What Are Single-Hung Windows?
Single-hung windows feature two sashes stacked vertically, but only the bottom sash moves—sliding up to open and down to close. The top sash remains fixed in place. This traditional design has been used in homes for centuries and remains popular today for its simplicity and reliability.
Single-Hung vs. Double-Hung Windows
The key difference is operability: single-hung windows have one moving sash, while double-hung windows allow both sashes to move. This affects ventilation, cleaning ease, and price.
| Feature | Single-Hung | Double-Hung |
|---|---|---|
| Moving sashes | Bottom only | Both top and bottom |
| Price | 10-20% less | Higher |
| Ventilation | Good (bottom only) | Better (top and bottom) |
| Exterior cleaning | Harder (no tilt-in) | Easier (tilt-in sashes) |
| Fewer moving parts | Yes—more reliable | More components |
Benefits of Single-Hung Windows
- Lower cost: 10-20% less than comparable double-hung windows
- Simpler mechanism: Fewer moving parts mean less that can break
- Better air seal: Fixed top sash creates a tighter seal
- Classic appearance: Traditional look suits many architectural styles
- Energy efficient: Modern single-hung windows meet ENERGY STAR standards
- Easy operation: Simple slide-up mechanism
Best Applications for Single-Hung Windows
Single-hung windows are ideal for:
- Bedrooms (adequate ventilation, good security)
- Living rooms and family rooms
- First-floor windows (exterior cleaning accessible)
- Traditional and colonial-style homes
- Budget-conscious renovation projects
- Rental properties (durable, low maintenance)
Energy Efficiency Options
Our single-hung windows are available with Ottawa-climate features:
- Double or triple pane glass: Enhanced insulation for harsh winters
- Low-E coatings: Reflect heat to reduce energy costs
- Argon gas fill: Better insulation than air
- Warm-edge spacers: Reduce condensation and heat transfer
- ENERGY STAR certified: Meet or exceed Canadian standards
Materials Available
Vinyl
Most popular choice. Low maintenance, excellent insulation, affordable.
Fiberglass
Premium durability. Paintable, strong, excellent thermal performance.
Wood
Classic beauty. Natural insulator, traditional appearance, paintable.
Aluminum
Sleek and modern. Durable, slim profiles, commercial applications.
Single-Hung Window Repair
Already have single-hung windows that need attention? We offer comprehensive repair services: