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Welsh Slate is one of the world’s leading supplier of high-quality slate for a peerless range of exterior and interior design applications. Uniquely 500 million years old, the material is widely recognised as the finest natural slate in the world.

The inherent beauty and qualities of slate have resulted in its specification and use by architects, interior designers, developers and contractors for roofing, cladding, flooring, paving, walling, sills and copings, landscaping, aggregates, fire surrounds and hearths, worktops and counters, and sawn scants.

The company’s Penrhyn Quarry has been the centre for UK natural stone and its heritage since the 13th Century and a major operation for more than 400 years.

In recent decades new sources of roofing slate have been imported into the UK from all over the world but none has come even close to matching the appearance and performance of Welsh slate. Indeed Welsh Slate has been exporting to the known world since shipping began and its export markets continue to grow.
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Product catalogue
A taster of Welsh Slate's wide range of aggregate products for precast and ready-mixed concre...
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Product catalogue
Available in a variety of exquisite colours, Welsh Slate possesses naturally occurring veining an...
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Product catalogue
Welsh slate benefits from a number of highly practical properties that make it an exceptional roo...
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Slate Flooring Cwt-Y-Bugail Natural Slate
Natural slate flooring.
- M40 Stone/ Concrete/ Quarry/ Ceramic tiling/ Mosaic
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Slate Flooring Penrhyn Natural Slate
Natural slate flooring.
- M40 Stone/ Concrete/ Quarry/ Ceramic tiling/ Mosaic
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Slate Paving Cwt-Y-Bugail Natural Slate
Natural slate paving.
- Q25 Slab/ brick/ sett/ cobble pavings

Image gallery

Byland Court, Durham
Coal Drops Yard, King's Cross, London
Decorative Aggregates
German Gymnasium, Kings Cross
ME London Hotel
Newcastle University student accommodation

Quality Assurance

Welsh Slate Ltd is certified to the following Quality Assurance schemes/standards:
BS EN ISO 9001: 2008 – BSI
BS EN 12326-1: 2004 BS EN 12326-1:2004

Trade names

Welsh Slate

Contact details

Penrhyn Quarry,
Gwynedd, LL57 4YG
Tel +44 (0)1248 600656
Fax +44 (0)1248 601171