This will depend on the issue. However, many plumbers are also Gas Safe Registered, meaning they can undertake work on all aspects of boilers and central heating systems. It's best to look out for plumbers that display the badge of your boiler on their literature.
Dolwyddelan
Dolwyddelan is a town and neighborhood in Conwy region borough, north Wales, on the major A470 road between Blaenau Ffestiniog and Betws-y-Coed. As a community, the population of Dolwyddelan was recorded in the 2001 Census as 427, and also 55.8% of those citizens could speak Welsh. A slight population increase to 474 was recorded in the 2011 census with the percentage of Welsh speakers being up to 50.8%. Neighboring mountains consist of Moel Siabod to the north, Moel Penamnen and also Y Ro Wen to the south and also, more afield, Snowdon (Yr Wyddfa) exists around 10 miles to the west. Carreg Alltrem, a crag made use of by many climber, can be discovered regarding a mile south of the village. Dolwyddelan is included in the Betws-y-Coed selecting ward which is represented by a region councillor on Conwy County Borough Council.