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.

Patio with large patio doors

A Trusted and Reliable Home Improvement Company

Established in 1990 by our Managing Director Jimmy Hindle, Great Harwood Windows was originally located in Great Harwood itself before increasing our ambitions and workforce to eventually relocate to Blackburn.

Since then, we’ve built up a reputation as being one of East Lancashire's most trusted and reliable home improvement companies amongst both installers and homeowners.

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UPVC And Aluminium Vertical Sliding Window Options

We are well equipped to supply and install any vertical sliders using the Spectus 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.

Spectus Vertical Slider Close Up
Veka uPVC Vertical Sliders
Design your own Vertical Sliding Windows

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  • Brochures
  • Popular Colours

    Aluminium & UPVC Vertical Sliding Window Colour Options

    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.

    Spectus White

    Spectus White

    Spectus Walnut

    Spectus Walnut

    Spectus Steel Blue

    Spectus Steel Blue

    Spectus Rustic Oak

    Spectus Rustic Oak

    Spectus Dark Red

    Spectus Dark Red

    Spectus Cream

    Spectus Cream

    Spectus Chartwell Green

    Spectus Chartwell Green

    Spectus Brilliant Blue

    Spectus Brilliant Blue

    Spectus Agate Grey

    Spectus Agate Grey

    Veka White 9003

    Veka White 9003

    Veka White Woodgrain 9010

    Veka White Woodgrain 9010

    Veka Cream 9001

    Veka Cream 9001

    Veka Agate Grey 7083

    Veka Agate Grey 7083

    Veka Pebble Grey 7032

    Veka Pebble Grey 7032

    Veka Basalt Grey 7012

    Veka Basalt Grey 7012

    Veka Silver Grey 7001

    Veka Silver Grey 7001

    Veka Slate Grey 7015

    Veka Slate Grey 7015

    Veka Irish Oak 1011

    Veka Irish Oak 1011

    Veka Golden Oak 8001

    Veka Golden Oak 8001

    Veka Rosewood 8017

    Veka Rosewood 8017

    Veka Chartwell Green

    Veka Chartwell Green

    Veka Anthracite Grey Spectral 7016

    Veka Anthracite Grey Spectral 7016

    Veka Anthracite Grey Smooth 7016

    Veka Anthracite Grey Smooth 7016

    Veka Anthracite Grey 7016

    Veka Anthracite Grey 7016

    Veka Black 8022

    Veka Black 8022

    Smooth White - Smooth White

    Smooth White - Smooth White

    White Grain - White Grain

    White Grain - White Grain

    White Grain - Smooth White

    White Grain - Smooth White

    Cream Grain - Cream Grain

    Cream Grain - Cream Grain

    Cream Grain - Smooth White

    Cream Grain - Smooth White

    Grey Grain - Grey Grain

    Grey Grain - Grey Grain

    Grey Grain - White Grain

    Grey Grain - White Grain

    Grey Grain - Smooth White

    Grey Grain - Smooth White

    Agate Grey Grain - Agate Grey Grain

    Agate Grey Grain - Agate Grey Grain

    Agate Grey Grain - White Grain

    Agate Grey Grain - White Grain

    Agate Grey Grain - Smooth White

    Agate Grey Grain - Smooth White

    Chartewell Green Grain - Chartwell Green Grain

    Chartewell Green Grain - Chartwell Green Grain

    Chartwell Green Grain - Smooth White

    Chartwell Green Grain - Smooth White

    Black Ash Grain - Black Ash Grain

    Black Ash Grain - Black Ash Grain

    Irish Oak Grain - Smooth White

    Irish Oak Grain - Smooth White

    Golden Oak Grain - Smooth White

    Golden Oak Grain - Smooth White

    Rosewood Grain - Smooth White

    Rosewood Grain - Smooth White

    Brochures

    A two-storey red brick house with white sliding sash windows, a black front door, and a tiled roof, complemented by a well-kept garden.

    What You Need to Know About Vertical Sliding Sash Windows in Lancashire

    Welcome to our comprehensive FAQ section, where we delve into the specifics of vertical sliding sash windows in Lancashire. Whether you're a homeowner, a trade customer, or simply interested in the blend of traditional design and modern performance, you'll find valuable insights here. Our answers are tailored to help you understand the benefits, features, and options available for these elegant windows.

    What are the key features of vertical sliding sash windows available in Lancashire?

    Vertical sliding sash windows in Lancashire combine traditional design with modern performance. They feature a smooth sliding sash mechanism, a wide range of style options and sizes, configurable astragal bars for authenticity, low U values for energy efficiency, and a variety of RAL colours. They also come with a 10-year insurance-backed guarantee.

    How energy efficient are the vertical sliding sash windows?

    These windows are highly energy-efficient, achieving U values as low as 1.4 W/m²K. This means they are effective in insulating your home, reducing heat loss, and thereby helping in energy cost savings.

    Can I customise the appearance of my vertical sliding sash windows?

    Absolutely. You have the option to choose from over a hundred distinct shades and tones, including vibrant Reds, elegant Creams, and traditional woodgrain foils. This level of customisation ensures that the windows can match any property style and personal taste.

    What material options are available for these windows?

    Vertical sliding sash windows are available in both UPVC and aluminium, offering a choice between two durable and aesthetically pleasing materials. Both options provide excellent performance and looks, catering to different preferences and budgets.

    What advantages do these windows offer for homeowners and trade customers?

    These windows offer a blend of aesthetic appeal and functional benefits. They allow for ample air and light with their simple slide mechanism, suit various budgets and tastes with multiple style options, and ensure longevity and reliability with a 10-year guarantee. They are ideal for enhancing both the appearance and performance of any property.

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      Full house installation with flush sash windows

      “The front of our home looks totally different now, following installation of our new Endurance Composite door. Our home is also less drafty.
      Communication by Great Harwood Windows was excellent, door was fitted on the scheduled date and time at the agreed price. Our home was left clean and tidy, old door was taken away. Excellent service, highly recommended.”

      Mrs Pentony - Blackburn

      March 28, 2025

      “New conservatory roof. Very professional and efficient team of fitters. No complaints whatsoever
      Thank you Great Harwood Windows job well done. On time and on budget!”

      Mr Hutchings - Blackburn

      March 28, 2025

      “All went really well from start to finish, communication was great and the fitters where excellent. Very friendly and have done a great job. Would happily use again.”

      Mrs McAuley - Darwen

      March 28, 2025

      “Really happy with the service from GHW, excellent survey and sales visit, friendly and low pressure. The order was fulfilled to perfection, and was double checked before parts were made and once again before installation. Installers were friendly, professional and left our property clean and tidy. Queries were dealt with swiftly and to our satisfaction. Will definitely recommend and use again.”

      Mr Barrow - Great Harwood

      February 27, 2025

      “I can’t tell you how pleased I am. They look stunning. The service I have received from start to finish has been fantastic which is rare these days. I’d be happy to recommend you to anyone who needs new windows.”

      Mrs Smith - Pendle

      February 7, 2025

      “We would just like to pass on our thanks and gratitude for an excellent standard of service and  professional workmanship received from you when replacing our conservatory roof this January . They all work incredible hard and completed the task ahead of schedule . Your workforce from planning, installment etc. are a credit to your company and we also prefer to support local businesses.”

      Mrs Towne - Blackburn

      January 31, 2025

      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.

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      Get in Touch

      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.

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