Plaster Keystones

William Wilson Architectural Mouldings Ltd can design, reproduce or restore Plaster Keystones from any period, no matter how ornate and whatever the size.

We also stock a range of in-house produced Plaster Keystones, some of which are displayed below.

Keystones Gallery

Please click on a photo to view a larger image:

What are Keystones?

A keystone is the central wedge-shaped stone at the summit or apex of an arch or vault. During construction, it is the final piece to be placed which effectively locks all the other stones into position and allows the arch to bear weight.

Often used for decorative or ornamental effect, plaster keystones are used to give the appearance of more costly masonry keystones.

Fitting or Supply Only

We offer a full fitting service for all of our plaster mouldings. Alternatively, they can be delivered or collected for supply only to allow for trade or DIY fitting.

Note, plaster cornices (coving), panel mouldings and dado rails are supplied in fixed lengths.

Call for a Quote

To enquire about our services, please call or get in touch:

Throughout the North West

From our Workshop in Fleetwood in Lancashire, William Wilson Architectural Mouldings Ltd have good links to the motorway network and operate throughout the North West of England.

We can supply, fit and restore plaster keystones to homes, businesses and historic buildings in: Accrington, Barrow, Blackburn, Blackpool, Bolton, Burnley, Bury, Carlisle, Chester, Chorley, Cumbria, Fleetwood, Garstang, Kendal, Lancaster, Leyland, Lytham St Annes, Morecambe, Oldham, Poulton-le-Fylde, Preston, Skelmersdale, Southport, Thornton-Cleveleys, Ulverston, Warrington, Widnes, Wigan, Wilmslow, Windermere, Wirral, and more!