Many property owners in Dubai are surprised to learn that water tank cleaning is not optional maintenance, it is a legal requirement enforced by Dubai Municipality.
The Six-Month Rule
Dubai Municipality requires all residential water tanks, whether in a villa, apartment tower, or commercial building, to be professionally cleaned and disinfected at least once every six months. High-risk premises including schools, hospitals, and food and beverage establishments face a stricter quarterly requirement.
Where DEWA’s Responsibility Ends
DEWA supplies clean, treated water, but its responsibility ends at the building’s main inlet. Everything that happens after that point, including whatever accumulates inside your storage tank, is the property owner’s responsibility.
What Happens Without Regular Cleaning
Biofilm, a bacterial layer that can harbor pathogens, begins forming within days in untreated water. Sediment accumulation accelerates in Dubai’s heat and dust conditions faster than in more temperate climates.
Compliance Matters
Non-compliance can result in fines, and in serious cases Dubai Municipality can restrict water supply until compliance is restored. Documentation of your cleaning history is often requested during routine inspections.
Professional water tank cleaning includes complete drainage, thorough scrubbing, disinfection with approved chemicals, and a water quality test, giving you the compliance record you need on file.