Areas We Serve

Double glazing installers in East Lancashire and beyond

From our Blackburn base, Great Harwood Windows operate throughout the Lancashire area and even venture into Merseyside, 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.

Why choose Great Harwood Windows?

Over 30 years experience serving East Lancashire (30 mile radius)

Family run home improvement company for a more personable service

Supply services suitable for both trade & retail customers

Free no obligation quotes with prompt 24 hour turnaround

An extensive range of products engineered from a wide range of industry leading systems companies

Fully accredited, including VEKA & Certass approval with 10 year insurance backed guarantees

Dedicated product showroom which prominently displays an array of windows and doors

Towns, cities and villages served by our expert team


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.

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.


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.

Fully accredited for supply & installation

All our customers will be able to enjoy complete peace of mind when opting for a service from Great Harwood Windows, providing a 10 year written insurance backed guarantee through QANW (Quality Assured National warranties). This, combined with approved installer status from the VEKA group and Certass schemes, along with up to 5 year’s guarantee on all parts and double glazed units means your project will always be in safe hands.

Glass and Glazing Federation Approved Code The Glazing Arbitration Scheme QA National Warranties certass logo trustmark logo

Based in 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.

Trade Supply
liniar logo
veka logo
deceuninck logo
residence 9 logo
smart logo
quickslide logo
solidor logo
door-stop logo
rockdor logo
ultraframe logo
swish logo
made for trade logo