Water Tank Cleaning Rules & Norms
Raj Babbar · 9 min read
Home › Water Tank Cleaning › Sintex / Plastic Tank Cleaning › Andrewsganj
In Andrewsganj, the Sintex and plastic tanks on DDA flats and builder floors between Lajpat Nagar and South Extension quietly grow algae because light passes through their walls. We clean them gently and food-grade. From ₹699.
Andrewsganj sits in a compact pocket between Lajpat Nagar and South Extension, mixing DDA flats, cooperative societies and newer builder floors. Water here comes off society overhead tanks and plot-level underground sumps, and on the rooftops those overhead tanks are almost always plastic or Sintex rather than concrete. They are convenient and cheap to fit, but the same plastic walls that make them easy to install also let in the daylight that lets algae take hold inside.
The colony runs on DJB supply, and shared society tanks feeding several flats get topped up often enough to keep bringing in fresh spores. If your block also needs the underground sump cleaned or you want everything done together, our full water tank cleaning in Andrewsganj page covers all of it. Here we are focused specifically on Sintex and plastic tanks and the green, slimy film that keeps coming back on them.
A plastic society tank on an Andrewsganj rooftop catches sun for most of the day, and the light passing through its walls is what green algae live on. Below it, a full builder floor of families keeps the water lukewarm, and warm lit water is close to perfect for a bloom. Concrete tanks stay dark and cool inside, but Sintex and plastic do not, which is why the plastic overhead tanks here show a green film long before anyone expects it.
The water supply adds the second layer. When the borewell backup kicks in during shortages it brings dissolved minerals that settle as pale scale on the plastic, and dust off the busy Ring Road lanes drifts in through lids that no longer seal. A shared tank feeding many flats is refilled several times a day, so sediment never settles out and gets removed. Together, scale and biofilm build a gritty, slippery layer that only a proper scrub clears.
No travel charge anywhere in Andrewsganj. The final price is confirmed on the call before we come — it depends only on tank size and access.
See it done in 45 seconds
Watch our web story on how a tank is really cleaned — drain, de-sludge, jet-wash, disinfect.
We reach every pocket of Andrewsganj — and there’s no travel charge to any of them:
“Do you clean Sintex tanks in the Andrewsganj DDA flats and Extension?” Yes. We cover the whole of Andrewsganj, including the DDA flats, Andrewsganj Extension and the builder floors near Sri Aurobindo Marg and Ansal Plaza. Whether it is a single flat’s plastic tank or a shared society tank on the roof, we can usually fit you in within the same week.
“What does it cost to clean a 500 to 1000 litre Sintex tank here?” A plastic tank up to 500 litres starts at ₹699, and a standard 1000 litre Sintex tank is ₹899. The price includes draining, sediment and slime removal, a plastic-safe jet wash, hand-scrubbing and a food-grade disinfectant rinse, with before and after photos. A society with several tanks on one roof gets a bulk discount on four or more.
“Can you clean my plastic tank the same day I call?” Often yes. Andrewsganj is central to our South Delhi routes, so same-day or next-day visits are usually possible if you call in the morning. One standard Sintex tank takes about ninety minutes, and once it refills the flats are back to normal supply the same day.
“Why does my Sintex tank in Andrewsganj go green so fast?” Andrewsganj tanks are mostly plastic, and plastic walls let sunlight through to feed algae. On a shared rooftop tank warmed by the sun and refilled several times a day for a full building, spores and nutrients keep arriving. That is why a green, slimy film reappears within a few weeks unless the walls are properly scrubbed rather than just rinsed.
“Is pressure washing safe for a plastic tank, and how do you remove algae without scratching it?” It is safe when the pressure is set for plastic, which is exactly what we do, so the Sintex walls are never gouged or cracked. Algae is removed with soft pads instead of wire brushes, because wire leaves scratches that let biofilm grip and regrow faster. A food-grade sanitiser then clears the last spores before the tank refills.
See our complete water tank cleaning services in Delhi NCR — pricing, process, tank types and full city coverage.
Beyond water tank cleaning, KaamGenie is rolling out a full lineup of home services across Delhi NCR — see our complete list of 12 home services we offer or will be launching through 2026. New to tank cleaning? Read our guide on how to pick the right water tank cleaning service in Delhi — what to look for, what to avoid, and the questions that separate trustworthy crews from quick-job operators.
Rooftop plastic tanks
₹699+ →Kothi sumps & underground tanks
₹1,499+ →Apartments & RWAs
Bulk pricing →FSSAI-compliant cleaning
₹2,500+ →टंकी साफ़ करने वाले
हिन्दी पढ़ें →View all water tank cleaning guides →
All pockets and lanes of Andrewsganj covered. If your specific block or society isn’t named in the sub-areas above, just call — we almost certainly cover it.
Same crew, same food-grade process, same-day where possible. Pick any locality below for local pricing and the tanks we typically find there.
Book a slot — we can usually fit you in today or tomorrow.