheaper. If you want one versatile window for bedrooms, living rooms, and everywhere in between, double-hung is the safe, classic pick.
When casement wins
Choose casement when energy efficiency and airflow matter most. Because it seals against the frame, it's typically the most airtight operable window, and it opens fully to catch side breezes. It's ideal over a kitchen sink or countertop (an easy crank vs. reaching to lift a sash), for unobstructed views, and where you want to meet egress requirements in a bedroom. The trade-offs: no room for a window AC, and the crank hardware is one more thing that can eventually wear. Also weigh the glass package and frame material, which affect efficiency more than style alone.
Pro tip from our network contractors
Mix styles by room rather than picking one for the whole house — casements over the kitchen sink and in bedrooms for egress and efficiency, double-hungs everywhere else for versatility and to keep the option of a window AC. A good installer will help you match the style to each opening.
Compare free window quotes by style near you
Get free quotesFrequently asked questions
Are casement or double-hung windows better?
Casement windows are more energy-efficient and offer better ventilation and views, while double-hung windows are more versatile, easier to fit with a window AC, and often cheaper. The best choice depends on the room — casement for efficiency and hard-to-reach spots, double-hung for everywhere else.
Are casement windows more energy-efficient than double-hung?
Generally yes. A casement window's sash presses tightly against the frame when closed, creating a better air seal than a sliding double-hung window. The difference is real but modest, and the glass package matters more than the style.
Can you put a window AC in a casement window?
Not a standard window unit — casements crank outward and don't have the vertical opening a window AC needs. If you rely on window air conditioners, choose double-hung (or a specialized casement AC unit, which is less common and pricier).
How much do casement vs. double-hung windows cost?
Double-hung windows run about $400–$900 installed, and casement windows about $500–$1,200. Casements cost a bit more due to their hardware and tighter construction.
Keep reading
Ready to get window replacement quotes?
Get matched with vetted, licensed local pros and compare free, no-obligation quotes.
100% free · No obligation · Licensed & vetted pros
Other projects worth pricing
Most homeowners bundle exterior work while the crew and access equipment are already on site — it usually costs less than booking each job separately. Quotes are free and carry no obligation.