Aluminium Casement Windows
Superior ventilation through wide-angle opening
Strong sealing performance with full compression seals (Class A airtight/water tight)
Thermal break PA66 technology for energy efficiency
Modern architectural aesthetics with slim frame profiles
Shaanxi SGL Doors&Windows Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of aluminium casement windows in China, also supports customized service. Please feel free to wholesale high quality aluminium casement windows for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Description
What Are Aluminium Casement Windows?
Aluminium casement windows (also referred to as aluminum casement windows in the US market) are side-hinged windows that open outward or inward via a handle or crank mechanism. Unlike sliding or fixed windows, casement windows offer full-width ventilation - the entire sash opens, allowing maximum airflow into the space. Combined with compression seals, they provide exceptional airtightness and waterproofing, making them ideal for both residential and commercial buildings.
SGL's aluminium casement windows are manufactured from premium 6063-T5 aluminium alloy with profile thickness options from 1.4mm to 3.0mm. Each window features PA66 polyamide thermal break strips to minimize heat transfer, achieving improved energy efficiency compared to non-thermal break alternatives. For enhanced thermal performance in colder climates, consider our Thermal Break Aluminium Casement Windows with advanced PA66 insulation technology.
Why Choose SGL Aluminium Casement Windows?
Based in Shaanxi, China, SGL Doors & Windows Technology Co., Ltd. brings over a decade of aluminium window and door manufacturing expertise to every project. Our aluminium casement windows are trusted by architects, builders, and distributors across the UK, USA, Australia, Europe, Africa, Central Asia, and Southeast Asia. We combine factory-direct pricing with full customization - from frame thickness and glass configuration to color matching and hardware specifications.
Unlike generic template descriptions found on many Chinese manufacturer websites, every SGL casement window is built to your project's specific requirements. Whether you need 50 units for a residential development in London or 500 units for a hotel project in Dubai, we deliver consistent quality with CE and ISO 9001 certifications. Browse our full range of casement windows to compare styles and configurations.
Key Features
🪟 Superior Ventilation
- What it means: Full sash opening for maximum airflow - up to 90° opening angle.
- Why it matters: Naturally ventilates indoor spaces, reducing reliance on mechanical HVAC systems. Ideal for kitchens, living rooms, and commercial spaces.
- Tech specs: Inward or outward opening; multi-position locking for trickle ventilation mode.
🔇 Sound Insulation (35-45dB)
- What it means: Multi-chamber profiles + double/triple glazing reduce external noise penetration.
- Why it matters: Creates quieter indoor environments in urban areas, near airports, or along busy roads.
- Tech specs: Achieves 35-45 dB sound reduction depending on glass configuration; laminated glass option available for higher acoustic performance.
❄️ Thermal Break Technology
- What it means: PA66 polyamide strip separates interior and exterior aluminium profiles, stopping heat transfer.
- Why it matters: Reduces heating and cooling costs year-round; prevents condensation on interior frames. Meets U.S. Department of Energy window performance ratings for energy-efficient buildings.
- Tech specs: PA66 + 25% Glass Fiber thermal break; compatible with Low-E double/triple glazing.
🔒 Multi-Point Locking Security
- What it means: Multiple locking points engage along the frame when the handle is turned - not just a single latch.
- Why it matters: Provides superior security against forced entry; meets European safety standards for residential and commercial applications. Meets AAMA certification standards for aluminum windows.
- Tech specs: German/Italian multi-point lock; optional HOPO or GU hardware systems.
🎨 Fully Customizable Design
- What it means: Every aspect - size, color, glass, hardware - can be tailored to your project.
- Why it matters: Perfectly matches architectural drawings without compromising on performance. For maximum energy savings, explore our custom triple-glazed casement windows with Low-E coatings.
- Tech specs: All RAL colors; powder coating / anodizing / wood grain; any custom dimension; multiple glass types.
🏭 Durable & Low Maintenance
- What it means: Aluminium does not rust, warp, rot, or require painting - unlike timber or steel.
- Why it matters: 40+ year lifespan with minimal upkeep. Just occasional cleaning with soap and water. If you prefer a minimalist frame design, our ultra-slim aluminium windows offer a 35mm visible frame for maximum glass area.
- Tech specs: 6063-T5 alloy with corrosion-resistant surface treatment; 10-year powder coating warranty.
How to Choose the Right Aluminium Casement Windows
Follow these steps to select the ideal casement windows for your project:
- Confirm opening direction - inward or outward based on space and safety requirements. For an alternative opening mechanism, explore our Aluminium Tilt and Turn Windows.
- Select aluminium thickness - 1.4mm for standard residential, 2.0-3.0mm for commercial/large openings.
