The sequence of overflow helps locate the problem
Tell the provider which fixture first showed symptoms and whether overflow occurs only when the property uses water. If neighbouring premises are also affected, mention that without assuming the fault’s ownership or location. Private and shared network issues need to be distinguished through assessment.
A gully or low floor waste can show a problem originating elsewhere in the line. Photograph only from a safe position and identify access restrictions. The person attending may need building-manager coordination or information about drainage serving more than one dwelling.
Plumbing







Blocked drains
Hot water repairs

Water leak detection
Toilet repairs


Gas leak investigation
General plumbing


