PVC Sliding Sash Windows

Box Sash Windows in PVC

The Box Sash Window or Sliding Sash Window originated in the 17th Century and continues to be popular in 2016. KAT PVC Sliding Sash Windows offer the timeless aesthetics of traditional timber Georgian windows, with the added benefit of being virtually maintenance free.

PVC Box Sash Window combine modern engineering with an authentic feel, providing you with a window with excellent thermal properties, to keep your home warm.

From a distance, it can be hard to tell whether the KAT Mayfair Sliding Sash Windows are PVC or Timber as they are manufactured with mechanically jointed outerframe and sashes, have a deep bottom rail and mechanically jointed sash horns.

View our gallery of Sliding Sash Windows

Box Sash Sliding Windows

Box Sash Sliding Windows

Features of KAT Sliding Sash Windows

  • Spiral spring balance mechanism
  • Virtually maintenance free
  • Suited window furniture including sash lifts, hook and claw catches, ring pulls and child restrictors
  • All frames are made to measure
  • Glazed with 24mm double glazed argon filled units

Email KAT to request a quote or a brochure



Chrome Sash Lift


Sash lift in pewter finish


What colour can my PVC Sliding Sash Window be?

KAT Mayfair Sliding Sash Window is supplied in a White Ash Grained finish as standard, but a wide range of RAL colours can be supplied. Visit the KAT Website to see the 3 styles of Box Sash Window available at KAT, all made to bespoke sizes.

Can I see the windows before I buy?

We have a showroom in Macclesfield, Cheshire and in Newhaven, Sussex where our PVC Sliding Sash windows can be demonstrated. No appointment is required.  Find the address of a KAT Showroom.


Box Sash Windows made to bespoke sizes

Box Sash Windows made to bespoke sizes

How can I clean the outside of my windows?

KAT Sliding Sash Windows can be manufactured with a tilt facility, meaning that even when fitted in the upstairs of your home, you can simply tilt the window and reach to the outside to clean the glass, saving £’s on window cleaners.  View our images.


Sliding sash window with tilt option


Contact KAT on 01625 439666 to discuss our windows or to request a complimentary brochure or visit our website at katuk.co.uk


KAT also manufacture Aluminium and PVC doors and windows in a wide range of colours and sizes.