- Choose glass type - double glazing for standard projects, triple glazing or Low-E for enhanced energy performance.
- Match color & finish with interior/exterior design - powder coating offers the widest RAL color range.
- Check sound insulation level - 35dB for suburban areas, 45dB for urban/noisy environments.
- Ensure quality hardware - German/Italian multi-point locks for long-term smooth operation and security.
- Choose a reliable manufacturer - verify CE/ISO certifications, export experience, and factory capability.
Suitable For
- 🏠 Residential Houses
- 🏢 Apartments & Condominiums
- 🏡 Villas & Luxury Homes
- 🏫 Schools & Hospitals
- 🏬 Commercial Buildings
- 🏨 Hotels & Resorts
- 🔨 Renovation & Upgrading Projects
our aluminum window Application
our factory
Client Visit
Frequently Asked Questions About Aluminium Casement Windows
Q: Q1: What are aluminium casement windows?
A: Aluminium casement windows (also called aluminum casement windows in the US) are side-hinged windows that open outward or inward using a handle or crank. They are known for superior ventilation, excellent airtightness, and modern aesthetics. SGL's casement windows are made from 6063-T5 aluminium alloy with PA66 thermal break and multi-point locking for security.
Q: Q2: Are aluminium casement windows waterproof?
A: Yes, they provide excellent water tightness due to full-seal compression systems. SGL's aluminium casement windows meet Class A water tightness standards (EN 12208), making them suitable for windy and rainy climates across the UK, Europe, Southeast Asia, and other regions with high rainfall.
Q: Q3: Can I choose custom colors and finishes?
A: Absolutely. We offer powder coating, anodized finishes, and wood grain in any RAL color. Popular choices include Anthracite Grey (RAL 7016), Matte Black (RAL 9005), White (RAL 9016), Silver, and various wood grain finishes. Minimum order quantities apply for custom RAL colors.
Q: Q4: How energy-efficient are aluminium casement windows?
A: SGL's aluminium casement windows feature PA66 polyamide thermal break strips that significantly reduce heat transfer between interior and exterior. When paired with Low-E double or triple glazing and argon gas filling, they achieve excellent thermal performance - reducing heating and cooling costs by up to 30% compared to non-thermal break alternatives. Learn more about NFRC energy performance standards for window ratings.
Q: Q5: What is the difference between aluminium and uPVC casement windows?
A: Aluminium casement windows offer superior strength, a longer lifespan (40+ years vs 20-25 for uPVC), thinner frame profiles for more glass area, and full recyclability. While uPVC may have a lower initial cost, aluminium provides better long-term value - especially for larger openings, commercial projects, and buildings requiring slim frame aesthetics. Aluminium also offers a wider range of color and finish options.
Q: Q6: What are your MOQ and lead times for aluminium casement windows?
A: We offer flexible MOQ - trial orders starting from 10-20 units are welcome. Standard lead time is 15-25 working days depending on order volume and customization complexity. For bulk orders (500+ units), we can negotiate reduced lead times. We ship worldwide via sea freight (FOB/CIF), air freight, or express (DDP available for selected markets). Contact us for a customized timeline based on your project schedule.
Project Case Studies
We provide one-stop door and window solutions for individual buyers, contractors, renovation companies, and more.
Our address
No. 2 Group, Fumiao Village, Laojun Town, Hantai District, Hanzhong City, Shaanxi Province, China
Phone Number
+86 13335450021
sgl-factory@sgl-doors-windows.com
Hot Tags: aluminium casement windows, China aluminium casement windows manufacturers, suppliers, factory, aluminium vertical sliding windows, aluminum glass window, aluminium sliding sash windows, aluminium flush windows, glass and aluminium windows, best aluminium sliding windows
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Aluminium Casement Windows |
| Material | Aluminium Alloy 6063-T5 |
| Opening Type | Inward / Outward |
| Frame Thickness | 1.4mm / 1.6mm / 2.0mm / 3.0mm |
| Glass Options | Double / Triple Glazing, Low-E, Laminated, Argon-filled |
| Hardware | German / Italian multi-point locking system |
| Surface Treatment | Powder Coating / Anodizing / Wood Grain |
| Thermal Break | PA66 Polyamide + 25% Glass Fiber |
| Air Tightness | Class A (EN 12207) |
| Water Tightness | Class A (EN 12208) |
| Sound Insulation | 35 – 45 dB |
| Maximum Size | Fully Customizable |
| Insect Screen | Available (integrated option) |
| Certifications | CE, ISO 9001 |
| Color Options | All RAL colors, Anodized Silver, Wood Grain - customizable |
You Might Also Like
Send Inquiry