Check out our tool selection guide or chat with a drain brain! A replacement boilers vary depending on the make, model and company installing the boiler will typically cost around £,, with labour costs on top of this. We are fully trained to handle any job you’ve got- put the duct tape down and call us! Contains no phosphate, a potential cause for harm to rivers and lakes. The coke/pepsi idea is fantastic! i don't like either anyway, and.