windowsWhy choose aluminium?

Aluminium has become a popular choice for homeowners due to its ability to create a distinctive style and longevity.
Unlike other materials such as wood which needs extensive maintenance and is prone to swell and rot over time, aluminium’s robust properties mean that it will remain unaffected by nature’s elements. Aluminium is durable and will not bend, get discoloured or rot. Aluminium windows require very little maintenance and will withstand the pressure of adverse weather.

Flexible frames

Aluminium’s flexibility means that frames can be constructed in almost any shape and size. Aluminium is a strong, yet lightweight material making it the ideal choice to use for a unique window design. Aluminium’s design capabilities mean that you could update your property or increase the light coming into your home with large windows.
A colour and finish to suit you.


Aluminium windows are available in a wide range of styles and colours, meaning that you have the option to really add style and character to your property. At National Window Systems we can produce our aluminium windows in a near limitless selection of RAL colours, meaning that you will never have to opt for a standard run of the mill colour. Our aluminium windows also come in a choice of finishes and with added glazing options available.
Energy efficient and environmentally friendly .


windowsAluminium is a lightweight and flexible material that enables manufacturers to produce window frames that are highly resistant to water and wind with exceptional U-values.


Come and have a look for yourself.

We have a selection of aluminium products on display at our showroom based in Darlington.


Combining reliability and security, our ALUK three pane bi-folding door in dual colour (anthracite grey on white) are aesthetically attractive and creates a modern living space. Our SAPA three pane rebated bi-folding door in dual colour (black on white) will ensure your property is finished to the highest standards. The contemporary window design will truly enhance your property.

At our Allington Way showroom you will find windows and doors intended for residential use. For more information on our aluminium windows click here or call 01325 381630.