Got a problem with your boiler? Your route to success starts here discover our recognized degrees in business, it, construction and technology management. Bob the plumber charges by the job, not the hour, which saves you money know the price before we do the work! An excess is the amount you'll need to pay for each claim you make we'll ask you to pay this before we arrange for an engineer to visit. With a large pool of uk-based engineers to choose from, booking.