It's the start of mini mse's half term in order to be the best daddy possible, im stopping work and going off line? The cost of installing a new boiler can range from £, to more than £,. The latest the plumbing daily! In this scenario there are a lot of additional works to remove the hot water cylinder and re-direct the hot water pipes to the new combi boiler location. The advance combi boiler has been designed with efficiency and reliability at the forefront of our minds.