Roofers in Gwynedd
Trusted Roofers in Caernarfon
Caernarfon's roofscape runs from the medieval walled town by the castle out to the modern housing around Coed Helen and Bontnewydd. We work on all of it — from listed properties within the town walls to storm-damage callouts on the harbour front.
Local knowledge
We know Caernarfon's roofs — because we work on them every week.
The old town has narrow terraces with original slate and lead detailing — often listed. Outside the walls you'll find larger stone villas, 1930s semis, and a lot of newer housing needing repair after Irish Sea weather.
Work we do most often in Caernarfon
- Listed-building slate work in the walled town
- Lead valley and flashing repairs on stone villas
- Skylight installation on Twthill extensions
- Full re-roofs on 1930s semis in Coed Helen
Areas of Caernarfon we cover
Including Caernarfon Castle, Twthill, Coed Helen, Bontnewydd, The Anglesey Hotel — plus every street in between. If it's got a roof and it's in the LL55 area, we'll come and quote it.
Vetted for public sector as well as private homes.
Consistently rated across North Wales.
20 mins from our Bethesda yard.
"Three quotes, Sion wasn't the cheapest but by miles the most honest. Twenty-year guarantee sealed it. Delighted with the finish."
Services in Caernarfon
Every roofing service, delivered locally.
Ready for an honest quote on your Caernarfon roof?
Call 01248 848 116 or use the form above. We reply to every enquiry within one working day.