Double-Hung Window Series
Double-hung windows embody classic American charm while offering everyday practicality, providing excellent ventilation and easy cleaning.
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Why Double-Hung Windows

At night, slightly lift the upper sash to let warmth gently escape. In the morning, gently raise the lower sash to draw in fresh air and soft light. The sliding sash design seamlessly integrates with curtains and furniture.
They imbue the building facade with a familiar, homely character. Thoughtful details like tilt-and-clean sashes quietly make daily life easier.
Technical Specifications
- Water Penetration: ≥700 Pa - Grade 6
- Air Tightness: ≥0.3 m³/(m·h) - Grade 8
- Acoustic Performance: ≥35 dB - Grade 4
- Thermal Insulation: ≥2.0 W/(m²·K) - Grade 6
- Wind Load Resistance: ≥5 kPa - Grade 9
Features
- U-value as low as 0.32, delivering outstanding energy-saving and thermal insulation performance
- High-end residential properties, commercial complexes
- Triple-pane glass with two air chambers + warm edge spacer + double silver low-E coating + argon gas
Double-Hung Window Types

Wood Double-Hung Window
We offer customizable window frame designs, wood grain finishes, and detailed craftsmanship to seamlessly complement classic architectural styles.

Aluminum Double-Hung Window
Robust and durable with sleek lines, featuring a rigid frame, expansive glazing, and low-maintenance coating.

Aluminum Clad Wood Double-Hung Window
The interior features natural solid wood, while the exterior is constructed from a sturdy aluminum shell.
Residential Cases

Front Elevation / Street Side
Serves as the primary visual focus for the entire façade.

Bedrooms
Top and bottom ventilation, convenient for leaving a crack open at night.

Dining & Living
Combined with large fixed windows, a portion can be opened as double-hung windows.

Staircase Windows
Use double-hung upper sashes for ventilation in high windows.
Functional Classification
Soundproof
Multi-layer glass structure, the interlayer is filled with soundproof material to enhance the sound isolation ability. Aluminum alloy window frames have high sealing performance, and with high-quality sealing strips can further reduce noise penetration.
Heat-insulating
Designed with aluminum profiles with heat insulation function and built-in heat-insulating strips, the window prevents indoor and outdoor heat exchange by optimizing the thermal isolation performance of the aluminum alloy frame, which is suitable for various climatic conditions.
Fireproof
Comply with strict fire codes and standards, designed to block the spread of flames, smoke and toxic gases, to ensure the safety of indoor personnel, offices, shopping malls and other commercial buildings will mostly use these windows.
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Double-Hung Window FAQs
Why do so many American homes use double-hung windows?
Because they complement classic American architectural styles—whether colonial, farmhouse, brick homes, or numerous luxury residences. Additionally, they offer excellent ventilation, save interior space, and many models tilt inward for easy cleaning, making them highly practical.
How do double-hung windows provide ventilation?
You can open the lower sash to let in fresh air, or open the upper sash to let out warm air. Slightly opening both the upper and lower sashes simultaneously creates natural airflow, making the room feel fresher.
Are double-hung windows energy efficient?
Provided they use high-quality weatherstripping, balances, and insulated low-emissivity glass.
Are double-hung windows suitable for bedrooms?
Yes, they are very common in bedrooms because they complement traditional architectural styles and allow for controlled ventilation. As long as one of the sashes meets local emergency escape requirements, they can be used as the main bedroom window.
Do double-hung windows leak air or are they noisy?
Older or low-quality windows may be noisy, but modern double-hung windows, when equipped with proper weatherstripping, high-quality balances, and insulated glass, can be quiet and comfortable. The key is good manufacturing, professional installation, and choosing a performance rating suitable for your local climate.
What materials are available for double-hung windows?
Common materials include vinyl, wood, aluminum, fiberglass, and aluminum-clad wood. Each material offers different advantages in terms of appearance, insulation, strength, and maintenance.
Can double-hung windows be used in coastal or harsh climate areas?
Yes, but the right type of window must be chosen. This may mean stronger frames, better hardware, impact-resistant glass, and high-quality finishes, especially for coastal or high-wind areas, such as those prone to hurricanes or storms.
Are double-hung windows easy to maintain?
Generally, yes. Routine maintenance typically involves cleaning the glass, occasionally wiping down the tracks and weatherstripping, and checking the locks and balances. Tilt-in double-hung windows make cleaning the exterior glass much easier, especially in high-rise buildings.
Can double-hung windows be customized to match my home's style?
Absolutely. We can customize the size, color, grille patterns, glass options, and interior finishes to match your existing windows or the style you require for your new construction or renovation project.
What are some common double-hung window sizes in American homes?
Typical residential double-hung windows range in width from approximately 24 inches to 48 inches and in height from approximately 36 inches to 72 inches, with common combinations including 30 inches x 54 inches, 32 inches x 60 inches, or 36 inches x 72 inches. For luxury homes, we can go beyond standard sizes to design larger, more elegant styles.
How do I know if double-hung windows are right for my project?
If you want a classic American style, flexible ventilation, and windows that pair perfectly with interior blinds, curtains, and trim, then double-hung windows are often a great choice. Share your floor plans, photos, or inspiration images, and we’ll tell you whether double-hung windows, or a combination of double-hung and other window types, would be best suited for your home.
Contact us
We will email you within one business day. If your project is urgent, please feel free to call +86 133 0284 5321 directly.


















