Professional Water Tank Cleaning Services

What professional water tank cleaning actually involves

"Tank cleaning" can mean very different things. At one end, someone climbs in with a brush, scrubs the walls and drains the dirty water through your outlet pipe — straight into your plumbing. At the other, the tank is emptied, the settled sludge is physically removed, every surface is scrubbed and washed, the tank is disinfected and rinsed, and you get photographic proof of the result. CHKACHK does the second, every time, regardless of tank size.

A professional service matters because the problem inside a storage tank isn't just visible dirt. Water entering a tank carries fine sediment that settles into a soft layer on the floor. Bacteria colonise the walls in a slimy film called biofilm. Light entering through a translucent wall or a gap in the lid feeds algae. Each layer protects the next from chlorine in the supply water. Removing them needs the right sequence and equipment, not just effort.

Our water tank cleaning services

Overhead water tank cleaning

Rooftop and loft tanks — plastic (including Sintex-type rotomoulded tanks), PVC and concrete — from 500 litres up to 10,000 litres. These tanks take the most heat and light, so algae and biofilm are common. Explore overhead water tank cleaning.

Underground water tank and sump cleaning

Concrete and brick sumps, usually under a driveway, stairwell or parking slab, from compact 1,500-litre sumps to 30,000-litre reservoirs. Underground tanks collect the heaviest sludge because they receive water first. View underground water tank cleaning options.

Cleaning with disinfection for drinking water tanks

If the stored water is used for cooking, drinking (even after RO) or for children and elderly family members, disinfection is the step that matters most. Read how we disinfect tanks.

Plastic and Sintex tank cleaning

Plastic tanks need a different touch: no wire brushes or abrasive scrubbing that scratches the inner layer and gives biofilm somewhere to grip. See our Sintex and plastic tank cleaning.

Residential, society and commercial cleaning

We clean for independent homes and builder floors, apartments, housing societies, shops, offices and hotels and industrial premises, with annual maintenance contracts for buildings that want a fixed schedule.

The CHKACHK method

Sludge removal comes first

The single most common shortcut in tank cleaning is to skip proper sludge removal. When a tank is scrubbed with sludge still on the floor, the brush and water jet churn it into suspension. Some of it drains out; much of it settles again within hours of refilling. Our team uses a vacuum machine to lift the sludge out of the tank before any scrubbing begins, which is why the water after a CHKACHK cleaning stays clear rather than clouding up again the next day.

Deep cleaning of walls, corners and fittings

After de-sludging, the walls, floor, corners and ceiling are scrubbed and pressure-washed. We pay particular attention to the places that are easy to miss: the underside of the lid, the area around the inlet, float valve and overflow, and the joints where walls meet the floor. These are where biofilm survives a casual clean.

Disinfection and rinse

Once the surfaces are clean, an anti-bacterial disinfectant is applied, left for its contact time, and the tank is rinsed before refilling. Disinfection only works on a clean surface — applying it on top of sludge and slime wastes most of its effect.

Photo proof

You receive before-and-after photos on WhatsApp. For tanks on roofs or under slabs you can't easily inspect yourself, this is the simplest way to know the job was done properly.

Pricing at a glance

Book several tanks in one visit and the cleaning subtotal is discounted automatically — 10% for two tanks, rising to 15% for five or more. A transport charge of ₹0–₹100 may apply, once per booking by PIN code. See the full water tank cleaning price list for examples.

Signs your tank needs cleaning now

• The water smells musty, earthy or like rotten eggs.
• You see particles, a yellow or brown tint, or green specks in a white bucket.
• Your RO pre-filter or tap aerators clog much faster than usual.
• The tank hasn't been cleaned in the last six months, or you don't know when it was last cleaned.
• Water entered the tank during the monsoon, or the lid was left open.
• You've moved into a new home or office.

Looking for water tank cleaning near you?

We serve homes and businesses across Delhi NCR from our office in Naraina, New Delhi. Check your PIN code to see the transport charge, or browse your area:

A trusted water tank cleaning company — and an affordable tank cleaning company

Choosing a water tank cleaning company comes down to three things you can check before booking: a published price, a clear method and proof of the work. CHKACHK is rated 4.8 from 1,854 Google reviews, prices are listed by tank size (from ₹499), and every job ends with before-and-after photos on WhatsApp. That's what makes us a trusted water tank cleaning company without asking you to take our word for it — and fixed prices with multi-tank discounts keep us an affordable tank cleaning company for homes and businesses alike.

Water tank deep cleaning services and sludge removal

A deep clean means the whole tank, not a quick rinse: draining, vacuum sludge removal, scrubbing and pressure-washing every wall and corner, then disinfection. Our water tank sludge removal service lifts settled silt out with a vacuum machine instead of flushing it into your pipes. As water storage tank cleaning experts, our teams handle plastic, Sintex, PVC, concrete and steel tanks of every common size.

Looking for water tank cleaning services near me?

We work across Delhi NCR from our base in Naraina — see the service areas or check your PIN code in the price box. Same-day cleaning is available when a slot is free: choose today's date in the booking form (it shows today's slots until the daily cut-off), or call +91 93546 50395 to check.