Cast Stone Window Cills

Cast Stone Window Cills are a frequently used detail to add a high end, architectural look and feeling of quality to a facade.

Click Cast Stone stock two main types of cast stone window cills, stooled cills and slip cills.

Stooled Cills

Stooled cills have a stooling of approximately 102.5mm at each end of the window built into the wall.

Slip Cills

Slip cills sit between the reveals and are not built into the adjacent walls.

Both products add a decorative feature to all projects and are available in versions for traditional brick or rendered construction.

At Click Cast Stone, we have reviewed the most commonly used dimensions and we keep those products in stock so that we can deliver them to you when you need them. If our range of stock isn’t suitable for your upcoming project then please get in touch to discuss a bespoke solution. All of our Cast Stone is through coloured and expertly moulded by the highly skilled team of craftsmen at Forticrete. It is then vapour cured to ensure its quality, end to end.

For additional details on our cast stone window cills, please contact us on 01909 775 000, email caststone.orders@ibstock.co.uk or contact us using the contact form. Colour and finish samples can be ordered via the samples page.


Stooled Cills

150mm deep by 140mm high with 100mm deep stools, for use with brickwork finishes. Available in various lengths.

Stooled Cills for Render

175mm deep by 140mm high with a 125mm deep stools, for use with render finishes. Available in various lengths.

Slip Cills

150mm deep by 140mm high. Slip Cills are designed to fit between window reveals as opposed to being built into the wall.

Stooled Cill Components

Half pieces and individual pieces for use in repairs or replacements.

Stooled Cill for Render Components

Half Pieces and individual pieces for use in repairs or replacements.

Recent Case Studies

Kennedy Court Audley St Elphins Park

Kennedy Court


Forticrete masonry specified for luxury retirement village.

Blackpool College

Blackpool Sixth Form College


Forticretes decorative Cast Stone Ashlar blocks help to deliver a modern and stimulating finish.

Hadleywood Project

Hadleywood Home


Forticretes high performance cast stone solutions have been specified for the construction of a new, luxury five-bedroom home, in Hadleywood in Barnet.