Inspection and diagnosis identify the source of water ingress before corrective work begins. Many leaks originate from concealed membrane failure rather than visible tile damage.

The inspection process typically evaluates:

1) Membrane integrity

2) Drainage systems

3) Movement joints

4) Substrate cracks

5) Penetrations and flashing

Advanced moisture detection methods may be used to confirm leak pathways.
A structured assessment ensures repairs target the root cause rather than surface symptoms.