About us
The Welsh Slate Specialists — grounded in Bethesda.
A settled team of craftsmen with 25 years of experience, working the length and breadth of North Wales. Traditional skill, modern standards, honest pricing.
Sion Owens Roofing is the trading name of Sion Owens Roofing Limited (Company No. 15048317), established in 2019 and based in Bethesda in the shadow of the Penrhyn slate quarries. We're your local solution for roofing across North Wales, Mid Wales and Cheshire — from single-slate repairs to full re-roofs on listed buildings.
Since day one we've been CHAS accredited, entrusted by local councils to deliver large public sector contracts while never losing our attention to detail on private homes. When it comes to heritage buildings, we source direct from Penrhyn Quarry and Blaenau Ffestiniog so the roof matches the building's original character.
We guarantee every material we use is the best quality possible, and every fix is finished to the highest standard — so much so, we offer up to a 20-year workmanship guarantee on all work carried out.