
If you’ve ever wanted to keep a window open during a light shower without ending up with a wet windowsill, or a wet floor, then top hung windows might be the solution you’ve been looking for. Hinged at the top and opening outward from the bottom, top hung windows are designed for continuous ventilation, even when the weather is not entirely on your side. When you combine that simple design with the strength and versatility of aluminium frames, you get a window that easily earns its place in any home.
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What Are Top Hung Windows?
Top hung windows are hinged along the top edge of the frame and open outward at the bottom. This creates a natural canopy effect, much like an awning, and helps deflect rain away from the opening even when the window is open.
Why Top Hung Window Ventilation Is a Game-Changer

Good ventilation protects both your comfort and your home. Top hung windows make this easier and more reliable than many other window styles. The offer the following two key benefits:
1. Protect Your Home From Damp and Mould
Poor airflow leads to condensation, which can cause damp and mould in your home, especially in bathrooms and kitchens. Top hung window ventilation helps by:
- Letting moist air escape quickly after showers, baths, and cooking
- Reducing condensation on walls, ceilings, and window frames
- Supporting a healthier indoor environment with fewer damp-related issues
2. Keep Windows Open in Light Rain
Because top hung windows open from the bottom and hinge at the top, the glass acts like a small roof. This means you can:
- Leave windows open during light rain without worrying about water coming in
- Keep a steady flow of fresh air during the day, even when you are not at home
- Enjoy more reliable ventilation than with side hung casements or sash windows, which are more exposed once open
Why Choose Aluminium Top Hung Windows Over uPVC or Timber?

Not all top hung windows are the same. The frame material you choose affects performance, lifespan, and appearance. In the following comparison, aluminium top hung windows consistently come out on top.
Aluminium vs uPVC
When you put uPVC windows against aluminium, uPVC is widely available and often promoted on price, but it has limits that tend to show over time. The top four limitations are:
- uPVC can warp or discolour with long term UV exposure.
- Bulkier profiles are often needed to keep the frame rigid.
- Thicker frames can reduce the glazed area and the amount of natural light.
- The result is often a less elegant finish.
Aluminium is different:
- It is naturally rigid and strong.
- It allows for slimmer sightlines and a larger glazed area.
- It delivers a clean, modern look.
- It keeps its shape and colour better over time, without the yellowing or brittleness that uPVC can develop.
Aluminium vs Timber
Timber windows have real charm, and in the right setting they can be a beautiful choice. However, in high moisture spaces such as bathrooms and kitchens, timber needs careful and regular maintenance to avoid problems like swelling, warping, and rot.
A top hung window in a steamy bathroom that is often left open in damp conditions places extra demands on the frame material.
Aluminium is not affected by moisture. It will not swell, warp, or rot. It also does not need painting, sealing, or special treatment to stay in good condition. For a window chosen for its ventilation performance, aluminium is the more reliable long term choice.
Thermal Performance
There is a common belief that aluminium frames are thermally inefficient. Modern aluminium top hung windows are designed to address this. They usually include thermally broken profiles, which means there is a built-in barrier that slows heat transfer between the inside and outside sections of the frame.
When you combine these frames with double or triple glazing, you get strong thermal performance that meets, and often exceeds, current building regulation standards.
The Best Rooms for Top Hung Windows
While top hung windows work well throughout the home, there are three rooms where their benefits are most keenly felt:
- Bathrooms: Top hung windows let steam escape quickly after showers and baths, can stay open in light rain, and are usually placed high on the wall to help maintain privacy.
- Kitchens: In kitchens, they help remove heat, steam, and cooking smells while sitting comfortably above sinks or worktops without creating a strong draught.
- Bedrooms: In bedrooms, top hung windows allow gentle overnight ventilation for more comfortable sleep, improve security when installed higher up, and stay weather resistant in light rain while still letting in fresh air.
Key Things to Consider When Choosing Top Hung Windows
When choosing top hung windows for your home, keep these key design and performance factors in mind:
- Placement height: Higher installation can improve ventilation efficiency and security, and it can also protect privacy in bathrooms and bedrooms.
- Opening clearance: Because top hung windows open outward, make sure there is enough external clearance. Try not to place them directly above planters, pathways, or outdoor furniture.
- Frame colour: Consider how the powder coat finish will work with both the inside and outside of your home. Our team can advise on colour choices that suit your property.
- Glazing specification: Choose window glazing based on the room. For example, obscure glass for privacy or triple glazing for better noise reduction and thermal performance.
- Hardware finish: Do not overlook handles and other hardware. These small details can have a big impact on the overall look and feel of the window.
Upgrade Your Home With Aluminium Top Hung Windows
Top hung windows offer reliable, everyday ventilation, even in light rain. By placing them higher on the wall, you can improve airflow, support the stack effect, and protect privacy. When you choose aluminium top hung windows, you also gain slim sightlines, strong durability, low maintenance, and modern thermal performance, all tailored to rooms like bathrooms, kitchens, and bedrooms.
Explore our full range of aluminium top hung windows and request a quote today. Our team is ready to help you choose the right specification for your project.




