Mexboro manufactures a wide range of precast and cast stone window cills.
- Versions are available for timber, UPVC or metal window frames
- Available in certain lengths according to section to avoid cracking due to handling or building movement
- Greater lengths can be achieved by jointing the sectionalised units
- To avoid contrasts the same colour mortar should be used in the bed joints as in the manufacture
- It is good building practice to provide a horizontal dpc turned vertically upwards to cover the interior side of the cill as far as the window board and/or cavity tray, with stop ends where applicable, for the full length and width of the cill bed.
- Cills can be supplied as straight sections without stooled ends – please specify.
- Cills can be supplied with different width stooled ends – please specify.
- Bespoke cills can be manufactured to suit individual requirements.
- A wide variety of finishes available – from standard grey ex-stock to cast stone, acid-etch and exposed aggregate (see below)
Precast Concrete Standard Cill Units
150mm wide

Precast Window Cill 150mm
200mm wide

Precast Window Cill 200mm
Mexboro’s precast window cills are available from stock in standard plain grey colour.
The following precast colours are manufactured to order. Please talk to our Sales Department for further details.

Precast Colour Chart
Cast Stone Standard Cill Units
150mm wide

Cast Stone Window Cills 150mm
175mm Wide

- Cast stone window cills 175mm

200mm wide
215mm wide

Cast Stone Window Cills 215mm
Cill Brackets

Cast Stone Cill Brackets
A wide range of cast stone cill units available in any of our range of colours (as shown below):
Bespoke colours and lengths available on request
- Cast Stone Colour Chart
For further information please download our brochure: