High Performance Windows in Both Aluminium and UPVC

Great Harwood Window’s range of aluminium and UPVC windows can be promptly supplied to suit a wide variety of property applications, whether for a client’s project or your own. Actively working with market leading fabricators such as Veka and Residence 9, in any required style our suite of windows excel in delivering excellent efficiency, security, and style.

Cream Casement Windows


The UK’s most popular choice of window style, casement windows have remained a simple yet effective aperture solution in many homes for centuries. Modern variants combine flexible performance with bold design, to add value to any type of property.

Casement Windows

Eurocell uPVC Vertical Slider Cream

Vertical Sliders

Immediately capable of ventilating a room, our range of vertical sliders make use of a sash that slides effortlessly upwards to help all feel closer to the outside. Regardless of shape or size, vertical sliders add heritage charm while remaining highly efficient.

Vertical Sliders

Deceuninck UPVC Flush Sash Window Close Up

Flush Sash

Making the most of clean and sleek profile sightlines within a sash that sits completely flush in the frame, flush sash windows evoke a classic style but excel at providing modern efficiency, security, and heat retention.

Flush Sash Windows

Tilt and turn windows interior

Tilt & Turn

Providing users with the ability to enjoy great flexibility, tilt & turn windows do exactly what they say on the tin, turning outwards in the conventional manner, as well as tilting inwards for better safety. Ideal for those living in high-rise builds, tilt & turn windows are very innovative.

Tilt & Turn Windows

Veka UPVC Georgian Bay Window

Bay & Bow

The optimal choice for those hoping to let the light shine in from multiple angles as well as subtly extend the home, bay & bow windows provide the same benefits as casements with added elegance and charm.

Bay & Bow Windows

Residence 9 Green

Residence 9

Successfully recreating the traditional aesthetics of 19th century timber but without any of the high maintenance drawbacks, Residence 9 windows make use of 9 internal chambers for enhance efficiency alongside an entirely flush sash for the perfect finishing touch.

Residence Collection

What's the difference?

Double vs Triple Glazed Windows

A double glazed window has two panes of glass separated by a vacuum containing either air or an odourless gas. This heat-trapping chamber slows the rate of thermal transfusion, preventing heat from infiltrating in Summer and escaping in Winter. Triple glazed windows, with their extra pane of glass and extra chamber, greatly enhance this effect.

As well as fantastic levels of thermal performance, both double and triple glazing can also achieve higher standards of noise insulation and UV ray resistance.

triple glazing
White aluminium casement windows
Which should I choose?

Aluminium or UPVC windows?

UPVC is Lancashire's most popular window material. It's beloved for its versatility and compatibility with a range of colours and woodgrain effects.

Aluminium, meanwhile, exhibits exceptional strength. Aluminium windows, therefore, can support very large panes of glass with only the thinnest of frames. It's this that gives aluminium windows their sleek, minimalist and modern appearance.

Both materials also only require minimal maintenance, with only the occasional wipe down with soapy water required.

Full house installation with flush sash windows

Very friendly, efficient, polite installers.

Mr Allen - Blackburn

March 15, 2022

Fitters arrived on time, were polite and extremely hard working. When they had completed the installation there was absolutely no evidence that they had worked in our property. The job was very neatly done and so far we are very pleased – thank you.

Mrs Myers - Blackburn

March 15, 2022

“Please may I take this opportunity to pass on my thanks to the whole team for such an excellent job. Every single person I’ve dealt with has been very friendly and professional especially the two fitters. Customer service was absolutely fantastic.”

Mrs Newman - Blackburn

March 9, 2022

“The guys were fantastic, really helpful and friendly. Explained everything and have done an amazing tidy job of both windows, really happy”

Mrs Farnworth - Clitheroe

February 23, 2022

“The lads were brilliant, well mannered, polite and hard working”

Mrs Sultana - Blackburn

January 31, 2022

“Excellent job, tidied up afterwards, really approachable guys!”

Mrs Ellison - Accrington

December 17, 2021

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Based in the heart of Lancashire

Situated in the very heart of Blackburn, we are readily capable of providing the people of East Lancashire and surrounding areas with a range of UPVC, composite and aluminium products. Whether for personal or trade purposes, realising your aspirations are only one step away with Great Harwood Windows team.