A Practical Guide to Top Hung, Side Hung, and Tilt & Turn Aluminium Windows

In South Africa, homes must do more than look stylish—they must breathe, endure the elements, and provide lasting comfort through changing seasons. Aluminium windows meet these demands with their durability, clean lines, and resistance to rust, making them a popular choice for everything from coastal retreats to high-performance modern builds.

But when it comes to choosing the right window style, function matters just as much as form. Here’s a practical guide to the three most popular aluminium window types offered by Fenster, and why homeowners, architects, and developers across South Africa rely on them. Discover more with Fenster Aluminium.

1. Top Hung Aluminium Windows

What Are They?

Top hung windows are attached at the top and open outward from the bottom using friction stays.

Ideal For:

Bathrooms and guest toilets
High wall installations (e.g., stairwells, above doors)
Coastal or rainy regions where airflow is needed without water intrusion

Why Choose Them:

Allow safe ventilation even in light rain
Great for maintaining privacy and airflow in tight spaces
Clean, minimalist look with slim aluminium frames

Note: Fenster offers custom sizes up to 2000mm x 1500mm, ideal for maximizing natural light and ventilation without compromising security.

2. Tilt & Turn Aluminium Windows

What Are They?

These windows offer dual functionality: they can tilt inward at the top for ventilation or swing inwards from the side for a full opening.

Best For:

Double-storey homes
Apartments and townhouses
Schools and nurseries (for child-safe ventilation)

Why They’re Popular:

Two opening modes = ultimate flexibility
Easy to clean from the inside—especially on upper floors
Sleek, European-inspired aesthetic
Enhanced security due to internal opening and locking points

Keep in Mind:
The advanced hardware means a higher initial investment and requires precision installation for optimal performance.

3. Side Hung Aluminium Windows (Casement Windows)

What Are They?

Hinged on one side and opening inward or outward like a door, side hung windows offer classic functionality with modern appeal.

Ideal For:

Kitchens, bedrooms, and studies
Areas where you want controlled or direct ventilation
Homes with space for outward-opening windows

Why They Work So Well:

Excellent weather seal = better energy efficiency
Full-height opening for maximum airflow
Sleek, unobstructed views through single-glass panels

Note: These windows should be kept closed during rainfall, as they do not offer weather-protected ventilation like top hung styles.

Why Fenster Aluminium Windows Stand Out

Fenster windows are designed specifically for South African climates—from the dry Highveld to the humid coastlines of KwaZulu-Natal. Quality is built into every window:

German-engineered systems ensure long-term performance
Corrosion-tested hardware ideal for coastal regions
EPDM and silicone seals for optimal thermal and sound insulation
Tailor-made designs for different climate zones and architectural styles

From friction stays to high-performance locking systems, every detail is designed for durability, security, and visual impact.

Matching the Right Window to the Right Space

Window Type	Ideal Spaces	Key Benefits
Top Hung	Bathrooms, stairwells, above doors	Rainproof ventilation, great airflow
Tilt & Turn	Apartments, multi-storey homes, schools	Dual-function opening, easy to clean
Side Hung	Kitchens, bedrooms, living areas	Strong seals, wide airflow, elegant design

Final Thoughts

Choosing the right aluminium window style can elevate a project from functional to exceptional. Aluminium offers a timeless aesthetic, superior strength, and minimal upkeep—but it’s the right configuration that delivers long-term comfort and efficiency.

Fenster is here to help you find the perfect match for your architectural vision and lifestyle. From product selection and energy compliance to professional installation, our team is ready to assist.