uPVC Sliding Sash Windows

We install uPVC sliding sash windows across Winchester, Kings Worthy, Arlesford, Bishop’s Waltham, Cheriton, Hambledon, Bournemouth, Southampton, Romsey, Petersfield, Ferndown, Winton, Ringwood,  Portsmouth, Hampshire, Chichester, West Sussex, Wiltshire, Surrey, Dorset and surrounding areas.

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uPVC Sliding Sash Windows Prices

sliding sash windows salisbury


Timber Replication Perfected.

Ultimate Sash Windows

Unbeatably authentic, the Ultimate sash window is the pinnacle of sliding sash windows. The best aspects of modern uPVC materials and an indistinguishable timber aesthetic offer the greatest timber alternative sliding sash solution. Featuring our innovative and irreplicable 35mm midrail, it has a slim and sleek design that creates unparalleled style. Seamless run through horns and an internal interlock are just some of our handcrafted finishing touches that complete the look of these distinguished sliding sash windows. But the Ultimate isn’t just the ultimate in terms of style; it will also provide your homeowners with fantastic performance. A rated for its thermal efficiency, it’ll keep homes warm throughout the year, potentially also saving customers on heating costs. While the heat stays inside, noise will be kept out, with our Ultimate windows providing sound reduction, keeping your customer’s interior peaceful and quiet.

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Updated uPVC Sliding Sash Window Design

High quality sliding sash windows are the very pinnacle of modern double glazing. They expertly combine the period charm of original sash windows with the modern benefits of up-to-date materials, engineering and manufacturing methods.

Please find our range of styles, colours, and hardware below.

sliding sash window


Gone are the days where sliding sash windows brought a range of maintenance requirements to keep them looking and performing their best. With our range of designs, you’ll be able to avoid any sanding, painting, or draughty and rattling sashes. Bring lasting quality to your home, today.

  1. 1
    Modern Sash Function
  2. 2
    Slim Sightlines
  3. 3
    Contemporary uPVC Profile

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Request your online quote for windows, doors, bifolds doors, conservatories, orangeries, roofs and much more!

Better Soundproofing

We know that your home is the place where you reside to relax, so it’s important that you keep the outside world outside. Our sliding sash windows comprise a high-quality double glazed design that offers impressive acoustic properties, preventing noise pollution from affecting your living space. This means that our sliding sash windows are a fantastic option for homes in a built up area.

sliding sash window
Sliding sash window

Accredited Security

Our sliding sash windows enable you to enjoy the peace of mind that comes with modern design. Our windows combine steel reinforcement with high-security, multi-point locking systems that are integrated into the frame to prevent them from being used as a potential weak spot. This design has enabled them to achieve Secured by Design certification: the police preferred standard.

Glass Options

Arctic Glass Arctic
Autumn Glass Autumn
Chantilly Glazing Chantilly
Privacy Glass Prices Charcoal Sticks
Privacy Glass hampshire Contora
Cotswold Privacy Glass Winchester Cotswold
Bathroom Window Patterned glass Winchester Digital
Everglade Glazing options for windows Everglade
Bathroom window glass Flemish
Florielle Glass Option Florielle
Glass Options WInchester Mayflower
Minister Glazing Option Minister
Oak Glass Oak
Pelerine Glass Pelerine
Stippolyte Glazing Stippolyte
Sycamore Glazing Sycamore
Taffeta Glass Taffeta
Warwick Glazing Warwick

uPVC Sliding Sash Features

With our sliding sash windows, you’ll be able to keep the winter winds at bay with style. A high performance, multi-chambered profile works in harmony with contemporary weatherseals to keep the elements out of your home. With this in place, you’ll be able to enjoy a home that remains warm and comfortable throughout the year.

Due to their ‘A’ rated standard of thermal efficiency, our sliding sash windows could also help you to save money on your heating costs. With an enhanced level of heat retention integrated into your home, you could find yourself relying less on your central heating throughout the year. In turn, this could help lower your heating costs and thus reduce your carbon footprint.

