Water Tank Cleaning Charges (Delhi NCR)
Raj Babbar · 9 min read
Home › Water Tank Cleaning › Sintex / Plastic Tank Cleaning › Defence Colony
In Defence Colony’s A-to-D kothis and builder floors along the central nallah, each floor’s plastic tank greens up in the sun. KaamGenie cleans your Sintex tank gently and food-grade. From ₹699.
Defence Colony is an upmarket A-to-D block colony of independent kothis and premium builder floors set along a central nallah. Supply is mainly DJB with some borewells, and each floor usually keeps its own Sintex or plastic overhead tank, with older underground sumps beneath the parking. Because every builder floor stores separately in a plastic tank on the shared roof, there are many translucent tanks in the sun, each growing its own green film that no filter downstream removes before it reaches the tap.
KaamGenie cleans the plastic overhead tanks across Defence Colony’s builder floors and kothis — draining, wet-vacuuming the slimy sediment, soft jet-washing at a plastic-safe pressure and hand-scrubbing the algae with soft pads instead of wire brushes, then a food-grade disinfectant wash. If the old sump under the parking needs doing, see our full water tank cleaning in Defence Colony. This page is specifically about Sintex and plastic tanks.
On a Defence Colony builder floor, each flat’s Sintex tank sits on the shared roof, open to the sun. Light passes through the translucent plastic and warms the water, and algae and biofilm feed on that light and warmth. With several plastic tanks crowded on one roof, some catch direct sun for most of the day. A concrete tank would keep its water dark and cooler, but the plastic tanks along these blocks green up much more quickly.
Being set along the central nallah, Defence Colony carries more humidity and airborne grime around its rooftops, which drifts into tanks through lids disturbed by plumbers and rarely reseated. Where borewell backup is used, hard water leaves scale on the plastic floor for algae to cling to. On upper builder floors the tanks are often the least-watched, so sediment and film build up quietly until a resident finally notices the water tasting or smelling off.
No travel charge anywhere in Defence Colony. 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 Defence Colony — and there’s no travel charge to any of them:
“Do you clean Sintex tanks in C Block Defence Colony?” Yes. C Block and all the A-to-D blocks are on our regular South Delhi rounds. On these builder floors we clean your floor’s plastic overhead tank, or all the floors’ tanks on one roof in a single visit, and we can do the old sump under the parking in the same slot if you want it.
“How much does cleaning a 500-1000L Sintex tank cost in Defence Colony?” A Sintex tank up to 500 litres starts at ₹699 and a standard 1000L is ₹899. Larger tanks cost more by capacity. Since Defence Colony builder floors often share a roof of several plastic tanks, we give a bulk rate on four or more, so cleaning the whole building together is cheaper per tank.
“Can you come the same day to Defence Colony?” Usually yes. Defence Colony is central to our routes, so a morning call to 95603 66362 often gets a crew to you the same day. If not, we fix a next-day slot around your DJB supply timing so your plastic tank is cleaned and refilled without leaving your floor short of water.
“Why does my Defence Colony plastic tank turn green quickly?” Your Sintex tank sits on an open roof in the sun, and light through its translucent wall warms the water and feeds algae. The nallah-side humidity and rooftop grime add to it, and any borewell backup leaves scale for the film to grip. On a lightly-watched upper floor, that green film builds up before anyone opens the tank.
“Is jet-washing safe for my Sintex tank?” Yes. We match the jet pressure to plastic, so it clears scale and biofilm without cracking or gouging the wall, and we finish with soft pads, never wire brushes. Wire brushes leave scratches that algae regrow into, so we keep every Defence Colony Sintex tank smooth so it stays cleaner for longer after us.
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 Defence Colony 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.