Window proportions
Balanced upper and lower sashes help preserve the characteristic vertical appearance.
Windows
Sliding sash windows for traditional vertical proportions
Sliding sash windows open vertically and are strongly associated with Georgian, Victorian and Edwardian properties. Modern frame systems retain that familiar arrangement while reducing routine maintenance.
Made to measureProfessional installation10-year guaranteeFree quotation
Product overview
Preserve character without retaining tired frames
The success of a replacement sash window depends heavily on its proportions and detailing. Frame colour, sash horns, glazing bars and hardware all influence how comfortably it sits within the elevation.
Prime will discuss the appearance you want to retain and the practical requirements of the room before preparing the specification.
Planning your project
Details to consider before ordering
Glazing bars
The chosen pattern should suit the property rather than being added without reference to its style.
Hardware
Handles, lifts and catches provide the finishing detail and should be easy to operate.
Is this right for your home?
Sliding sash windows may suit:
- Older and period-style homes
- Front elevations
- Replacing tired timber sashes
- Projects where vertical proportions matter
We can compare this option with the other products in the windows range during your consultation.
Compare all windowsLocal fitting service
Installed across the West Midlands
Prime is based in Stourport-on-Severn and undertakes installations throughout Worcestershire and the wider West Midlands.
Helpful advice
Research sliding sash windows before you decide
Use our detailed guides to compare products, understand the important specification choices and prepare useful questions for your quotation.
01Windows/7 minute read
Browse all homeowner advice A practical guide to choosing replacement windows
Plan replacement windows with confidence by comparing styles, opening layouts, glass, ventilation, colours, fitting and written quotations.
Read the guide →02Windows/7 minute readWhat are the practical advantages of double glazing?
Understand the practical advantages of modern double glazing, including comfort, noise reduction, maintenance and security considerations.
Read the guide →03Windows/7 minute readWhat makes uPVC windows and doors energy efficient?
Learn which parts of a uPVC window or door specification influence heat loss, draughts and comfort before requesting quotations.
Read the guide →Questions about sliding sash windows
Useful information before you enquire
Do modern sash windows slide vertically?
Yes. The opening sash or sashes move vertically within the frame, depending on the chosen system.
Can sash windows include glazing bars?
Glazing bar options are available on many systems. We will confirm the patterns and details offered for the selected window.