Van Acht’s revolutionary patented pneumatic gas lift system has been designed specifically to replace the traditional bulky unreliable, and outdated weight and pulley sliding sash. We have developed (in conjunction with German engineers) a safer, lighter, more reliable, virtually silent alternative to the traditional sliding sash. The gas lift system has been tried and tested in the motor industry for over 20 years.

The benefits of this system include:

  • Weight reduction
  • Silent operation
  • Lower cost
  • Easy maintenance
  • Great reliability
  • Get price instantly by Email. Instant online quote estimate system.

Unique patented pneumatic gas lift system to open and close


Van Acht Sash Windows Feature

Mock Sash Windows

Sash windows emphasise functionality. Panels within the window frame enable the window to slide up when opened, and back down again when closed.

Van Acht Mock Easy-Lift Sash Windows Feature

Easy-Lift Sash Windows

The Van Acht mock easy-lift sash window boasts a combination of the slide mechanism and a separate top section which can be opened on a hinge.


Van Acht Platinum Windows Feature

Platinum Window Range

Our highest quality top of the range windows, the Platinum Range are so special that we can only talk to you about this product in person.

  • For more information, speak to a sales representative
Van Acht Manor Windows Feature

Manor Window Range

Van Acht Meranti Windows offers long-lasting quality, comfortable functionality and durable structure.

Our Manor Range Windows passed the SANS 613 performance test, to comply with new SANS 10400xA regulations.

Read more
Van Acht Calyptus Windows Feature

Calyptus Window Range

The Van Acht Calyptus wooden window range is manufactured exclusively from the Eucalyptus Grandis trees. Our Calyptus window range is intended as better priced alternative to our Meranti manor window range.


This range has passed the AAAMSA performance test.

Read more
Van Acht Window Arch Feature

Arched Windows

These Meranti wood arched windows have a very classic look to them and provide a softer atmosphere than regular rectangle windows.

Read more


Van Acht Aluminium Feature

Aluminium Windows

Ve have various aluminium windows in standard sizes and custom designs. The same care and finesse is put into making these windows as is put into our wooden range.

Read More


Van Acht is a REHAU authorised windows and door fabricator and installer. Van Acht uPVC windows are made to your exact specification and requirements.

Van Acht uPVC Windows Feature

uPVC Windows

REHAU’s Ecotec window is the profile of choice for new builds and retro-fit projects.

  • Tilt & turn windows
  • Casement windows
  • Fixed windows
  • French windows
Read More
Rehau logo
Why choose uPVC?