Overhead vs Underground Tank Cleaning
Raj Babbar · 9 min read
Home › Water Tank Cleaning › South Delhi › Deoli
Deoli — densely built colonies and builder floors off Devli Road near Khanpur and Sangam Vihar. Borewell-and-tanker mix, hard water, quick sediment. Starting ₹699.
Deoli is a dense, fast-grown belt off Devli Road between Khanpur and Sangam Vihar — narrow lanes packed with three- and four-storey builder floors and older independent houses. DJB supply is patchy, so most buildings lean on borewell and stored tanker water. In the rooftop tanks we open here we routinely find a fine silt at the base from the borewell draw and a mineral crust on the walls. Many stacks feed several tenant families from one overhead tank, so a neglected tank affects a whole building at once.
Because supply is irregular, households in Deoli store as much as they can and top up from tankers, which stirs in whatever sediment the tanker carries. Tanks then sit full through the summer, letting silt settle and bacteria grow if the lid is loose. We see mostly 500–1,000L overhead Sintex tanks and some ground-level storage drums. On this borewell-and-tanker mix, cleaning every two months keeps the water clear; quarterly is the minimum we’d recommend.
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.
When DJB runs short, Deoli households top up from private tankers, and that water often arrives with its own sediment and the occasional off smell. Stored in an overhead tank with a loose lid, it settles into a silt layer and can turn the whole tank cloudy. We drain fully, scoop and vacuum the settled sediment, jet-wash the walls, and disinfect with food-grade chlorine so the next tanker fill goes into a clean tank. A 500L tank is ₹699 and up to 1,000L is ₹899.
Plenty of Devli Road buildings run one common overhead tank feeding several rented floors, and with owners and tenants split across the stack, the cleaning is nobody’s clear job — so it drags on for years. We clean the shared overhead tank in a single visit and send before-and-after photos to whoever manages the building, so the whole stack benefits at once. It’s an easy cost to split across floors, and there’s no area surcharge for Deoli — the same ₹699 start as everywhere.
“We fill from tankers — is cleaning still worth it?” Very much so. Tanker water often carries sediment and settles into silt at the tank base, so cleaning before the buildup gets thick keeps every fill clearer. On Deoli’s tanker-and-borewell mix we suggest every two months; a 500L tank is ₹699 and the job takes about 90 minutes.
“Can the whole building share one cleaning?” Yes. Many Devli Road builder floors run a shared overhead tank — we clean it in one visit and send before-and-after photos to the building manager, then you split the cost across floors. A 1,000L shared tank is ₹899, and we can coordinate a slot that suits all the tenants.
“Do you charge extra for Deoli’s narrow lanes?” No. Pricing is standard across Delhi, starting at ₹699, with no surcharge for the area or the lanes. We can usually come same-day if you call before 10 AM, Sundays included, and we bring our own water, vacuum and jet pump so you don’t need to arrange anything.
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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 Deoli 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.
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