The pressure in my central heating keeps dropping and there is no visible leak in the ceilings and no over-spill from the boiler overflow. However, quite a bit of water has disappeared from the central heating system. The system is quite old and some of the pipes go under the floor and in part, under concrete. So I am looking for a cost effective way to find out if the leak is under the floor. I have heard Thermal Imaging can detect this quite quickly. I am in something of a hurry as, right now, I am without central heating.
