Vertical Sliders

At OnTime we offer Spectus PVC-u vertical sliders which are widely regarded as the best PVC-u sliding sash window available on the market. The Spectus Vertical Sliders aim to replicate the authentic appearance of timber sashes but without the drawbacks.


We’ve installed many Vertical Sliders in the Shepway district and many have been approved by local council planning, even in some conservation areas.

Available in a range of colours and woodgrain finishes with optional Georgian bars, sash horns, weather bars and a deep bottom rail designed specifically to provide that period look for your property.