Our Trade Services

Despite our extensive experience helping residential homeowners fulfil their property ambitions, we’ve managed to lend our services to reliable tradesmen and installers too. With over 30 years’ experience working collaboratively with traders, we’ve provided tremendous products and expert advice, helping them to complete projects on time and on budget. Our trade services offer a variety of durable and efficient products including a trade supply, trade supply windows and secure and robust doors for trade customers.

As trade supply windows and doors experts, we know how important it is for installers to use a product supplier that is reliable and dependable, helping them to get the best end result for installations. Wherever you’re based in the North West, we can offer you a trade supply service second to none. Our trade supply window and door services are fully accredited, with a Certass insurance backed guarantee, keeping your peace of mind that we are a trusted and responsible installer.

High-end trade supply windows and doors designed to meet the strictest project demands

In terms of trade supply products, we supply everything you will need for a hassle-free and smooth installation, all at a very competitive price for trade customers in Lancashire and the North West. From highly durable, sleek aluminium trade supply windows, to trade bifold doors that allow for an abundance of natural light, to contemporary, ultra-efficient composite doors, we supply trade products in any quantity on time, every time. So if you're looking for trade double glazing in Blackburn, Lancashire or the surrounding area, you can trust Great Harwood Window's trade supply service.

We offer an impartial consultancy service, and do not gravitate to any particular product or system – this results in a lot of flexibility to fit client requirements dependent upon budget and specification.

Full house installation with flush sash windows

A huge thank you to Scott and Damien for doing an amazing job installing my windows. They were prompt, attention to detail and cleaned up after themselves. Nothing was too much trouble. I have no hesitation in highly recommending the team at GHW – thank you. 😃

February 6, 2024

“We had an old set of wooden garage/workshop doors replaced with a set of aluminium framed bi-folding doors. Communication throughout was great and it was quick and easy to get a quote and then set a date for the work to be carried out. The installers were extremely friendly and professional, and we couldn’t be happier with the work they carried out.”

Mr Pilling

February 2, 2024

“It has been a brilliant experience and we will definitely be return customers when we are replacing all the remaining windows in our house refurbishment.”

Mr Pilling

January 10, 2024

“All of the installation team were great. A special mention goes to Chris who was there throughout and who’s skills, professionalism and courtesy was second to none.”

Mr Green

January 10, 2024

“Fantastic service including after sales from start to finish. Definitely recommend GHW to anyone plus , will use them again when we replace some windows”

Mr Inge - Oswaldtwistle

November 21, 2023

“Great service and great customer service from the fitters and good quality product.All round excellent experience”

Mrs Buck

November 21, 2023

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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.