Windows
Double-Hung vs. Casement Windows: Which Should You Choose?
Most replacement window projects come down to two styles: double-hung, where two sashes slide up and down, and casement, which swings out on a hinge. Both make good replacement windows. The right one depends on the style of the house, the room, and how you use the window.
Key points
- Double-hung windows are the traditional New England look and suit colonials, capes, and historic homes.
- Casements open on a hinge, catch the breeze, and seal tightly against the frame when closed.
- Casements work well over sinks and counters; double-hungs are easy to fit with screens and window units.
- Many homes use both: double-hungs on the front, casements where reach or airflow matters.
Double-hung windows
Double-hungs are the classic look on New England homes, and on many historic houses they are the expected style. Both sashes move and usually tilt in for cleaning. They take screens and air conditioners easily. Their weak spot is the sliding seal between the sashes, which lets in more air than a casement as the window ages.
Casement windows
Casements open fully with a crank, so they catch a side breeze and are easy to open over a sink or counter. When they close, the sash presses against the frame, which makes a tight seal against wind and rain. They look more modern on some houses, though divided-light grilles can make them fit a traditional home.
| Double-hung | Casement | |
|---|---|---|
| Look | Traditional | Traditional or modern |
| Airflow | Half the opening | Full opening, catches breezes |
| Seal when closed | Sliding seal | Compression seal, tighter |
| Hard-to-reach spots | Harder to open | Easy with a crank |
Choosing room by room
Keep the style consistent on the street side of the house, and choose by function elsewhere: casements over the kitchen sink and in spots you cannot reach, double-hungs where you want a traditional look or a window unit. In a historic district, check what the commission expects before you order.
Frequently asked questions
Which is more energy efficient?
Casements usually seal tighter when closed because the sash presses against the frame. A well-made double-hung with good weatherstripping also performs well.
Can I switch from double-hung to casement?
Yes, in most openings, though it changes the look of the house. In historic districts it may need approval.
What is a garden window?
A small box window that projects out from the wall, usually over a kitchen sink, with shelves for plants.
Planning to replace your windows?
Cedar House Carpentry handles window replacement across Cape Cod and the South Shore with our own in-house crew, fully licensed and insured.
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