Comparisons
Double-hung vs. casement windows
Two of the most popular window styles on Long Island, compared on ventilation, efficiency, cleaning and looks.
Quick answer
Double-hung windows offer classic looks and top-and-bottom ventilation, and both sashes tilt in for easy cleaning. Casement windows crank open and seal tighter against the frame, making them slightly more energy-efficient and ideal over sinks and counters. Both suit Long Island homes well.
How they differ
The core difference is how they open: double-hungs slide vertically, casements swing out on a crank.
Choose double-hung if...
You want a traditional look that suits Long Island Capes and Colonials, top-and-bottom airflow, and tilt-in sashes for easy second-floor cleaning from inside.
Choose casement if...
You want the tightest air seal and maximum unobstructed view, or you need easy one-hand operation over a kitchen sink or counter.
| Factor | Double-hung | Casement |
|---|---|---|
| Ventilation | Top & bottom | Full opening |
| Air seal | Very good | Best (compression seal) |
| Cleaning | Tilt-in sashes | Reach exterior when open |
| Best for | Traditional homes | Over sinks, tight seals |
Many homes mix both styles by room, we help you plan it.
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Frequently asked
Are casement windows more efficient than double-hung?
Slightly, the sash seals against the frame with a compression fit, reducing air leakage, though glass package and install matter most.
Which is easier to clean?
Double-hungs tilt in for easy interior cleaning; casements let you reach the exterior glass when cranked open.