Homes and properties relying on tank water need clean, well-maintained storage to keep that water safe to use. Over time, sediment, algae and organic build-up settle inside the tank, gradually affecting water quality even when the tank looks fine from the outside. Left unaddressed, this build-up can go unnoticed for years, quietly affecting everything the tank supplies.
Our water tank cleaning and treatment service removes sediment, algae and organic build-up from tank interiors and exteriors, helping protect water quality for households and properties relying on tank water. It’s a practical service for any property that depends on stored water rather than mains supply.
Stored water behaves differently to mains supply, and without regular care, that difference shows.
walkways and entrances collect grime faster with constant use, becoming a first impression risk.
light and moisture inside or around the tank create conditions for algae to establish.
because tanks are rarely inspected internally, build-up often goes unnoticed until it's significant.
Left untreated, this build-up doesn’t just sit at the bottom of the tank — it steadily works its way into the water the property depends on.
Rather than a surface-level clean, we treat tank care as a two-part process covering the whole system.
We check the tank’s interior condition and exterior surfaces, identifying sediment, algae and any areas needing extra attention.
We remove built-up sediment and organic growth from inside the tank and treat the exterior, helping protect water quality going forward.
removes the build-up that quietly affects the water your property relies on.
practical for both household tank systems and larger rural storage.
a full interior and exterior clean, not a quick external rinse.
a fully insured team experienced in tank cleaning and treatment.
Yes — we can advise on the right process to minimise disruption to your water supply during cleaning.
Signs include discoloured water, sediment when the tank is low, or simply not knowing the last time it was checked — we can assess this as part of your free quote.
Yes. Our service covers sediment and organic build-up inside the tank as well as the exterior surface.
This depends on tank use, exposure and water source — we can recommend a suitable schedule as part of your assessment.
Yes — tank cleaning is a practical pairing with roof treatment or other property care visits, particularly on rural properties.
We are committed to delivering exceptional roof cleaning services that protect your property and enhance its appearance.
The Moss Crew, started out treating roofs across Hawke’s Bay and has since grown to service the North Island, from Hawke’s Bay up to Auckland.
© 2026 Allrights Reserved The Moss Crew. Design & Developed by Triveni Infosoft.