— Service · 08 / 08

Timber
casement windows.

Outside the sash-window vernacular — for cottages, mews properties and Arts-and-Crafts London houses — we make and install bespoke timber casements to the same standard as our sashes.

— When casement, not sash?

Five property types
that need casements.

Sash windows are the London period default — but a small number of property types call for casements as the historically correct choice.
  1. 01

    Cottages

    Pre-1700 vernacular cottages predate the sash window entirely.

  2. 02

    Mews properties

    Early carriage mews often used utilitarian casement glazing.

  3. 03

    Arts & Crafts

    William Morris-era builders favoured casements as honest, vernacular.

  4. 04

    1930s semi-detached

    Suburban interwar housing rarely uses sashes.

  5. 05

    Outbuildings

    Garden offices and converted outbuildings — casement always wins.

— Casement specification

Three opening
configurations.

WNDW casements ship in three configurations — side-hung, top-hung and tilt-and-turn — all in the same engineered timber and the same finish standards as our sashes.
  1. 01
    Side-hung

    Traditional cottage casement, hinged on the stile.

  2. 02
    Top-hung

    Awning style — better in driving rain.

  3. 03
    Tilt-and-turn

    Continental-style modern, secured to BS PAS24.

  4. 04
    Storm-proof

    Lipped frame, weather-stripped to all four edges.

  5. 05
    Flush

    Unlipped, modern aesthetic for contemporary builds.

— Casement FAQ

Common questions about
casement.

Slightly — less hardware, simpler joinery. Typical entry pricing £400 — £500 below comparable sash.

In the right property, yes. On a 1930s house or pre-1700 cottage, a casement is the historically correct choice and looks better than a sash forced onto the elevation.

Yes, in our timber range. PAS24 security as standard, integrated child-lock.

— Ready to start?

Free survey,
fixed quote.

Tell us about the property and we will come back within one working day with a window count, indicative price and the next available survey slot.

Workshop Unit 12, Park Royal,
London NW10 7XF
Service area All London boroughs
+ M25 corridor