Products | Vertical Sliding Sash Windows | Vertical Sliding Sash Windows

Vertical Sliding Sash Windows

Branch Locations
Express Trade Windows currently has 1 depot, with more planned before the start of 2020.


Many houses in Britain still retain their original wooden sliding box sash windows. For those customers who are trying to maintain the traditional appearance of their homes, Starglaze are able to offer a PVCu vertical sliding window, which although it looks similar, will outperform the older traditional box sash windows.


the Spectus range is available in the following range of colours. Please note that a “Laminate”is a woodgrain effect foil which is applied to our standard base profile. A non-laminated profile does not have a woodgrain effect.

  • White White (both sides Non-laminated white)
  • White Laminate/White Laminate
  • Cream Laminate/Cream Laminate
  • Rosewood Laminate/Rosewood Laminate
  • Golden Oak Laminate/Golden Oak Laminate

Colours Available

We have a range of colours available in this product. See below for our colour options:

Energy Rating

Our windows are measured using the Window Energy Rating Scheme (WER), similar to the white goods in your home, with an “A” rating being better than a “C”. Please then delete from “our standard reinforced to 0.683 w/m2k.

Once glazed with our high performance units with a u'value for the glass of 1.2 W/m²K, our standard reinforced vertical sliding windows attain an A rating, with an overall u'value of 1.5 W/m²K.