Vertical Sliding Sash uPVC Windows

A range of quality Vertical Sliding Sash uPVC Windows for your home.

Beautifully designed with excellent energy efficiency

If your Sash Windows are in need of changing or if you simply desire returning your home’s appearance back to a more time-honoured image, our Vertical Sliding Sash uPVC windows may be the perfect answer. Unlike our Mock Sash window design, a Vertical Sliding Sash window is constructed of one or more manoeuvrable panels of framed glass, which slide vertically in order to open the window.

We supply both Vertical Sliding Sash uPVC windows and Mock Sash uPVC Windows. Browse our range below or contact our friendly team for advice and information on 01932 344 415.


  • Beautifully classic in image
  • Maximum security with reinforced frames
  • Extremely energy efficient

Fensa Registered Company

FENSA is an acronym for the ‘Fenestration Self-Assessment Scheme’. Set up by the Glass and Glazing Federation, it allows double glazing companies to self-certify compliance with Building Regulations. There are several reasons why you should check for the FENSA logo when looking to have new windows and doors fitted in your home.

BSI Kitemark - Window Installation

Sheerwater Glass is one of only a handful of companies that has achieved the industry’s highest standard, BS 8213 for the survey and installation of windows and external door sets.

QA National Warranties

The insurance intermediary company QANW is responsible for protecting consumers through insurance policies. QANW has been in the business for over 25 years and has formed close associations with various building contractors and trade associations throughout the UK.

City & Guilds - Level 3 Qualified

The educational organisation City & Guilds are known for their vast levels of assessment, offering employees and workforces with the skills they require for many years. This seal of approval provided through their accreditation gives customers the confidence they require. Two of our employees, one in management and the other in our service department are qualified to City & Guilds level 3. This level of accreditation is highly sought after, with City & Guilds working with some of the leading brands of various sectors to offer the highest standard of training. The accreditation offered by City & Guilds is valued significantly, showcasing a business’s expertise, dedication and knowledge. In achieving this level of qualification, customers can feel assured that they are receiving the highest standard of work and customer service. City & Guilds and the City & Guilds logo are trademarks of the City and Guilds of London Institute and used under licence.

Checkatrade - Proud Members

Finding a tradesman is not always an easy task, especially when you’re unsure whether he or she is trustworthy. After all, you’ll be inviting this person into your private home, so you need make sure that they are reliable.

GQA Qualified

GQA Qualifications is an Awarding Organisation for specialist sectors and occupational roles. Qualifications cover the Glass, Construction, Coating and Print industries.

PASMA Tower Trained

Our team are fully trained in the assembling, dismantling, moving and inspecting mobile access towers and working at height.

BFRC Rated

Our products are BFRC rated, an independent verification of the energy efficiency of our windows and doors. BFRC rated energy efficient windows and energy efficient doors carry a ‘rainbow’ label.

  • custom design

    Custom Design

    It’s easy to customise your vertical sliding sash uPVC windows, with a range of styles, colours and finishes available. With a fantastic standard of design and beautifully classical image, our team of window designers are on-hand to help you achieve a truly bespoke window solution. Whether a traditional or modern property, vertical sliding sash uPVC windows are suitable to properties of any style.

  • energy-efficient

    Energy Efficiency

    Our vertical sliding sash uPVC windows don’t just look fantastic, they perform excellently too. With a chambered frame cross-section preventing heat loss and a triple brush seal preventing draughts, our sash windows are incredibly energy efficient. Here at Sheerwater Glass, we take great care in sourcing and installing high quality products and materials that continue to perform well. With their impressive energy efficiency rating, our sliding sash windows can help cut the cost of your household bills too.

  • shield

    Secure

    We take great care in sourcing and installing high quality products that we know we can rely on. Our vertical sliding sash uPVC windows are not only flawless in appearance, but they perform excellently too. With steel reinforced frames to maximise security, our sash windows feature a smooth and frictionless gliding mechanism for easy opening and maximum security.  Rest assured your home and family will be safe and secure with this timeless window solution.

Browse our range by material or by style...

We have a wide variety of colours available to choose from.


Available Colours

  • AnTeak
    Anteak
  • Agate Grey
    Agate Grey
  • Anthracite Grey
    Anthracite Grey
  • Basalt Grey
    Basalt Grey
  • Black Brown
    Black Brown
  • Brilliant Blue
    Brilliant Blue
  • Chartwell Green
    Chartwell Green
  • Cream
    Cream
  • Dark Green
    Dark Green
  • Dark Oak
    Dark Oak
  • Dark Red
    Dark Red
  • Golden Oak
    Golden Oak
  • Hazey Grey
    Hazey Grey
  • Irish Oak
    Irish Oak
  • Light Oak
    Light Oak
  • Mahogany
    Mahogany
  • Natural Oak
    Natural Oak
  • Rosewood
    Rosewood
  • Rustic Oak
    Rustic Oak
  • Sienna
    Sienna
  • Signal Grey
    Signal Grey
  • Slate Grey
    Slate Grey
  • Slate Grey Finesse
    Slate Grey Finesse
  • Steel Blue
    Steel Blue
  • Swamp Oak
    Swamp Oak
  • Walnut
    Walnut
  • White
    White
Click to view additional information

uPVC Vertical Sliding Sash Windows technical details

  • High insulation factors designed to maintain A-rated energy efficiency
  • High security values
  • Chambered frame cross-section prevents heat loss and draughts
  • Triple brush seal to prevent draughts
  • Steel reinforced frames
  • Smooth and almost-frictionless gliding mechanism for easy opening
  • Huge opening space – half the size of the total window area
  • Extremely easy to clean from inside and outside of your home
  • Double-glazing available

uPVC Vertical Sliding Sash Windows | More Information

At Sheerwater Glass, our uPVC Vertical Sliding Sash Windows offer a fantastic standard of design and a beautifully classical image. Often referred to as having a cottage-like appearance, any home can be transformed with a set of attractive and lavish Sash Windows.

We have an array of styles, colours and finishes to suit the design of any home and each set is individually produced. At Sheerwater Glass we also offer a range of different decorative features and finishing touches. These include Georgian bars across the panels and sumptuous decorative horns.

Need more information? We’re happy to discuss our range of Sash Windows or advise you on your installation plans. Contact our expert team today.

Get a Free Quote