Sintex & Plastic Tank Cleaning in Khirki Extension

Sintex & plastic tanks in Khirki Extension

Khirki Extension is a dense grid of builder floors and PGs with heavy student and tenant turnover near Malviya Nagar and Saket. Water is stored in small rooftop overhead tanks, and on these buildings they are almost always plastic or Sintex. Because tenants come and go, nobody feels responsible for the tank on the roof, so it is often left uncleaned between one set of renters and the next. A neglected plastic tank in the Delhi sun is exactly where algae take hold.

The area runs on DJB with borewell backup, and that backup water leaves scale on the plastic that only a scrub removes. If your building also needs an underground tank done or a fuller clean, our general water tank cleaning in Khirki Extension page covers it. This page is specifically about Sintex and plastic tanks — the small rooftop tanks that go green and slimy between tenants here.

Why neglected plastic tanks in Khirki Extension grow algae

The small plastic tanks on Khirki Extension roofs heat up quickly in the sun, and light through their walls gives algae exactly what they need. Because these are rental buildings with constant turnover, the tanks are rarely opened or cleaned, so a bloom that starts is left to spread for months. A concrete tank stays dark and cool and slows growth, but a small, unshaded Sintex tank lights up and warms through, letting a green film cover the walls between tenants.

Usage adds the rest. With PGs and shared flats drawing water hard, the tank refills often, and each fill from the borewell backup brings minerals that settle as scale on the plastic floor. Dust off the crowded lanes near Saket blows in through lids that seldom seal on self-built roofs. Since no long-term resident checks inside, the scale, sediment and biofilm simply accumulate until the water turns cloudy or smells, at which point a full drain and scrub is overdue.

How we do it — our 8-step process

• 1. Inspect & drain We check the tank and lid, then drain it down, saving what clean water we can.
• 2. Sediment removal Settled grit and the slimy layer at the bottom are scooped and wet-vacuumed out.
• 3. Soft jet wash Walls, floor and ceiling are jet-washed at a pressure safe for plastic — no gouging or cracking.
• 4. Manual scrub The algae film and inlet/outlet mouths are hand-scrubbed with soft pads, not wire brushes.
• 5. Anti-bacterial treatment A food-grade disinfectant wash kills remaining bacteria and algae spores.
• 6. Vacuum & rinse Loosened dirt is vacuumed out and the tank rinsed clean and ready to refill.
• 7. Lid & overflow check We reseat the lid and check the overflow so light and dust can’t feed new algae.
• 8. Photos & certificate Before/after photos and a dated service record sent to you on WhatsApp.

Sintex & Plastic Tank Cleaning prices in Khirki Extension

• Up to 500 litres (Sintex loft tank) — ₹699
• 501–1,000 litres (standard 1000L Sintex) — ₹899
• 1,001–2,000 litres — ₹1,299–1,499
• Multiple plastic tanks / society — bulk discount on 4+ tanks

No travel charge anywhere in Khirki Extension. The final price is confirmed on the call before we come — it depends only on tank size and access.

Areas we cover in Khirki Extension

We reach every pocket of Khirki Extension — and there’s no travel charge to any of them:

Common questions from Khirki Extension customers

“Do you cover Sintex tank cleaning in Khirki Extension and Khirki Village?” Yes. We work throughout Khirki Extension and the old Khirki Village, plus the builder floors along Press Enclave Road towards Saket and Malviya Nagar. We regularly clean rooftop plastic tanks on tenant-packed buildings, so whether you are a landlord or a tenant, a same-week slot is usually easy to arrange.

“What does it cost to clean a 500 to 1000 litre Sintex tank here?” A small plastic tank up to 500 litres, common on these rental roofs, starts at ₹699, and a 1000 litre Sintex tank is ₹899. The rate covers draining, removing the slime and sediment, a plastic-safe wash, hand-scrubbing and a food-grade sanitiser. Buildings with several tanks get a bulk discount on four or more done together.

“Can you clean my plastic tank the same day I call?” Usually yes. Khirki Extension is well within our Saket and Malviya Nagar routes, so same-day or next-day visits are normally possible. A small Sintex tank takes under ninety minutes, and once it refills the flats are back to normal supply the same day, with a photo record sent afterwards.

“Why does my Sintex tank in Khirki Extension go green so fast?” Khirki Extension tanks are small plastic units that heat and light up fast in the sun, and because rental buildings rarely get them cleaned between tenants, any bloom spreads for months. Heavy PG use keeps refilling and feeding it. Rinsing does not remove the film, so the tank stays green and slimy until the walls are properly scrubbed and disinfected.

“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 what we do, so even a thin, older rental tank is not cracked. We lift algae with soft pads, never wire brushes, because wire scratches the surface and helps biofilm return faster. A food-grade disinfectant then clears the last spores before the tank refills.

Explore more from KaamGenie

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.

Specialised cleaning services in Khirki Extension

Water tank cleaning guides & tips

View all water tank cleaning guides →

Nearby areas we also serve