Slip sit inside the window opening and are usually used when the wall is to be rendered, with the render coming right down to the cill. They can be made to be built into the wall as it is constructed, or to fit into a gap left especially for them. The slip cill will project approximately 50mm from the front of the wall and incorporates a drip groove as standard.

2100mm Slip Cill (Sill) 8"x3" Concrete Grey

  • We offer free local delivery in Carlisle and surrounding areas.


    If you would like to know if we deliver to your area please give us a ring on 01228 525104.


    If you have any special requirments for your delivery please let us know and we will try our very best to help. 

  • We are always looking at ways to give you the lowest possible prices, so it's best to call us and we can give you our latest, most up to date price on any of our products!


    Call us now: 01228 525104


Who we are

Cumbria Building Supplies ltd

Unit 6

Marconi Road

Burgh Road Industrial Estate




VAT no: 734 7881 00

Reg no: 401 0956


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