Can you match an unusual curve?

Each arched window is made to the curve of the opening rather than a standard radius. We measure the head carefully at survey and confirm the shape with you before anything is ordered.

Can arched sashes have glazing bars?

Yes. Bars can be carried up into the arch, and horns, deep bottom rails and every colour are available just as on a square-headed sash.

Do arched windows cost more?

Shaped frames take more work to make, so an arched sash costs more than a square one of the same size. Every window is priced individually in your fixed written quotation.

Arched sliding sash windows with glazing bars set into a red brick elevation

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Arched Sash Windows

Arched Sash Windows, Made to the Curve

Swept, true and gothic heads, made to follow the shape of your opening so the arch sits properly under the lintel.

Arrange a free survey or call 01865 416496

Made to Measure
A+ Energy Rated
PAS 24 Security
Directly Employed Installers
20 Year Guarantee

Three Arch Styles

Find the shape of your window.

An arched opening that has been squared off, or fitted with a flat window and a filled-in head, changes the whole character of the elevation. We make the sash to the arch.

Swept head

A gentle, shallow curve across the head, common under stone and brick lintels on cottages, lodges and Victorian terraces.

True arch

A full semicircular head, popular on Georgian stair windows and Victorian feature windows.

Gothic arch

A pointed head for Gothic Revival houses, estate lodges, school houses and chapel conversions.

Round-headed white sliding sash window set into a stone surround

How They Work

A fixed arch, a sliding sash.

The arched upper sash is normally fixed, which keeps the curved frame rigid and sealed. The lower sash slides up behind it for fresh air and tilts into the room for cleaning, exactly like a square-headed sash.

Everything else is the same as the rest of the range: A+ energy rating, toughened glass, key-locking cam locks, hidden trickle vents and the full choice of colours, bars and heritage details.

Gallery

Arched sashes, inside and out.

Photographs show the sash range we install, on homes across the UK. For our own work, see our recent projects.

Sliding Sash Windows

Explore sliding sash windows.

Close-up of a timber-look straight joint on a white sash corner

Heritage Details

Timber-look joints, a deep bottom rail and run-through horns.

Tall white Georgian-barred sash window framed by climbing plants

Georgian & Astragal Bars

Which glazing pattern belongs on which house.

Sash Bay Windows

Splayed and box bays in three and five parts.

Chartwell Green sliding sash windows in a painted corner bay

Colours & Hardware

Thirteen finishes, any colour sprayed to order, and eight hardware finishes.

Stone terraced house with white sliding sash windows

Conservation Areas

What planners look for, and how we help you prepare.

Sliding sash windows overview

FAQs

Arched sash windows: your questions answered.

Yes. On an arched sash the upper sash, which carries the curve, is normally fixed for strength and thermal performance, and the lower sash slides. A sliding upper sash may be possible on some openings; ask us at survey.

Free Home Survey

Book Your Free Sash Window Survey

We'll look at your existing windows, measure every opening individually, bring real colour, glass and hardware samples, and give you a fixed written quotation with no pressure.

Free, no-obligation home survey
Every opening measured individually
Fixed written quotation
Directly employed installers

Prefer to talk? Call 01865 416496

Free Home Survey

Book Your Free Sash Window Survey

Share a few details and a member of our team will be in touch within one working day. No pressure, no pushy sales.