Aluminium Windows

ALU5 Windows

Our ALU5 windows, available for new build projects and renovations nationwide, are designed to adapt to the specifications of any contract. With a wide variety of designs, our double glazed windows can match the aesthetics of any building. A slim sightline of 85mm ensures that these windows do not compromise on appearance. With a visible frame and smooth opening sash, our ALU5 windows are easily adaptable to any home.


Thermal Insulation (in W/m2K):

Uw up to 1.35


Sound Reduction (in dB):




PAS 24

More Info

Our ALU5 windows are double glazed as standard. This ensures that these windows have U-values as low as 1.3Wm2k. With a strong focus on energy efficiency, our triple gasket system creates an airtight barrier. This will reduce cold draughts. Our double glazed aluminium windows are constructed with insulation to improve soundproofing. This can improve sleep cycles and increase overall quality of life. Contact us today for ALU5 window prices, or book an appointment at your nearest showroom.

Technical Specifications

Dimension (in mm) Opening Versions Gaskets
Frame construction depth 70
Quantity 3
View width frame/sash 88
Turn and turn/tilt
Colour Black
View width flying mullion (2 sashes)
View width transom/mullion (2 sashes)
Outward Opening Doors
Low Threshold

Features & Benefits

Personal Touches

We offer a variety of finishes for our ALU5 windows. You will be able to choose from a range of internal and external finishes to design your windows to perfectly match your project.

Durable Construction

Our ALU5 windows require minimal maintenance and have a long lifespan. This means that you can rest assured that your windows will stay looking as good as they do at installation.

Secure Design

Our ALU5 windows are completely compliant with the PAS 24 2016 security test. This means that our aluminium windows meet enhanced security performance requirements.

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Hardware & Glass Options

The Visiline ALU5 windows have a variety of hardware and glass options to customise your windows based on whether you want to improve the thermal efficiency, light emission, or sound reduction of your home.

Choosing the right glass options for your home is important. Our options include the LowE clear glass, which maximises the supply of natural light to improve light transmission in your home, and the Super LowE, which boasts low emissivity, reducing heat loss.

A premium option is the Planistar® Sun glass, an all-around pleaser with low emissivity and high energy efficiency. With this option, your windows reduce your home from overheating in the summer and increase thermal insulation in the winter.

Safety glass is an option worth considering too. A durable thick glass pane is created by glueing two panes of glass together with transparent resin, increasing safety by reducing the risk of accidents. If the glass breaks, it will not shatter.

To increase the privacy of your ecoHaus windows, a great solution is choosing ornamental glass. You can choose from satin glass or more textured glass, and tinted options are available too. These windows provide more privacy without compromising on light transmission.

Another way to customise your windows is with the handles. We have more sleek handles, like the minimalistic designs, and more secure ones, where you can add a key for added security. We also offer “invisible” handles which are embedded in the side of the frame, giving a minimalist look to the whole system.

All ecoHaus handles are available in silver, white, black, or anthracite grey. The Brest Secustik matte titanium handles are available in bronze, white, and black but are an exclusive option for a limited range of windows. Call us on 0800 612 6519 to see if your windows are one.

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ALU5 Window Prices

Request a quote via our online form to receive prices on these ALU5 windows. Take a minute to fill out your details and we will be in touch to offer project quotes and impartial advice. If you prefer, you can call 0800 612 6519 to talk to an ecoHaus expert today. They can provide more details on our products and processes. Want to see our products in person? Book an appointment today to visit one of our showrooms. Our handy Showroom Finder tool can find the closest one to you.

Extra Features


Our ALU5 windows are compatible with a wide array of hardware and additional furniture. From handles in a host of colour finishes, to the most secure locking systems, our Visiline windows are fitted with the very best. Take a look through our brochures and technical guides today to discover our full range of additional options.

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Case Studies

Our case studies can inspire you to begin your own project or can add fresh ideas for one that you have already started. Flick through images to see how our windows have been installed in properties being renovated, as well as new builds. You can see for yourself how our windows can modernise buildings, add a personal touch to any home and use high performing manufacturing to improve any entrance. Find out how we can adapt our products and processes to match the requirements of any project.

View All Case Studies
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Visit one of our showrooms to receive expert opinions, explore the hidden technology which drives our manufacturing and see our latest products. Positioned in Gloucestershire, as well as all across England, Wales and Scotland, our Showroom Finder tool can help you discover one near you. Learn more about how your own project would work in practice, with our product specialists available to guide you in your decisions. Get an in depth view of the techniques that make our products unbeatable.

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