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Water tank size estimate
Work out the water tank size your household needs and what a plastic or concrete tank costs.
What affects the price
- Household size and water use
- Hours of supply in your area
- Overhead vs underground tank
- Tank layers and UV protection
Good to know
- Per-gallon rates are derived from 2026 dealer price lists; bigger tanks cost less per gallon.
- Layer counts are seller claims; price tracks brand line and wall thickness more than layer count.
- Tank sellers use ~3.8-4 L 'gallons', not imperial 4.546 L.
- Per-capita demand standard is an Indian code widely used in South Asia; no Pakistani code figure was located.
How we calculate
We researched current rates from several Pakistani suppliers, contractors, price lists and market reports in October 2026 and use the low and high end of what we found. Your inputs are multiplied by those rates to give a range, not a single figure. Labour, transport, taxes and your exact specification can move the final price, so treat the result as a budget guide and confirm with written quotes.
| Item | Range | Unit | Notes |
|---|---|---|---|
| Plastic tank per gallon | Rs 76 – 116 | PKR per gallon | Derived: price / labelled gallons, 125-500 gal overhead tanks, Pakistan 2026. 3-layer line on source 2: medium 12,500-40,000 and heavy 14,500-46,500 for 125-500 |
| Plastic tank 4layer per gallon | Rs 68 – 84 | PKR per gallon | Derived: 4-layer blow-moulded line on source 2: 10,500 to 34,000 = 68-84/gal; source 3 sale price from 9,999 for 500 L = 80/gal. Layer count is a seller claim; |
| Tank cleaning | Rs 1,650 – 6,000 | PKR per tank | Lahore. Plastic overhead 100-500 gal: 1,650-3,000. Cement overhead 6x6 to 12x12 ft: 2,000-5,500. Underground cement: 2,500-6,000. |
| Plastic tank 2layer per gallon | Rs 96 – 104 | PKR per gallon | Derived from a double-layer vertical tank list: 200 L 4,595 to 1,100 L 23,200, using 3.785 L per gallon as the list does. Single source. |
Houseplot market research, October 2026. Ranges across several Pakistani suppliers, contractors and published price reports; actual quotes vary.
Estimate only. Prices change with market rates, quality and site conditions. Always get written quotes before you pay. Request free quotes from verified water tank suppliers.