Leaking pipe in a poured concrete floor?!?!?!

[Tigali]

Bear with me on this one. My central heating is losing pressure to the extent that every day it goes to zero and I have to put it back to 1.5. A friend reckons i have a leaking pipe but I am in a new house with poured concrete floors so how am I supposed to a)find the leak and b)get it fixed? There also appears to be a damp smell in the hall for the last couple of days, would that be the leak?
I really don't want to have to smash up all the tiles we just had laid. Is the builder liable for all the repairs?
Thanks.

 

[baxpoti]

I am in a new house with poured concrete floors.

Then your not responsible for leaks, get the builders/plumbers to investigate.

 

[gas4you]

If brand new house with NHBC warranty then builders are basically responsible for nearly everything in the first 2 years. After that NHBC warranty kicks in for the last 8 on major problems. Call them back asap as if you keep topping up like this you only have fresh clean unprotected water in system with no inhibitor left to protect it!