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Pre-cast Concrete Sills

Architectural precast concrete windowsills form the lowest horizontal part of window openings and perform both structural and aesthetic functions. Windowsills provide the structural seating for window frames, which prevent water ingress. They are also sloped outwards to direct rainwater water away from the window frame. Ours come complete with water drip channels on their undersides, to prevent mortar erosion and staining of the outer leaf material.

All our sills are manufactured to a C50 mix / 50N/mm² strength and reinforced with high tensile steel: Minimum 500N/mm².

We can supply our sills in a variety of types and colours to suit your needs.

Sill Types

Although we do not have any standard sills, we have built up a collection of miscellaneous moulds from years of making bespoke sills for customers. If you would like to complete the form required, we will review our moulds to see if we can offer something similar to what you have requested, and price the mould bespoke if we cannot.


Bespoke Sills

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Sill Drawings

Enquiry form

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Order windowsills from Willowcrete Manufacturing Co. Ltd

For architectural pre-cast windowsills of the highest quality, contact us today. Our team, founded in 1950, is based in Washington, Tyne and Wear, UK.

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13 Tilley Rd, Crowther Ind Est, Washington NE38 0AE

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