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Window Cills

At The Window Store we strive to provide for all your plastic building product requirements, which is why we offer an extensive range of cills and internal window sill board. Put the perfect finishing touch to every job by choosing from our extensive sill collection including a range of sizes, colours and materials.

Our window sill sizes include 85mm, 125mm, 155mm, 180mm and 225mm with the appropriate end caps and add ons to finish off every job. We now also offer an Eco sill which is made from recycled material and skinned to ensure a first class finish. All our window sill sizes come in a choice of White, Mahogany, Rosewood, Light Oak and Black so they can complement any property.

Window sill & board

  • External PVC-U window cills
  • Sizes ranging from 85mm to 255mm
  • Sustainable Eco Cill option
  • Internal window board range
  • Quick and simple to install
  • Choice of colours and sizes
  • Also supply skirting, dado rails and architrave
Windowstore Cills

Internal window board

Our range of Kayboard laminated internal window boards offer a high quality solution that looks as good as timber, but last much longer and cost less! It is moisture and heat resistant and available in seven sizes and four colour finishes enabling you to get the perfect product for every application.

As well as cills and window board we also offer a range of skirting, dado rails and architrave so you can put the finishing touches to every project. To find out more contact your local branch.



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The Window Store is a trading name of Specialist Building Products Limited, a wholly owned subsidiary of the Epwin Group Plc. Specialist Building Products Limited is registered in England & Wales, Company Registration number: 1268689, Registered Office: 1B Stratford Court, Cranmore Boulevard, Solihull, B90 4QT, VAT Registration No. 864 4507 10