uPVC casement windows are the nation’s favourite

Our range of uPVC casement windows can be designed in a plethora of colours. We also offer a number of authentic woodgrain finishes for homeowners looking to gain the benefits of modern uPVC whilst adding a touch of traditional character to their home. For a unique replacement window solution, you could choose to incorporate decorative glass and any pieces from our window furniture collection. Our range of uPVC casements features a stunning sculptured edge design in the profile with mere frame depths of 70mm, providing a modern appearance.

Our modern uPVC has a multi-chambered design, which means that they are able to retain the heat in your home superbly and stop any draughts from entering, helping you to save money on your energy bills. When fitted with either our double or triple glazing, they can achieve A+ energy ratings and U-values as low as 0.8, so your home will be kept at a comfortable temperature. As a naturally durable material, they will keep your home protected from harsh weathers without weakening for over 35 years. We finish the frames in a protective coating so that they won’t fade or require any maintenance to look like new. You can be sure that your home will be kept secure as we incorporate a number of security features into our uPVC casement windows, including multi-point locks and beaded frames.

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Thermally Efficient

With a Window Energy Rating (WER) of A+, we supply some of the best performing casements in terms of thermal efficiency. Plus, RCM Thermal Inserts are available for a further boost.


Ultra Secure

Featuring a central Eurogroove and a secure bead system, the strength and security of our uPVC casements is bolstered significantly.


Exceptional Weather Resistance

T&K’s uPVC casements feature a 10mm overlap, ensuring for windows that will keep the weather firmly out of your home.


Quick Turnaround Times

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

Customise your uPVC casement windows with a range of...

  • colours
  • glazing options
  • furniture
  • colours

    T&K’s range of uPVC casements is available in an extensive range of stunning colours and woodgrain effect finishes. Make your new windows stand out with a bold and bright colour, or choose something more subtle to blend in with the rest of your home. Some of our most popular uPVC colours are pebble grey, sage smooth, claystone and Chartwell green. For a list of alternative window colour options, follow the link here.

    glazing options

    The profiles on our uPVC casements can take 24mm or 28mm double glazing, or 36mm, 40mm and 44mm triple glazing. Triple glazing options add a further boost to levels of security, noise reduction and thermal performance. You can also add a stylish feature onto any of them by opting for one of our decorative glass options. To view them, follow the link here.


    With a broad selection of cills, baypoles, accessories and packers, you can customise your new windows to your own refined tastes. At T&K, we understand the importance of individuality when it comes to home-improvement solutions. For more window furniture options, follow the link here.



    Window Cills

    Window Cills

    Trickle Vents

    Trickle Vents

    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.


    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.

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    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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