Why Choose T&K for uPVC Sliding Sash Windows?

When renovating a property with authentic uPVC sliding sash windows, you should never compromise. You need to work with a local installer that not only understands the area but also brings enough experience to complete the job properly. With T&K, you get exactly that.

We have been serving the Wellingborough and Northamptonshire areas for over four decades, working on thousands of period and modern homes over that time. We’ll treat your house with the care it deserves, helping you correctly maintain the period charm with a range of customisable vertical sliding sash windows.

Whilst this style of window originated in the 17th century, they are still popular today for both modern and older homes due to their versatile range of designs. Opening via a smooth sliding mechanism and with their own range of security features, they provide exceptional levels of performance to keep your home comfortable and protected.

Vertical sliding windows have a unique upwards opening mechanism that makes ventilation easy, and we fit them with a number of sophisticated security features to limit the size of the opening, keeping your home protected.


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What Do uPVC Sash Windows Offer?

Vertical Sliding Mechanism

Our uPVC sliding sash windows open in an upwards motion, rather than opening outwards as a conventional casement would.

Modern Glazed Units

Unlike authentic timber sliding windows, the uPVC systems we install are fitted with thermally retentive and durable glass as standard.

Discrete Hardware

The secure locks and modern hardware of these windows are obscured from view, to not affect the overall visual appeal.

Durable Design

By using quality locking systems and robust materials, our uPVC sliding sash windows are durable and keep your home protected.

Weatherproof Measures

Weatherseals and additional weather protection engineering ensures your sliding windows never rot, warp or leak.

Authentic Details

To achieve authentic period aesthetics, our uPVC sliding sash windows can come with a range of window furniture such as run thru horns, astragal bars and much more. Create the perfect sliding sash windows for your Wellingborough or Northamptonshire home today.

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uPVC vertical sliding sash windows wellingborough

Low Maintenance

The windows are virtually maintenance free and will continue looking their best with only the odd wipe down.


Incredibly Secure

Featuring locking cam catches and a reinforced meeting rail, they are rigorously secure.


Draught Protection

Vertical sliders are fitted with draft excluding wool-pile and seals, ensuring your home remains draught free.


Quick Turnaround Times

As our uPVC products are constructed by our sister company, Emplas, they’ll be available to you swiftly.

Customise your uPVC vertical sliding windows with a range of...

  • colours
  • glazing options
  • furniture
  • colours

    T&K’s range of uPVC vertical sliders are available in an extensive range of stunning colours and woodgrain effect finishes. Choose from almost any RAL colour or opt for a dual colour option. Some of our most popular uPVC colours are pebble grey, sage smooth, claystone and cream. For a list of alternative window colour options, follow the link here.

    glazing options

    Our uPVC vertical sliders are fitted with a low emissivity 24mm double glazed argon filled sealed unit, ensuring for impressive levels of thermal performance, security and noise reduction. We also offer a selection of decorative glass options, which you might like to incorporate into your window's design. You can view them by following the link here.


    Customise your vertical sliders with a range of well-crafted accessories, including sash lifts, locking cam catches, run-through horns and spiral sprung balances. These can then be finished in a number of colours. At T&K, we understand the importance of individuality when it comes to home-improvement solutions. To view our full selection of window furniture options, follow the link here.

    Locking Cam Catches

    Locking Cam Catches

    Sash Lift

    Sash Lift

    Sash Eye

    Sash Eye

    Run Through Sash Horn

    Run Through Sash Horn

    Download our windows buying guide

    Are you looking for new windows for your home? This buying guide contains all the information you need to find the right windows for you.


    More About Sliding Sash Windows in Northamptonshire

    Fully Bespoke Vertical Sliding Windows

    At T&K, we only install made to measure uPVC sliding sash windows. We believe you should never settle for a compromise, and you get the perfect windows for your home. Whatever Roseview vertical sliding model that you choose, you’ll gain full control over a whole host of customisation elements.

    From the size to the style and finish of the accessories, you’ll create uPVC sliding sash windows that are tailor made to your Northamptonshire home. We have a full portfolio of coloured foils and can additionally offer authentic woodgrains.

    Chartwell Green uPVC Vertical Sash Windows Northamptonshire
    uPVC bay style vertical sliders Northamptonshire

    Low Maintenance uPVC Sliding Sash Windows

    If you live in a property that still has its original vertical sliding windows, you’re likely burdened with an excessive maintenance requirement. Outdated windows in this style often regularly need repainting, re-varnishing and moving components are always needing to be oiled and greased.

    By renovating and upgrading with our uPVC sliding sash windows, these become problems of the past. uPVC is fully weatherproof, meaning they perform all year round. You should only ever need to give them an occasional wipe down to ensure dust or debris doesn’t build-up over time.

    Weatherproof uPVC Sliding Sash Windows

    Many older sash windows struggle to provide a sufficient standard of weatherproofing. Permeable materials and outdated weatherseals can leave your home vulnerable during bad weather. Damp spots and mould can prove expensive to fix and leaking can cause damage to your furniture and possessions.

    Upgrade to our uPVC sliding sash windows to have peace of mind. Modern seals, trickle vents and naturally weatherproof materials protect your home from wind, rain and snow, both now and for the decades to come.

    Interior of uPVC Sliding Sash Windows Northamptonshire
    Made In Britain logo


    What profiles are Used?
    Our designated supplier of uPVC sliding sash windows is Roseview, the market leaders. They provide us with all three of the profiles they engineer.
    Are Sash Windows Guaranteed?
    We back our Made in Britain uPVC sliding sash windows with a ten year guarantee. We’re on hand with a superb aftercare service, should you require it.
    How Long Does Installation Take?
    Our sister company, Emplas, can deliver your order for sliding windows extremely quickly. We are extremely efficient in installing sash windows meaning you will not have to worry about a long process.

    Want to know more? Check out our FAQ page.

    How much will it cost?

    T&K ensures all our products are competitively priced, offering fantastic finance options, so our products are as affordable as possible. Finance Options

    What about planning permission?

    We work collaboratively with our customers and local planning authorities to ensure the necessary planning permission is attained before any work is undertaken. Enquire now

    Is work guaranteed?

    Any installation work performed by the expert T&K team comes with a 10 year guarantee as standard. A devoted aftercare service is also available, after job completion. Enquire now

    How long will it take?

    As our sister company, Emplas, manufactures a number of our products, our turnaround times are significantly reduced compared to other installers. Enquire now

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    Fully accredited company

    With full accreditation from the appropriate regulating bodies, you can feel assured of the quality that’s on offer.

    Which? Trusted Trader
    Secured by Design

    Serving homeowners across Northamptonshire

    During our tenure as traders, we’ve provided bespoke home improvement solutions across the Northamptonshire area and beyond. This includes areas in counties like Oxfordshire and Buckinghamshire. We've installed home improvements in places such as Corby, Northampton, Bedford, Kettering, Milton Keynes, Cambridge, Aylesbury, Oxford, Rugby, Bicester, Luton, Market Harborough & Banbury.

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