Water Tank Cleaning Process — Step-by-Step
The full 8-step process behind a real cleaning, with timings and what corner-cutters skip.
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12 specialised services · Delhi NCRFrom a single rooftop tank to an entire society’s underground reservoir, KaamGenie cleans every kind of water tank across Delhi. Twelve specialised services, one operating standard — food-grade chemicals and before-and-after photos sent on WhatsApp. Transparent pricing starting at ₹600.
Twelve specialised services covering every type of water tank, premises, and scenario across Delhi. हिन्दी में पढ़ें →
Cleaning of rooftop overhead water tanks in Delhi homes. 6-step process, food-grade chemicals, before/after photos, 75-90 minute job. Read full guide →
Cleaning of underground concrete sumps in Delhi kothis. Confined-space safety gear, two-person crew, 2-2.5 hour job. Read full guide →
Shared rooftop tanks and large reservoirs serving Delhi societies. RWA coordination, single consolidated invoice, AMC discount available. Read full guide →
Large industrial water tanks and basement reservoirs in Okhla industrial belt. Confined-space entry, ISO-compliant protocols, audit-ready documentation. Read full guide →
Quarterly cleaning for restaurants and food businesses with FSSAI-acceptable disinfection and dated cleaning documentation for licence renewal. Read full guide →
Plastic overhead water tanks. Food-grade soft-bristle brushes only — no metal scrapers that scratch the surface. Pressure-controlled jet wash to preserve tank integrity. Read full guide →
Concrete and RCC water tanks and sumps in older Delhi kothis. Higher jet pressure and longer chemical contact time to clear bio-film embedded in textured walls.
Stainless steel water tanks for residential and commercial premises. Specialised attention around weld joints to prevent corrosion.
Four quarterly visits per year for societies, food businesses, and commercial premises. 15-25% discount versus per-visit booking, same crew every time, GST invoicing.
Food-grade disinfection using sodium hypochlorite at FSSAI-acceptable concentration with 20-minute contact time. Available standalone or as the final step of full cleaning.
Tank cleaning for new homes and rented flats before move-in. Removes accumulated dust, sediment, and contamination from tanks that have been sitting unused.
Same-day cleaning after contamination events — dead bird/animal in the tank, sewage backup, chemical spill. Stronger disinfection cycle, longer contact time, optional water test.
Honest answers to the questions we hear most often when people land on this page.
Most Delhi homes need Residential Overhead Tank Cleaning — the standard rooftop plastic tank cleaning. If you have a kothi with an underground sump as well, that’s the Underground Sump Cleaning service. Societies with shared rooftop tanks across multiple flats book Society Tank Cleaning. Restaurants and food businesses with FSSAI compliance go to FSSAI Tank Cleaning. When you book, tell us your tank type and size — we confirm which service applies and the price on the call. For deeper detail on what each service involves, our step-by-step process guide walks through the actual work.
Pricing varies by service complexity — a 90-minute residential cleaning runs ₹699-1,499, a 4-hour industrial reservoir runs ₹3,000-15,000. Quality is the same across all 12: same trained crew, same food-grade chemicals, same documented six-step process, same before/after photos, same cleaning record. The differences are equipment and time required, not standards. Our cost guide breaks down what’s actually included at each price point.
Honest answer: we don’t have firm launch dates yet. Plumbing is most likely first, sometime in Q3-Q4 2026. Each new category needs trained verified crew, established supplier relationships, and operational testing before we can promise same-day service. We’d rather launch slow and properly than fast and broken. Use the “Notify me” link on any Coming Soon card above and we’ll email you the day that category goes live in your area.
Yes — multi-service bookings will get a discount (typically 10-15% off the second service when booked together). For example, once Plumbing launches: tank cleaning + leak repair on the same visit will be cheaper than booking them separately. AMC contracts will eventually cover multi-category maintenance once we have 3+ categories live in your city.
Three things: published prices (the price quoted on the call is what you pay — no surprise additions), only trained and verified crew (police-verified, KaamGenie ID, name and photo sent on WhatsApp before arrival), and documented proof of every job (before/after photos of the work). Most Delhi providers fail at one or all three. Read about why we built it this way on our about page.
Most Delhi homes should clean their water tank every 6 months — twice a year. Delhi’s dust, hard water and summer heat build up sediment and bio-film faster than in many cities. Homes near construction, on borewell supply, or with kids, elderly or anyone with sensitive skin are better off every 3–4 months. See our guide on how often to clean a water tank and the best time of year to do it.
A standard residential overhead tank takes about 60–90 minutes; an underground sump takes 2–2.5 hours. We work with the water already in the tank, so your supply isn’t cut for long — the tank is refilled and usable the same day. For multiple or large tanks we’ll give you a realistic time on the call.
Yes. The final step is food-grade disinfection (sodium hypochlorite at FSSAI-acceptable concentration) with a 20-minute contact time, after which the tank is rinsed and refilled. The water is safe for normal use the same day, and we send before-and-after photos so you can see the tank is genuinely clean — not just refilled.
Only food-grade cleaning and disinfection agents that are safe for potable (drinking) water tanks. We don’t use harsh industrial acids that damage tank walls or leave residue. The same disinfection standard applies whether it’s a home tank or a restaurant reservoir.
Residential overhead tank cleaning starts at ₹600–1,499 depending on tank size and condition. Underground sumps run ₹1,500–2,500, and society or commercial reservoirs are priced by size. The price quoted on the call is what you pay — no surprise additions when the crew arrives. Full breakdown in our Delhi cost guide and sump cleaning cost guide.
Yes — and most kothis book them together since the crew is already on site. Overhead tanks are a 60–90 minute job; underground sumps need confined-space safety gear and a two-person crew. Booking both in one visit usually works out cheaper than two separate visits. Here’s the difference between overhead and underground cleaning.
Every cleaning comes with before-and-after photos. For restaurants, cafes and food businesses, our disinfection meets FSSAI-acceptable standards and you get dated cleaning documentation you can keep for licence renewal and audits. See the FSSAI water tank requirements for Delhi restaurants.
You can rinse a small tank yourself, but DIY usually misses the bio-film layer stuck to the walls and skips proper disinfection — which is the part that actually makes water safe. A professional clean uses high-pressure jetting and food-grade disinfectant, and you get photo proof. We compare both honestly in water tank cleaning vs DIY.
Practical guides on water tank cleaning in Delhi, written by our specialists.
Same-day service across Delhi (subject to slot availability). We'll confirm shortly after your booking. No pressure to book on the call.