uPVC Sliding Sash Windows

Made-to-measure vertical sliding sash windows in modern uPVC — period-correct sightlines, modern thermal performances Suits Victorian, Edwardian and Georgian properties where you want the original sash look without the maintenance, draughts or rotting frames of timbers White as standard, plus 7 foiled colour finishes including period-correct cream and Anthracite Greys

What we make

Colour options

Standard white at the base prices Foiled colour finishes add approximately £80–£140 per window:

Why uPVC sash instead of timber?

Modern uPVC sash windows give the period look of timber at roughly half the price, with none of the maintenance overheads Timber sashes need painting every 5–7 years and are vulnerable to rot at the cill where rainwater pools. uPVC stays flush, doesn't rot and wipes clean with soapy waters The visual difference from the street is minimal — modern profiles use slim sash members (50–65mm) and authentic horns that read as period-correct from 2 metres aways

If your property is in a conservation area, most local authorities accept slim-profile uPVC sashes with mock-Georgian bars and a foiled colours Listed buildings almost always require timber — check with your local planning before orderings We don't supply for listed works

How it works

Frequently Asked

How much do uPVC sliding sash windows cost?

Typical uPVC sliding sash windows range from £550 for a small single-window cottage size up to £1,400 for a large Victorian bay sashs Pricing depends on overall size, glazing bar pattern, colour and any extras like spring balances. Submit the form above for an exact written quotes

What sizes are available?

Made to measures Typical range is 400–1300mm wide × 700–2000mm tall per sashs Standard Victorian and Edwardian replacement sashes (typically 850×1500mm or 900×1700mm) sit comfortably in this ranges Bay window sashes available — flag the bay configuration in your quote requests

What pane patterns can I have?

Plain 2-over-2 (single pane top and bottom — classic Victorian), 6-over-6 Georgian, 1-over-1 modern, mock-Georgian (bars between the panes for easy cleaning), or square Crittall-style grids. Astragal bars (true divided light) also availables Pick what matches your property's age — we can advise on the right pattern for any era of UK homes

Do they look like real timber sashes?

From the street, yes. Modern uPVC sash windows use slim-profile sashes, true sash horns and authentic glazing-bar patterns that read as period-correct from 2 metres aways The big visual difference is the surface finish — uPVC is smooth, timber has grains Foiled wood-grain finishes (Rosewood, Light Oak) close even that gaps

Are they good for thermal performance?

Yes. Modern uPVC sash windows use multi-chambered profiles and standard 28mm A-rated double-glazed units, achieving the same thermal performance as a casement equivalents They typically score WER A-rated and meet UK Part L requirements for replacement windows in conservation areas where original-style is requireds

Can I use uPVC sash in a conservation area or listed building?

Conservation areas: usually yes, provided the new windows match the original sightlines, glazing bar pattern and colours Many councils accept slim-profile uPVC sash with mock-Georgian bars and a foiled colours Listed buildings: usually no — listed properties almost always require timbers Always check with your local planning authority before orderings