I have an expensive decision to make and some additional viewpoints would be handy. I have a combination boiler (Ariston EuroCombi) which is about 4 1/2 years old. It started to leak from the valve at the base over Christmas and I had a plumbing company (not the guy who fitted it) come out and fix it. My neighbour repainted his kitchen and all was good.... until last night when they called to say there was water drippling down their wall again. The leak is in exactly the same place. The boiler itself still heats radiators and water without any problem - it just leaks from this valve at the bottom. I called the plumbers back who had a note on the account to say that if it happened again it was likely a problem with the expansion valve inside the boiler and that because of the model (they described it as the Lada of boilers), they wouldn't do an internal fix to it since from past experience, it tended to lead to more problems and it wouldn't be worth their guarantee to fix it. They suggested, unsurprisingly, a new Worcester Bosch or Valliant condensing boiler which with installation will cost £1900 + VAT They did say that I probably would be able to find someone to fix the old one but that I should be prepared to pay around £350+VAT but that I should be aware that since the boiler wasn't a great one to start with, that it might be the start of paying out a lot of cash over the next few years - particularly if I keep having to pay for my neighbour's kitchen to be replastered/painted. So, your thoughts on whether to bit the bullet and pay £1900 for a shiny new boiler (with a 5 yr free parts/labour guarantee) or try to find someone to fix the old one and take the risk that it might not fix the issue. There's a cynical part of me saying that any boiler should last longer than 5 years (I paid about £800 including installation then) and can't believe it's going to be uneconomical to repair already so is the other company spinning me a line?