At Timbawood we specialise in the finest single and double glazed Georgian windows.

As specialists in sash windows and casement windows for period, conservation and listed properties – particularly Edwardian, Georgian and Victorian sash windows – each window is handmade to measure at our West London workshops, matching existing details to preserve the original character of your home.

Offering a wide range of the finest timbers, glazing and hardware, we ensure your new Georgian windows provide you with the highest thermal, acoustic and security benefits, while staying true to elegant Georgian design.

While designs became more varied later in the Georgian era, Georgian sash windows and buildings are marked by their uniformity and classic, understated details.

At Timbawood we are passionate about preserving Georgian architecture, with high quality, exact-match timber windows which stay faithful to the original design of the windows.

With our Georgian sash windows and casement windows you can always expect:

  • Choice of the finest stable timbers including Accoya, Sapele and Oak
  • Specialist glazing options including acoustic glass, laminated security glass, restoration glass and slimline double glazing that looks just like single glazing
  • Elegant, slim profiles, horns and mouldings to match your existing windows
  • High quality hardware – High security fasteners, locks and restrictors 
  • Full factory spray finish with high performance microporous paint
  • Full perimeter draught proofing
  • Full design, supply and install service

Call us on 0208 893 4889 to arrange a free survey, quotation, or to visit our workshops and showroom to see the quality of our single and double glazed Georgian windows being made for yourself. We work throughout London, Surrey, Middlesex and beyond.



Georgian sash windows are often either listed or in a conservation area. Our Georgian windows have been approved for listed and conservation properties by planning authorities throughout London and the South East.

What is a Georgian window?

Georgian windows are a key part of Georgian architecture, which spans the period 1714 – 1837, covering the reign of George I through to George IV. Georgian architecture is one of the most popular styles of architecture in Britain, typified by elegant, uniform proportions on the exterior, and high ceilings with plenty of space and light coming through the large sash windows in the interior. 

Sash windows are the most common type of Georgian window, which like Georgian buildings are characterised by their symmetry and their understated elegance and proportions.

From the 1740s, Gothic Revival architecture started to emerge and became more popular in the late Georgian period from the 1820s, typified by arched sash windows and casement windows, and more decoration. Windows were often filled with delicate arched glazing bars and leaded lights.

Georgian windows would have been made of timber, typically made in Oak or Redwoods such as Douglas Fir or Pitch Pine.

What do Georgian windows look like?

The proportions of Georgian sash windows are typically based on squares, both in terms of the shape of the windows and the spacing between windows and floors.

It wasn’t possible to manufacture large panes of glass in the Georgian era so windows were typically made of several smaller panes in a grid of solid timber glazing bars. In keeping with the understated elegance of the buildings, glazing bars and frames were thinner than they would become in the Victorian era. 

The classic Georgian window is the ‘6 over 6’ sash window, with six panes of glass in each sash joined together in a grid of glazing bars.

Can you add bars to Georgian windows?

Grids of glazing bars are a very typical feature, both of wooden Georgian casement windows and sash windows. Individual panes of mouth-blown glass would have been fixed in place to the grid of glazing bars with putty. 

In modern times, Georgian windows are sometimes replicated with ‘applied bars’ which are stuck on to the surface of one larger pane glass, to give the illusion of a grid of smaller panes of glass.

Some window manufacturers, like Timbawood, still make replica Georgian windows with small individual panes of glass joined together with solid glazing bars, as they would have originally been made. This style of manufacturing is often a requirement for listed and conservation properties, where local Conservation Officers are keen to preserve the most authentic look possible. 

At Timbawood we offer a range of glazing options including individually glazed single or slimline double glazed units, with the option to include restoration glass, which has the authentic variable reflection of the original heritage glass. 

Get in touch to speak to one our experts about the options available for your Georgian sash windows.

Call us for our latest offers:

0208 893 4889

To arrange a free survey or quotation, please get in touch:

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