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Vertical Slider Windows

VEKA’s Matrix fully-sculptured System is extremely popular.

Not only do these replacement sash windows look exactly like their traditional timber predecessors, they are also significantly more energy-efficient and much simpler to maintain. These technically advanced double glazed sash windows offer heritage and technology in perfect partnership.

Ideally suited to homes with a traditional look and feel, they offer the added benefits of improved heat retention and security. You no longer need to worry about problematic weights and cords or any of the drawbacks typically associated with traditional sliding sash windows such as swelling, squeaking or continual repainting.

The Vertical Sliding Windows can also be tilted inwards to offer easy cleaning. They are available in white, golden oak, rosewood or a huge selection of bespoke colours.

The VEKA Vertical Sliding windows are the perfect replacement sash window for the heritage retrofit market. It has been carefully designed to look virtually indistinguishable from the traditional timber variants, which means it can be well suited to installation in listed buildings.

Design Options


The universal design of these window frames allows for either overhanging or stub cill. The rear projection results in far less complex fabrication, meaning that the construction is simpler and less likely to create the opportunity for operator error.


Vertical sliding sash windows have the option of: horns which are screwed on, horns machined into the upper jambs or no horns at all. 


This sash window has been designed with bespoke gearing to accept various components from any of the major suppliers. The window will also accept heavy duty spring balances and trickle vents within the head of the frame. 


The Vertical sliding replacement sash window was designed to accommodate a Glazing thickness of 28mm, but when it is used with the 58mm bead range, it will accept glazing of any thickness whatsoever, making it a superb heritage sash window with advanced 21st century energy-efficiency. 

Bottom sash window: 

The system offers two bottom sash options: Four sided fully welded and three sided welded with mechanically coupled wide bottom rail. Energy efficient replacement sash windows from Independent Network will help minimise heat loss, saving costs on your heating bills and helping save the planet! 

Click here to view the vertical slider windows brochure