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.
Calstock
Calstock is a civil parish as well as a large village in south east Cornwall, England, UK, on the border with Devon. The village is positioned on the River Tamar 6 miles (9.7 kilometres) southern west of Tavistock and 10 miles (16 kilometres) north of Plymouth. The parish had a population of 6,095 in the 2001 census. This had boosted to 6,431 at the 2011 census. The parish incorporates 5,760 acres (23.3 km2) of land, 70 acres (0.28 km2) of water, and also 44 acres (0.18 km2) of the tidal Tamar. Ashburton Hotel and also Danescombe Quay forgeting the River Tamar Along with Calstock, various other settlements in the church include Albaston, Chilsworthy, Gunnislake, Harrowbarrow, Latchley, Metherell, Coxpark, Dimson, Drakewalls, Norris Green, Rising Sun and St Ann's Chapel. Calstock town is within the Tamar Valley AONB, is ignored by Cotehele home and yards, and lies on the scenic Tamar Valley railway. Calstock train station opened up on 2 March 1908. The town is twinned with Saint-Thuriau in Brittany, France.