Vertical sliding sash uPVC & aluminium windows

Making the most of a window style initially popularised during the Victorian period but with a slew of modern advantages, vertical sliders from Great Harwood Windows can be supplied to deliver market leading performance and looks in either uPVC or aluminium. A simple slide of the window’s sash ensures any property can enjoy lashings of air and light, making the style highly advantageous for all.

Vertical slider features

  • Double or triple glazed vertical sliding sash windows for homeowners & trade customers
  • Traditional design with modern performance and smooth sliding sash
  • Complete suite of style options and sizes to tie in with any home
  • Configurable astragal bars allow for flexible degrees of authenticity
  • Achieves U-values as low as 1.4 W/m2K for better energy efficiency
  • Generous number of RAL colour options and tones to create a specific aesthetic
  • 10 Year insurance backed guarantee

uPVC and aluminium vertical sliding window options

We are well equipped to supply and install any vertical sliders using either Spectus or Renaissance profile systems. This not only ensures that we’ll be able to cater for projects of most budgets and tastes, but means we can offer you the maximum amount of creative flexibility possible with a vertical slider. Chamfered or sculptured, standard or triple glazed, nothing is off limits.

Depending on the style of property you’re planning on enhancing, each of our vertical sliders can be coloured to any one of over a hundred distinct shades and tones. From eye-grabbing Reds, subtle yet elegant Creams, to traditional woodgrain foils that succeed in replicating the classic aesthetics of times past, our vertical sliders are supplied tailor made.

Browse Brochures

Browse Popular Colours

Below you will find a range of our most popular colours and woodgrain foils. If you would like to view the full range of colours and foils and to also find out more about what Great Harwood Windows can do for you then contact us today.

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Colour White


Colour Cream


Colour Agate Grey

Agate Grey

Colour Hazy Grey

Hazy Grey

Colour Chartwell Green

Chartwell Green

Colour Brilliant Blue

Brilliant Blue

Colour Dark Red

Dark Red

Colour Natural Oak

Natural Oak

Colour English Oak

English Oak

Colour Light Oak

Light Oak

Colour Rustic Oak

Rustic Oak

Colour Walnut


Colour Steel Blue

Steel Blue

Get your quote

If you have a specific product in mind for your home improvement project, feel free to get a quick quote or make an enquiry. A member of our team will get back to you promptly.

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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

Why buy from Great Harwood Windows?

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

Quick installation - usually 2-4 weeks from survey

All products are designed for maximum efficiency and energy saving

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
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veka logo
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rockdor logo
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