Overhead vs Underground Tank Cleaning
Raj Babbar · 9 min read
Home › Water Tank Cleaning › North-West Delhi › Rohini Sector 5
We clean the overhead tanks, sumps and combined systems of Rohini Sector 5's DDA HIG flats, group-housing societies and kothis — same day where possible. Starting ₹699.
Sector 5 has a more upmarket housing mix than its neighbours — DDA HIG flats, larger registered group-housing societies and some sizeable plotted kothis — so the tanks tend to be bigger and more of them are combined overhead-plus-underground systems driven by pumps. The larger HIG blocks and societies run 5,000L-plus overhead tanks with matching sumps, and because these serve so many households the sediment and biofilm load is heavy if a clean is skipped. DJB supply is the main source with society borewell backup in the bigger complexes, so we see both hard-water scaling and borewell grit. The kothis here often have a landscaped terrace with the tank tucked behind, which just means a bit more crew care on access.
Sector 5's larger societies plan ahead, so we do a fair amount of scheduled contract work here rather than emergency calls. We block out full mornings for the bigger complexes and coordinate through the society manager, while individual HIG-flat and kothi owners get same-day slots in between.
For a standard 1000-litre overhead tank, the whole job takes about 90 minutes from doorbell to pack-up. Underground sumps take longer — usually 2 to 2.5 hours depending on sludge. You don’t need to provide anything: we bring our own water for the rinse, vacuums, jet pumps, food-grade disinfectant and gloves, and send before/after photos on WhatsApp.
The typical Sector 5 job is a HIG block or group-housing society running a 5,000L-plus overhead tank fed from an underground sump, where both need doing together to properly clear the system. We drain and de-silt the sump, scrub and descale the overhead tank, disinfect the whole line and refill. A combined overhead-plus-sump clean here runs ₹4,500-6,000 depending on capacity, and for these larger systems that combined clean is genuinely the right call rather than doing halves. The society recovers the cost across flats, keeping each household's share modest for the size of tank involved.
Individual DDA HIG flat owners and kothi residents who want just their own tank done can book from ₹699, rising to ₹1,499 for a larger single tank or one with awkward terrace access. The bigger societies get the most value from an annual RWA contract covering all block tanks and sumps on a fixed twice-a-year schedule, which locks in a per-tank rate and a guaranteed slot before summer. Hard-water descaling on the HIG-block tanks is a frequent ₹300-500 add-on. For resale HIG flats, a move-in sanitising clean before the family shifts in is a common same-day one-off.
“Our HIG block has a big overhead tank and a sump — should both be cleaned?” Yes, for a large block it is best to do both together. A combined overhead-plus-sump clean is ₹4,500-6,000 depending on capacity, and it clears the whole system properly in one visit.
“Do you offer annual contracts for larger societies?” We do — a fixed twice-a-year contract covers all your block tanks and sumps, locks in a per-tank rate and guarantees a slot before summer. The society manager coordinates one schedule.
“Can you clean just my HIG flat tank quickly?” Yes. An individual tank starts at ₹699 (up to ₹1,499 for a larger or hard-to-reach one) and we can usually fit it in the same day.
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 Rohini Sector 5 covered. If your specific block or society isn’t named above, just call — we almost certainly cover it.
Same crew, same prices, same-day where possible. Pick any locality below to see what we typically find there and area-specific pricing.
Book a slot — we can usually fit you in today or tomorrow.