Disclaimer Privacy Policy Terms and Conditions. Stone Cills Overview and Specification Availability, usually just 2 to 4 working days from payment Window sills above mm length cast in 2 pieces with central joint Bespoke lengths can be manufactured with lead time approx 4 weeks Slip CillsBay Window Cills and Render Cills also available Option for ex-stock collection from ST3 5BL on Commercial Vehicles; or Nationwide delivery can be arranged at additional cost Suitable for timber frame or conventional brick and block construction Cast Stone Cills manufactured with through coloured cast stone mix, sometimes referred to as reconstituted or high grade precast concrete Stock Architectural Dressings supplied in Bathstone buff colour Additional cill colours produced on Made to Order basis Reproduction of cill colour is as close as is possible within the limits of photographic technology. Similar to Slip Cills, but with no upstand on the back edge. The purpose of the stooling is to give a flat level surface for the brickwork to sit on. See the further information window cills. Slip cills have no stooling. String Course More Stock Our two main types of cast stone cill are known as stooled cills and slip cills.
Heads and Cills Construction
Cast Stone sills (or cills) for windows and doors are available in either in cast stone Window Surrounds Door Surrounds, Keystones & Heads & Lintels. Forticrete offer a range of concrete cast stone cills and window surrounds. View our gallery and request a brochure to learn more.
We have a huge range of moulds for heads & cills to fit windows and doors of all sizes. More importantly, we specialise in producing custom.
Choices of window cill Stooled cills Stooled cills are used when the wall is brickwork or when side jambs are being used, such as in traditional mullion window surrounds.
The purpose of the stooling is to give a flat level surface for the brickwork to sit on. A drip groove is cast in as standard.
Video: Stone window heads and cills Attempting Concrete sills 2 and 3
Slip Cills Slip cills have no stooling. The window frame itself can have an effect on which type of cill should be used, but the majority of frames may be used with either slip or stooled cills. See the further information window cills.
Heads are the top stone section of a window surround and cills are the bottom section. Mullions are the vertical stone sections that separate two window units. Heads are the top section of a masonry opening such as a window and doors and cills are the bottom section.
Stone Cills, Stooled Precast Stone Window Sills Addstone
These stone items can be made from multiple.
Choices of window cill Stooled cills Stooled cills are used when the wall is brickwork or when side jambs are being used, such as in traditional mullion window surrounds. Stooled cills are used when the wall is brickwork or when side jambs are being used, such as in traditional mullion window surrounds. These can be used if the window frame fixing method doen't need the upstand. Thorverton Stone window cills may be used with most types of frame, but should you have a special requirement, just let us know and we will be happy to help.
String Course More Stock
![]() Stone window heads and cills |
Check Stock Availability. If you require no brick seatings at the cill ends you probably require our stock Slip Cills ; and yes, we also stock the 90 degree and 45 degree corner units to create Bay Window Cills.
Disclaimer Privacy Policy Terms and Conditions. If there were no stooling, a large unsightly joint would be required to accommodate for the slope on the cill. ![]() No need to plan weeks or months ahead. To obtain overall stone lengths, simply add total of mm to your Brickwork opening. |

Please allow. Cast Stone window cills or sills are manufactured to fit with your brick work or to any size you require. They are used for all types of window.

Stone Cills, Stooled Precast Stone Window Sills now in Stock. together with our matching Stock Window Heads and Stone Quoins by Professional Builders.
Stooled Cill Dimensions.
Cast Stone Window Cills
The slip cill will project approximately 50mm from the front of the wall and incorporates a drip groove as standard. Stooled cills are used when the wall is brickwork or when side jambs are being used, such as in traditional mullion window surrounds. Thorverton Stone window cills may be used with most types of frame, but should you have a special requirement, just let us know and we will be happy to help. This cill may be made to sit flush with the wall or, more usually, have an overhang of approximately 50mm.
Cast Stone Window cills and brackets Haddonstone
These can be used if the window frame fixing method doen't need the upstand.
They can be made to be built into the wall as it is constructed, or to fit into a gap left especially for them.
Window Cills Our window cills, or sills, come in two main types.