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.

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

“We would just like to pass on our thanks and gratitude for an excellent standard of service and  professional workmanship received from you when replacing our conservatory roof this January . They all work incredible hard and completed the task ahead of schedule . Your workforce from planning, installment etc. are a credit to your company and we also prefer to support local businesses.”

Mrs Towne - Blackburn

January 31, 2025

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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.