A painted London terrace with sliding sash windows throughout, iron railings and a blue sky

uPVC sliding sash windows

The character of the originalLet the light in.

Window styles

Four looks. Pick the one that matches your house.

Every window is made to your opening, so the choice here is about how it looks, not what will fit.

See all options
Sliding sash window with Georgian glazing bars in a stone elevation
Conservation areas

Georgian bars

Panes divided into a grid, like the originals. Usually what a conservation officer wants to see.

Sliding sash window with plain glass and no glazing bars
Most popular

Plain glass, no bars

Nothing dividing the panes. The most daylight and the clearest view. What most Victorian houses had.

Sash window fasteners, lifts and finger pulls in Antique Gold and brass finishes
Eight finishes

Hardware

Sash fasteners, lifts and inset finger pulls in eight finishes, including Antique Gold. The detail you touch every day.

Sliding sash windows sprayed in a deep red, set in a white rendered cottage
Any RAL or Farrow & Ball

Colours

Sprayed to any classic RAL shade or matched to a Farrow & Ball colour. Inside and out need not match.

Energy & security

Warm, quiet, and hard to get into.

The two things that actually decide a sash replacement: what it costs to heat the room, and whether the window opens for anyone but you.

Energy

A+ rated

A+ Window Energy Rating. Warmer rooms, lower bills, and no draught coming through where the two sashes meet.

  • Weather bar joined into the bottom sash, pushing rain off the sill instead of into the frame
  • Made to measure and colour matched, so there are no packers and no gaps to draught through
  • Wind resistance tested to Class C4 at 1600 Pa under BS EN 12211
  • Tilts inward for cleaning, so upstairs windows never need a ladder
See the glazing options

Security

PAS 24: 2022

Also available as a Secured by Design window, the police-backed standard. Required if the property was built to Document Q.

  • A steel bar built into the sash so it cannot be forced open with a crowbar
  • High-security cam locks holding both sashes, top and bottom
  • Jam blocks fitted to the top of the sash, plus travel restrictors as standard
  • Toughened glass on accessible openings
Add security to my quote

Two ways to buy

We fit them, or we deliver them to you.

Fitted by us

West London & the Home Counties

  • We survey before anything is ordered, so the sizes are ours to get right
  • Fitted by our own teams, never subcontracted out
  • FENSA certificate and an insurance-backed guarantee on completion
  • Old windows taken away and the plaster made good
Book a free survey

Supply only

Delivered anywhere in Britain

  • Made to your sizes, from your schedule or your survey
  • Full control of colour, glass, hardware and bar layout
  • Lead times confirmed in writing before you order
  • Kerbside delivery nationwide
Send us your window schedule

Who we work with

Tell us which you are and we will send the right thing.

Homeowners

You want to know what it will look like, what it will cost, and how long you will be without a window. Send a photo and we will price it.

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Architects & specifiers

Sections, U-values, PAS 24 scope and Document Q compliance, plus RAL and Farrow & Ball matching for your finishes schedule.

Request the spec pack →

Developers

Whole-plot pricing, phased delivery to site, and one schedule covering every elevation. Supply only or supplied and fitted.

Price a development →

Builders

Trade terms, firm lead times and kerbside delivery to your site anywhere in Britain. Made to the sizes you give us.

Open a trade account →
Any colour
RAL or Farrow & Ball

Sprayed to any classic RAL shade, or matched to a Farrow & Ball colour.

FENSA
Registered installer

Building Regulations certificate issued to you on completion.

Guaranteed
Insurance-backed

Cover that stands behind the work even if we are not there to honour it.

British
Manufactured

Made in Llanelli by Victorian Sliders. Nothing imported.

Who makes them

ECOSlide®, by Victorian Sliders.

We are a Victorian Sliders partner. Every window we supply is an ECOSlide® sash, made in Llanelli and finished to your order.

Every ECOSlide® window is manufactured bespoke to meet virtually any personal requirements; with bespoke sprays of any classic RAL colour or Farrow and Ball colour matching, shaped frames, custom glass and our own exclusive range of hardware in a range of finishes.Victorian Sliders

A+ rated · PAS 24: 2022 · Secured by Design · FENSA registered · 10 year warranty

Get a free quote for your sash windows.

Tell us where you are and roughly how many windows. We will come back with a written quote, no appointment needed and no salesman on your sofa.

Call us0800 861 1450Mon to Fri, 9am to 5pm
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