Operating at the source.
Celtic Slate & Stone is based at Llechwedd Slate Mines, Blaenau Ffestiniog — at the heart of Welsh slate country.
About Celtic Slate & Stone
Based at the source
Celtic Slate & Stone is based at the Llechwedd Slate Mines in Blaenau Ffestiniog, North Wales. The stone we sell comes direct from our quarry and the surrounding area of Snowdonia. It does not go through a wholesaler or third party before it gets to you.
Most online stone suppliers buy from a middleman. We do not. Being at source means we see the best material first, and the people selecting it know what they are looking at.
What we sell
We are a leading suppliers of top quality landscaping and garden stone. The products we sell include rockery stone, slate chippings, garden boulders, and pond edging and water feature stone. We are specialists in the products we sell, and have been supplying Welsh stone to customers throughout the UK for many years.
Most of our products are hand-selected; this ensures a consistently high standard across our stone product range.
Quality and customer service
The stone matters to us, and so does the experience of buying it. We aim to please every customer, every time, and this applies to all aspects of your order, from the quality of our products to our customer service.
We respond to enquiries quickly, we process orders quickly, and once your order is placed, we keep you informed through to delivery. Get in touch any time.
Our 5 star Google and Trustpilot reviews are proof that we do get it right!
Delivery across the UK
Everything is delivered nationwide by pallet. Our website prices are inclusive of delivery to most mainland England and Wales postcodes. A supplement applies to inner London and mainland Scotland, shown at checkout before you pay. You choose your delivery date in your basket and the first available date is usually four working days from your order.
Delivery is by a large lorry with a tail lift and pallet pump truck. Please see our delivery information page for full details on access requirements, surcharges, and choosing a delivery date.
Welsh slate, 450 million years old
Our core product, Welsh slate, has been forming in the mountains of Snowdonia for over 450 million years. It is one of the most durable natural landscaping materials you can buy in the UK, and customers come back to it regularly.
It is frost resistant, non-toxic to fish and pond life, and improves with age. The grey and rustic tones run throughout every piece and deepen when wet.
We supply Welsh slate for garden and landscaping use across the UK.
What our customers say
Trusted by trade and homeowners
★★★★★ 5.0 · Every review verified
Excellent service — delivery was very quick, and the quality and sizes of the slate were far superior to those of local garden centres. I would not hesitate to recommend Celtic Slate & Stone. A great supplier of natural British stone.
Very good quality stone, exactly as described on the website and nice big pieces, much better value than buying from the garden centre. Delivery was quick and exactly on schedule too. Thanks Steffan!
So pleased to have found Steffan at Celtic Slate & Stone — the only place willing to supply a smaller amount of rocks at a very fair price. Very helpful communication and a lovely selection of sizes. Very recommended.
We couldn't be more delighted with the flat pond edging stones we bought. They make the perfect lawn-to-border divide and surround to our pond project. They slot together in a suitably random but organised manner. We couldn't have asked for anything better.
Celtic Slate and Stone delivered an excellent product, amazing customer service and exactly what was promised. Steffan must have hand-picked many of the pieces of slate for my project. Unbelievable value for money.
Great product and service. I ordered a bulk bag of slate chippings for my garden. Lovely product, solid chunks of slate, unlike the flimsy small chips I've seen in neighbours' gardens. Delivered within a week.