Water Tank Cleaning Cost Calculator India
Estimate water tank cleaning cost for overhead, underground, and sump tanks — by capacity, tank type, and cleaning frequency.
What you'll need
- Tank capacity in litres
- Tank type — overhead / underground / sump
- Preferred cleaning frequency
How It Works
Enter tank capacity
Tank size in litres — check the tank specifications or housing society records.
Select tank type and material
Overhead, underground, or ground sump. Material (plastic/concrete/steel) affects cleaning notes.
Choose frequency
One-time, semi-annual, or annual — see per-session cost and annual commitment.
Water Tank Cleaning Cost by Capacity (2025–26)
| Tank Type | Capacity | One-Time Cost | Semi-Annual (2×) |
|---|---|---|---|
| Overhead (plastic) | 500–1,000 L | ₹600–₹1,000 | ₹1,200–₹2,000/yr |
| Overhead (plastic) | 1,000–2,000 L | ₹1,000–₹1,800 | ₹2,000–₹3,600/yr |
| Underground sump | 2,000–5,000 L | ₹4,000–₹8,750 | ₹8,000–₹17,500/yr |
| Underground sump | 5,000–10,000 L | ₹7,500–₹15,000 | ₹15K–₹30K/yr |
Prices for metro cities. Tier-2 cities 25–40% lower. Include disinfection with WHO-approved chlorine in your requirement.
Frequently asked questions
What is the cost of water tank cleaning in India?
Water tank cleaning costs in India (2026): Overhead tanks ₹500–₹2,000 (500–2,000 litre), Underground sumps ₹1,500–₹8,000 (1,000–10,000 litre). Cost is roughly ₹1–2/litre for overhead tanks and ₹2–3.5/litre for underground tanks, with minimum charges. Mumbai and Delhi are typically 30–50% higher than smaller cities.
How often should water tanks be cleaned in India?
WHO and BIS standards recommend cleaning water storage tanks every 6 months. In practice, most Indian homes clean annually. If you notice any of the following, clean immediately regardless of schedule: discoloured water, foul smell, slippery surfaces inside the tank, algae growth, or if someone in the household had waterborne illness.
What does a professional water tank cleaning include?
Professional water tank cleaning includes: complete emptying, high-pressure scrubbing of all internal surfaces, manual cleaning of corners and seams, disinfection with WHO-approved chlorine solution (50–100 ppm), refilling, and a post-cleaning inspection. Some services also include a water quality test (TDS, pH) — ask specifically for this.
Is it safe to drink water immediately after tank cleaning?
Wait 2–4 hours after refilling before drinking. Discard the first 50–100 litres if there is a strong chlorine taste. If a water purifier (RO/UV) is connected to the tank, it should eliminate any residual chlorine. For underground tanks, do a water ponding test for 24 hours and get a coliform test done if the tank was heavily contaminated.
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