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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.

Lancashire

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.

Yorkshire

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

Merseyside

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.

Installations across the North West

At Great Harwood Windows, we have successfully completed a wide range of glazing installations across North West England. Click on the links below to find out more about our work across the area.

Aluminium glazing for Ribble Valley new build property

Aluminium bifold doors for Blackburn DIY SOS project

Commercial aluminium project in Rawtenstall

Patio with large patio doors
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 good communication and very professional company. High standard fitting of front door. We had a couple of little issues but they
responded and resolved them promptly and efficiently.

Kirsty Imie

August 28, 2025

Fantastic customer service. Very helpful in advice on the various products offered, how the cost would be affected. We were kept informed
throughout process even down to a reminder a few days prior to installation. The installation process was clean and efficient.

Mr Rifai.

August 28, 2025

Excellent communication throughout both in person and electronically. Lovely team fitting and install. Very happy with the finished product

Gary Lane

August 28, 2025

“I found GWH Windows an excellent company to deal with. The staff were very friendly and easy to deal with. The installation staff were very experienced and did and excellent job. I would recommend them to anyone.”

Mr Nuttall - Burnley

July 31, 2025

“Very efficient from start to finish, great company, I would highly recommend them to anyone wanting replacement doors and windows etc. I will be using GH Windows again for a roof lantern”

Mr Inge - Accrington

July 31, 2025

“We replaced our old wooden porch and door through Great Harwood windows. The whole experience was extremely good. Couldn’t fault the fitters Scott and Sam who were very professional and paid a lot of care to detail. Very tidy. Reasonable price.”

Mrs Wroe - Clitheroe

July 7, 2025

map marker for great harwood windows
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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.