The basic idea to keep in mind is: is this something i can do myself? if you don't have the expertise in plumbing, you should probably consider hiring a plumber it will save you a lot of time, money and additional work, even if the cost seems high. Strysen heating ltd, registered in england & wales no 8130178 registered office: century house, 31 gate lane, sutton coldfield, west midlands, b73 5tr. If we can’t fix your boiler we will refund any labour costs from the cost of a new boiler. Belong.