England's Last Working Slate Mine

England’s last working slate mine in the heart of the Lake District. Our business is at the top of Honister Pass – one of the steepest roads in the country where we source our slate from deep inside a neighbouring mountain, Fleetwith Pike. Formerly the Buttermere and Westmorland Green Slate Company Ltd.

Slate has been mined here at Honister Slate Mine for centuries…from occupying Romans to ancient Monks and Victorian pioneers. Working 11 miles of underground tunnels, we preserve an expertise and appreciation for Honister Green Slate, using ancient techniques to make truly unique contemporary products.

Why Choose Honister Green Slate?

Because Honister Green Slate is all about quality, durability, and skilled craftsmanship. Our products are renowned for their longevity as well as their aesthetics. Buy Honister Green Slate and you are buying an authentic slice of the Lake District from England’s last working slate mine.

Our time-served craftsmen make bespoke green slate products to your exact specifications. Each piece – from polish, design and delivery is given the utmost care and attention – you are too.

Slate That's Fit for a Queen​

Honister’s Westmorland roofing slate is one of the most prestigious products in the building industry. It has appeared on significant buildings such as Buckingham Palace, New Scotland Yard, RAF Cranwell in Lincolnshire, and many other landmark properties. It can be found on schools in the Scottish capital of Edinburgh, to rural churches in Devon as well as many Lake District hotels and businesses. Its quality and durability adds real value to your property and means that unlike many cheaper alternatives, it does not require replacing every 30 years. So convinced are we of its longevity – it comes with a 300 year guarantee.