Casement Windows

Our timber casement windows are crafted bespoke from sustainable timber and installed by our own professional fitters across London.

We can match any existing window style, both period and contemporary, providing double glazed and weather sealed
wooden casement windows with a range of hinging options.

Our flush casement windows meet UK conservation criteria and building regulations, combining crafted timber windows with modern thermal insulation qualities.

See our installations

TIMBER CASEMENT WINDOWS

Match your existing windows or choose your style
FENSA registered installers
Single, double or triple glazed
Draught proofing
Security locks & safety glass
Choice of lock & catch styles
Acoustic glass options
Listed buildings, conservation areas
Warranties for paint, glazing & timber
Farrow & Ball or RAL colour, microporous paint
View types of casement windows

EXPERT SPECIALIST FITTING

Original Sash windows are fitted by our specialist, FENSA registered installers. Employed directly by Original Sash, they are all skilled at timber casement window installation.

The installation schedule is agreed in advance with the homeowner and our teams work quickly and tidily, ensuring your home’s security isn’t compromised during the day or overnight.

We are expert installers of Elizabethan, Georgian, and Victorian casement windows, specialising in bespoke designs and modern double glazing for enhanced energy efficiency and timeless charm.

CUSTOMERS

Original Sash is a family business with a customer focus and a reputation as leading timber window providers across London and the South East.

With over 30 years’ experience in window manufacturing and over 30,000 windows installed, we are proud of what our customers have to say about the quality of our windows and workmanship.