Georgian Timber Sash Window on Hidden Springs

This is a Georgian timber sash window on springs: a sliding sash with a full grid of astragal bars giving six panes in each sash – the 6 over 6 pattern of Georgian houses – balanced by spiral springs hidden in the frame instead of cords and weights. You get the period look in a slimmer frame that suits shallower reveals, new builds and extensions. It is made to your measurements and delivered fully finished across the UK, from £699+VAT.

The 6 over 6 grid in a slimmer frame

Slim timber bars run across and down each sash, three panes wide and two high, over a sealed double-glazed unit. Because the frame has no weight boxes, its sightlines are narrower than a box sash, which helps where the wall is shallow or you want more glass in the opening. For bar patterns and proportions in more depth, read our Georgian sash windows guide.

Springs or weights for a Georgian house?

Spiral springs hidden in each side of the frame hold the sashes steady at any height, with no cords or pulleys involved. Weights remain the historically correct mechanism, so if the house is listed or in a conservation area and a traditional box frame is expected, the Georgian timber box sash window on weights carries the same bar grid. Pine and meranti frames are engineered, laminated so they stay straight; oak frames are solid European oak.

Specification

Getting a price

Size, timber, glazing and colour set the final figure. Send us your measurements, or drawings if you have them, and we will come back with a detailed quote within 48 hours. Manufacture starts with a 50% deposit, the balance is due on delivery, and your own installer fits the windows. See timber window prices for typical budgets across our range.

Frequently asked questions

What makes a sash window Georgian?

The bar grid. A Georgian sash is divided into small panes – most often six per sash – rather than one sheet of glass. Here the bars are slim timber over modern sealed glazing, so the period look comes with current thermal performance.

How is it different from the Georgian sash on weights?

From outside they look very similar. The weights version has a deeper box frame with cords, pulleys and counterweights; this one uses concealed springs in a slimmer frame. This window starts from £699+VAT and the weights version from £649+VAT.

Can I use a spring sash in a listed building?

That is down to your local planning authority, and many expect a traditional box sash on weights, so check before you order. We make windows to the drawings and specification you have had approved, including single glazing where it is required. Our page on replacement timber windows for listed buildings explains the usual requirements.

How long does it take?

Around 20 working days from your deposit, then the windows are delivered fully finished anywhere in the UK.