Windowline
Cover Cills and External Cills
Cover cills refresh an existing external sill. Standard, stubnose and platform cills replace it.



Key details
- End caps to match
- Liniar cills to order
Prices and stock on request. Tell us the sizes, colours and quantities you need.
Call 020 8665 1221 · page 31 of the Product Guide
Cover Cills and External Cills
Sizes and colours
A solid dot means we keep it in stock at the trade counter. A ring means we can order it in for you.
Cover cills
In stock To order| Width | White | Mahogany | Golden Oak / Sherwood |
|---|---|---|---|
| 240 × 3mm | In stock | To order | To order |
External cills
In stock To orderSwipe the table for more colours
| Size | White | Rosewood | Mahogany | Light Oak | Black | Brown | Grey | Caramel |
|---|---|---|---|---|---|---|---|---|
| 85 × 60mm | In stock | To order | To order | To order | Not available | To order | Not available | To order |
| 125 × 60mm | In stock | To order | To order | To order | Not available | To order | Not available | Not available |
| 150mm | In stock | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| 155 × 60mm | In stock | To order | To order | To order | In stock | To order | Not available | To order |
| 175mm | In stock | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| 180 × 60mm | In stock | To order | To order | To order | Not available | To order | Not available | To order |
| 185mm | To order | To order | Not available | To order | In stock | Not available | Not available | Not available |
| 200mm | In stock | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| 225 × 60mm | In stock | To order | To order | To order | Not available | Not available | To order | Not available |
| 250mm | In stock | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| 354mm | In stock | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
| 455mm | In stock | Not available | Not available | Not available | Not available | Not available | Not available | Not available |
More windowline

9mm Hockey Window Board
A cover board that fits straight over an existing window board or tiled sill.
Sizes and colours
9mm Bullnose Window Board
A rounded-edge replacement window board from Swish and Kestrel.
Sizes and colours
22mm Laminated Window Board
Our heaviest window board: a solid laminated board with a bullnose front edge.
Sizes and colours
Rigid, Flexi and Honeycomb Angles
Angles finish external corners, reveals and joints between surfaces.
Sizes and coloursNeed help choosing?
Our team knows the range inside out. Call, email, message us on WhatsApp or visit the trade counter.