To ensure you find the ideal sliding sash window design for your home, we offer three distinct collections to choose from. Our Charisma, Heritage, and Ultimate ranges are designed to offer different and stand out approaches to the original sliding sash window design. From the replication of the traditional charm through to offering a modern spin, we’ll have something to suit your taste. 

Choosing from one of these ranges will enable you to get a window installed into your home that not only serves to enhance to your property but also as an extension of your taste. With the traditional approach inherent in these designs, you can rest assured that you’ll be able to capture the core essence of the original sliding sash window without any compromises.

The Ultimate Sash is indistinguishable from genuine timber and one of the few uPVC sliding sash windows that can be used in conservation areas. Every detail of this window has been designed to replicate the charm and character of the traditional sliding sash design. This uPVC window is manufactured with a 35mm meeting rail, 10mm slimmer than the heritage.

Unlike other sliding sash designs, every detail of the Ultimate is painstakingly detailed. This allows you to make full use of the authentic mechanical joints, maintaining the slimmest sightlines of any uPVC Sliding Sash Window. This is the only window in the Ultimate Collection that features the traditional globe claw locks and a heritage sash hook fastener. 

The Heritage Sliding Sash Window design is a popular choice with the Winchester homeowner. This customisable design is made with all the traditional detailing of period timber sash windows. Manufactured with optimal limit stops, this restricts how far your sliding sash window will open. This makes it a perfect feature for those looking to install the window in a busy town centre area or in a home with children.

The Charisma uPVC Sliding Sash Window is one of the most cost-effective sash windows on the market. It’s been made to combine traditional sculptured ovalo sightlines with the benefits of modern uPVC. This window provides a more softer look to the Winchester homeowner. 

All of our sliding sash windows are designed in accordance with the demands and expectations of the modern age. With this in mind, we are able to offer you leading standards of thermal-efficiency, security, durability, light transfer, performance, appearance, and functionality.

This is demonstrated in the modern pre-tensioned balances that are guaranteed not to stick and by the inward tilting sashes allowing you to clean the outside of the windows from the inside. Additionally, they don’t have the traditional heavy sash usually associated with the original design and therefore facilitate in a smooth and easy operation every time.

View Our Sliding Sash Window Brochure & Video



Start a Sliding Sash Window Quote

Visit our quoting engine to start your sliding sash window quote. A member of our team will then be in touch to book a home visit, after which we will be able to offer a price that has been tailored to your exact specifications to help make things as cost-effective as possible.

Alternatively, you contact a member of our team directly to book your visit and we’ll always be on hand to answer any questions that you may have regarding our products or prices.


sliding sash windows

Our Testimonials

See what our customers have to say about their experience with County Windows!

I would like to record my delight at the work done by Andy. What a pleasant man and what a wonderful craftsman.

So very, very good.

Many thanks

Bournemouth - October 2021

The two workmen were not only very professional in dealing with the installation, clean and tidy whilst working, both obviously happy in their work, good sense of humour and very patient when explaining how to lock and unlock the doors. I thank you all at County Windows for all your work.

Winchester - August 2021

Work was done efficiently and in a friendly way. Would certainly recommend!

Winchester - May 2021

We were well received in show room with information but no pressure. Kept informed all the time. Fitter very pleasant and did a good clean job.

Southampton - April 2021

Good quality work and thorough attention to detail.

Petworth - April 2021

Helpful sales staff and door fitted within promised timescale. Quick and efficient and tidy on completion.

Ashley Cutler
Winchester - January 2021

We would recommend County.

Margaret Lions
Bournemouth - October 2020

Very professional business- customer focused and excellent craftsmanship.

Scott Foster
Winchester - August 2020

Very efficient and professional work.

Eastleigh - March 2020

Every part of the service was efficient and friendly, from the first phone call to completion.

Romsey - March 2020

Had front door installed today. Very efficient and tidy. Did it in awful weather! Thanks for doing a great job. Door looks amazing and feels very secure.

