Double Glazing Installers in Lancashire and across the North West

From our Blackburn base, Great Harwood Windows operate throughout the Lancashire area, Merseyside, Cheshire, Greater Manchester and West Yorkshire to lend our services to homeowners and installers alike. We’ve been serving towns, cities and villages in these counties for over 30 years, building an excellent reputation for reliable customer service, exceptional quality products and unrivalled installation expertise.


As we’re based in Lancashire, we spend the majority of our time serving the towns and villages in this region. The places we serve in Lancashire includes Preston, Accrington, Burnley, Blackpool, Chorley, Haslingden, Rufford, Ormskirk, Great Harwood and Blackburn.

VEKA full house casement window pvc great harwood
Deceuninck UPVC French Door

Greater Manchester

As the region of Greater Manchester is only a short distance away from Blackburn, we work throughout the region. The areas we serve here includes Rochdale, Bolton, Wigan, Leigh, Bury, Ashton-under-Lyne, Stockport, Warrington, Sale, Stretford & Salford.


Due to our proximity to West Yorkshire, our expert team has supplied numerous installers and homeowners across the region with a selection of our products. Taking us to historic towns like Keighley and Halifax, quaint villages such as Haworth, Greetland and Slaithwaite as well as the larger cities of Bradford and Huddersfield.

Front Door and Windows
Deceuninck uPVC Flush Sash Windows


Although Merseyside is a little bit further away for us, we still operate in towns such as Southport, St Helens, Crosby, Kirkby & Formby. We also serve plenty of villages in the area like Rainford, Haydock, Thornton & Lydiate.

black aluminium bifold doors

Why Choose Great Harwood Windows?

We're committed to providing Lancashire homeowners with the highest quality service. Here are just a few ways we excel beyond the standards of other glazing installers.

Highly experienced teams with over 30 years trading

We value customer satisfaction above all else

Free no obligation quotes with no pressure selling

Fantastic trade support with free skip use

Highly trained dedicated installation teams

Experienced fitters with many years working in the industry

Efficient installation - usually 4-8 weeks from survey

All products are designed for maximum efficiency and energy saving

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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.