Aluminium Windows Marlow

Aluminium Windows Henley

Aluminium Windows for New Build Developments

Bespoke Products

Every installation we undertake is made to measure, giving you a completely bespoke product for your Henley new build properties. Whatever the needs of your project are, we have aluminium windows that will be crafted to suit its needs flawlessly.

Full Design Service

If you need full CAD drawings for your project, we can supply them. And for full scale aluminium window and door fittings, we’ll also provide a comprehensive visualisation of how the finished Henley project may look.

Expert Installation

Our area of expertise is aluminium window and door installations into new build developments. We have years of expertise and experience working in this field, so you can be assured that your Henley new build project will be in the very safest hands with OpenSquare.

Aluminium Window Cost Marlow

Aluminium Window Prices, Henley

Visit our online quoting engine for a free, no-obligation quote for aluminium windows for your new build project in Henley.

Aluminium Window Prices Marlow

Smart Heritage Aluminium Windows

We partner with Smart to offer their Heritage aluminium window range. These windows are market leaders in both design and performance and come in both casement and tilt and turn profiles, so they can fit in with any Henley development’s needs.

Both styles offer slim sightlines to maximise views and a framework that allows for double or even triple glazing. Double glazing is well known for increasing the energy efficiency of a property, and triple glazing allows you to take the energy efficiency even further. In fact, with triple glazing, our range of Smart Heritage aluminium windows can attain U-values as low as 1.0W/m2K, which is truly exceptional!

This range of aluminium windows provide a truly green solution for any Henley build, and are available in a wide range of colours. On top of this, they’re highly secure and can be tested to meet PAS24 security standards. Both the casement and fixed casement profiles come with advanced multi point locking systems, and being made of aluminium they’re incredibly strong and durable.

Aluminium Window Quote Marlow

Aluk Slimline Windows

We also offer AluK slimline casement aluminium windows to provide an even wider range of high performance, versatile options for our Henley customers. These stylish casement windows deliver a fantastic blend of aesthetic appeal and technical performance, making them a perfect addition to any Henley home.

With a Window Energy Rating (WER) of B, and the ability to reach a U-value as low as 1.2W/m2K with the right glazing units, they offer fantastic thermal efficiency to any home. These aluminium windows will also keep the cold and the rain out, as they are fully weatherproofed.

Our range of AluK windows are one of the most secure and durable designs on the market, as they come with both PAS24 certification, and are Secured by Design compliant. We’re proud to be able to offer such a robust and safe profile to our Henley customers.

Technical Specifications



U-Value (W/m²K) (Double glazing)

Up to 1.4

U-Value (W/m²K) (Triple glazing)

Up to 1.0


KM 81543 & KM 81580 available


PAS 24 & Secured by Design available

Start Your Aluminium Windows Quote Today

Visit our online quoting engine for a free and personalised quote on any of our aluminium windows.

Alternatively, get in touch with our friendly, expert team now to discuss your Henley new build development project in more detail.


We’ve put together a selection of the questions we get asked most frequently here. But if you still need answers, don’t hesitate to get in touch with the team directly!

What is the Process of Working with OpenSquare Glazing?

Once you’ve got your first quote, we’ll get in touch with you to discuss your project in greater detail. Once we’ve got a full understanding of what you need for your Henley new build development, we’ll design and then move on to produce, supply and finally install the windows, working alongside you at every stage.

Are Aluminium Windows Environmentally Friendly?

Aluminium is one of the most environmentally friendly construction materials out there. It’s very strong but also very lightweight, making it easier to transport, and it’s infinitely recyclable. On top of that, all the windows we offer are highly thermally efficient, which can serve to reduce the carbon footprint of any build.

Do OpenSquare Complete Replacement Work?

We specialise in supplying and installing our windows, doors and other products in new build properties. However, our sister company offers both replacement work and uPVC systems.

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