Kevin Drobecz
Winchester - February 2020
Thank you to you and all your colleagues involved in the project.  Without exception, everyone we have had on site has been a delight.  Everyone, from the word go has worked exceedingly hard to get the job done and, considering the weather, in exceptionally hard, cold and wet circumstances.  The guys have all been so helpful, polite, professional, courteous and friendly and nothing was too much trouble.
Double Glazing
Winchester - February 2020

My Conservatory is now complete. It looks wonderful. I would like to thank Gary and Greg for doing a great job outside and inside. They tended to every minor detail. The pair are a credit to your firm. I would also like to thank Nigel for overseeing all of the work.

Wiimborne - January 2020

Thrilled to bits with it all. Thankyou!

Double Glazing
Olivers Battery, Winchester - March 2018

I was invited to inspect every factor of their work on completion which, as stated, was of the highest standard.

Double Glazing
Kings Worthy, Winchester - July 2018

I wouldn’t hesitate to recommend or use County Windows again.

Customer in
Winchester - August 2017

Before retiring my husband worked for over 30 years in the industry so knew what standard of work he wanted from the various tradesmen. He could not fault any of them and we got the finished job we had hoped for. We are very happy and can highly recommend County Windows to anyone else considering them for similar projects.

Mrs Tomkin
Ferndown - March, 2019

County Windows replaced our conservatory roof, the installation team put our minds at rest from the very start. They did a fantastic job, and after the three days it took to do the job you would not have known they had been there. Our conservatory now looks great, thanks to all at County Windows, especially the installation team.

Conservatory Roof
Southampton - April 2019

I’m writing to say how pleased we are with our new conservatory roof. I have not contacted you before as we have been waiting for it to rain and it passed with flying colours. Also, my wife and I must mention the fitters, Jamie and Danny. We cannot praise them enough, they were always on time, kept us in the loop as regards to finishing off, the attention to detail was first class and they were pleasant to deal with. All in all, a very nice pair of lads. Thank you.

Conservatory Roof
Bournemouth - May 2019

I would like to thank you and the team for the replacement of our door and windows. It was a big concern to us and we spent some time deciding on who to order with. The team were polite and left the house looking clean and tidy, nothing was too much trouble.

Replacement Door & Windows
Eastleigh - May 2019

I just want to say how pleased we are with the re-glazed conservatory. It is a massive improvement and turned out every bit as nice as we expected. Your two people, Mark and Simon, were a pleasure to deal with, very considerate and did an excellent job on the installation and the finishing.

Conservatory Improvement
Bournemouth - June 2019

A very professional company No pressure selling. The installation team had a very high standard of workmanship with good time keeping and kept a tidy working area They also sent a installation manger to make sure we were ok with progress. Would recommend this company.

Mr Emery
Eastleigh - July 2019

A truly excellent job completed to a very high standard and with the minimum of disruption.

Mr Froud
Poole - August 2019

Excellent installation. Very professional. Would recommend. Top service!

Mr Fincham
Southampton - August 2019

Excellent service from survey/sales to installation.

Mr Cole
Eastleigh - August 2019

Excellent service from quote to installation of windows. Conscientious and courteous service.

Mrs Withers
Winchester - January 2022

Superb service throughout. The price was reasonable, follow up excellent. The fitter did a superb job at removing old unit and fitting new one. He was cheerful throughout the whole process. He left leaving no mess whatsoever. I will definitely use County Windows (Winchester) in future.

Mrs Scott
Winchester - January 2022

Excellent products service and workmanship wouldn’t hesitate to use again.

Mrs Wallace
Winchester - January 2022

We had 5 windows fitted in December 2021 and have been very pleased with them. This is a nice company to deal with and I highly recommend the installation team who were skilled, courteous and took the trouble to consult us on the fine details of the installation.

Mrs Renshaw
Winchester - January 2022

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County Windows - Quality Windows, Doors, Conservatories and Much More!

We have showrooms across the south including Bournemouth and Winchester, with teams based throughout Hampshire and Dorset.