We service all of your residential plumbing needs! Subject to a satisfactory inspection of the existing heating system. Puppers | stack brewing - only place in town! A engineer will charge £ on average for a new water pump, £ for diverter valves, and £ for both a pressure relief valve and new ignition system. Great service, fast and efficient!! highly recommended!! With commercial work, darren says half the work is actually getting to the source of the problem. Learn a new word every.