Sliding Windows Collection

Imagine Vertical SliderImagine Vertical Slider 2Imagine Vertical Slider 3

Imagine Vertical Slider

The Imagine Vertical Slider carries all the beauty of a design classic, combined with the latest industry thinking. Spring and spiral balances and a unique tilt facility allows the sashes to open inwards for easy cleaning of the outside glass.
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product specification

Maximum sash sizes

1400mm (w) x 2450mm (h)

Outer frame

70mm x 146mm outer frame


50mm upper sash

64mm lower sash

105mm lower sash bottom rail


Available in a large assortment of colours and woodgrain options from the Variations range


beads 28mm sculptured 32mm sculptured


Frame extensions and cills

Range of coupling options

Range of bay pole options

Thermal performance*

Achieves U-values as low as 1.4 W/m2 K using double glazing

Achieves U-values as low as 1.2 W/m2 K using triple glazing

* Figures can vary dependent on specification.

Frequently Asked Questions

The Imagine Vertical Slider boasts a host of impressive features that not only add to its good looks, but also enhance its performance as well as ease of fabrication and installation. A fully sculptured 146mm outer frame and sculptured sash, a co-extruded chamber, and an intelligent approach to coupling are just a handful of the many clever details that work together to deliver the most technically advanced Vertical Slider on the market.

The sliding window is designed to be extremely ‘fitter friendly’ and should be a straightforward undertaking for experienced and professional installers.

We provide fabricators and installers with a BSI notified and BFRC certified window and door energy performance calculator, along with wind load calculations. Fabricators are offered an indicative in-house testing facility for all our products, and our windows and doors are available as BIM objects for all relevant specifications. 3D models, completed with guidance documents, are also provided. We can also provide feasibility drawings, CAD blocks and cross section details to assist specifiers who are looking to use our systems on their projects.

The difference between VEKA, Halo and Imagine windows is one of personal choice.
All products meet BSI Kitemark standards, hold 10-year guarantees and undergo rigorous testing to ensure the highest performance levels.
Our windows are designed and manufactured to fit all types of buildings, so customer preference will determine the final decision.

Imagine Vertical Sliders can be fabricated with mechanical joints or fully welded. The option of mechanical joints to both sash and the outer frame adds to the timber-like aesthetic.

Our Vertical Sliding Windows meet the highest security standards of PAS 24. The classic design combines versatile elegance with robust security including multipoint locking. For added safety, we are also committed to ensuring our windows pass the high standards set out by the Police Preferred Specification.

The timeless design of Imagine Windows makes them a perfect choice for heritage-conscious homeowners and period buildings with historic charm. Boasting state-of-the-art industry technology, the versatile system is equally suited to stylish new builds with modern appeal. Contact our team for more information.

Yes. A coupling nut can be used as an alternative and simpler way to connect profiles. This ‘invisible’ fixing sits between the outer frame of each window so there’s no need to drill through the visible frame. A concealed coupling cover finishes the job off nicely, both inside and out.

Sculptured Georgian bars, a choice of sash horn, the option of a deep base rail and the ability to add a woodgrain texture can all be used to create a number of authentic styles. If your customer lives in a conservation area, make sure they speak to their local authority for advice.