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.
Berriedale
Berriedale is a small estate village on the north east shore of Caithness, Scotland, on the A9 roadway in between Helmsdale and also Lybster, near to the boundary between Caithness and also Sutherland. It is protected from the North Sea. The town has a parish church in the Church of Scotland. Just south of Berriedale, en route to the north, the A9 passes the Berriedale Braes, a steep drop in the landscape (brae is a Scots word for hillside, a borrowing of the Scottish Gaelic bràighe). The road falls outstanding (13% over 1,3 kilometres) to bridge a river, before climbing again (13% over 1,3 kilometres), with a variety of sharp bends in the road-- although some of the hairpin bends and other close-by slopes have actually been eased in recent times. The impracticality (and also cost) of linking the Berriedale Braes stopped the structure of the Inverness-Wick Far North Line along the eastern coast of Caithness; rather the train runs inland via the Flow Country. Berriedale is located at the end of the 8th phase of the seaside John o' Groats Trail.