Thank you for your comments. We welcome all feedback. I am sorry you feel that you had problems with our aftercare. Initially you informed our engineer the reason you replaced your original boiler was because it was old and loosing pressure Boiler installation: Sept 11 2019. Upon completion our engineer spent time checking the boiler, radiators and all the exposed pipe work. When we install a boiler on an old system, we make it clear that we are not responsible or liable for the existing system. We check the existing pipe work where it is accessible. The next day our engineer returned and checked the boiler and pipework and found no leaks. He said there may be a small leak in the existing system. He topped up the system. He informed you if it goes down again there must be a leak on the existing system and further investigation will be needed. You contacted STG on 26/10/19 and he returned on 29/10/19. He repeated all checks and found no leaks. The engineer informed there must be a leak on the existing system which will need further investigation. This would involve taking off boxing and lifting flooring where possible. This could be a time consuming job, and would be chargeable in addition to the cost of the boiler installation. We understand your frustration in this matter but the engineer did re-attend and found no leaks. He had identified that the leak is on the existing system. This needs to be investigated and is outside of the specification given.