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.
Isle Of Barra
Barra is an island in the Outer Hebrides, Scotland, and also the second southernmost occupied island there, after the adjacent island of Vatersay to which it is linked by a short causeway. The island is called for Saint Finbarr of Cork. In 2011, the population was 1,174. Gaelic is extensively spoken, and also at the 2011 Census, there were 761 Gaelic audio speakers (62% of the population). The Isle of Barra is approximately 60 km2 (23 sq mi) in area, 11 miles (18 kilometres) long and 6 miles (10 kilometres) vast. A single-track roadway, the A888, runs around the coast of the southern part of the island adhering to the flattest land and offering the many seaside negotiations. The inside of the island below is hilly and also uninhabited. The west as well as north of the island has white sandy coastlines consisting of sand developed from marine shells adjacent the grassed machair, while the south eastern side has numerous rocky inlets. To the north a sandy pensinsula runs to the beach airport as well as Eoligarry.