Slate Window Sills – Versatile, Durable and Stylish.

Slate window sills not only look fantastic, but are also practical too!

Our slate sills are fully calibrated so that installing them is as quick and easy as possible.

These Brazilian slate sills are great for indoors or outdoors. Not just ideal for window sills, you can use them for coping, capping, steps and edging too.

They are naturally produced and incredibly strong, making them a great choice for any home.

Available in dark grey 25mm – 40mm thickness and light grey in 25mm thickness.

We also have a quantity of purple slate sills available in 20 and 50mm which are an excellent match for Welsh Penrhyn slate.

We offer standard sills or customised to your requirements. You can have them cut to size, pencil edged and choose to have a drip groove.

Ideal for Window Sills, Coping, Capping, Signs, Steps and more!

Non-porous and incredibly dense, slate window sills are perfect for your home.

Looking for custom slate window sills? Fill out our form here to receive a fast quote.

Have you seen our Outdoor Slate Floor Project Packs? 3 sizes of tile make it easy to create the pattern of your choice and they offer great value for money!

Don’t forget to follow us on facebook for more ideas and offers!


Please note:- This product is natural stone, hand-split so you will find pattern and colour variations due to the way the slate is formed. This all adds to the beauty of the natural stone.