Water Tank Price in Kenya 2026: 1,500 to 10,000 Litre Plastic Tanks + Sizing Guide

Sep 28, 2026
water storage solutions
Water Tank Price in Kenya 2026: 1,500 to 10,000 Litre Plastic Tanks + Sizing Guide

Water tank prices in Kenya on Buy More Mall start at KSh 11,500 for a 1,500 litre tank and go up to KSh 68,000 for 10,000 litres. All are food-grade, double-layer plastic tanks. The 6,000 to 10,000 litre tanks come in black or blue with a 12-year warranty.

Water Tank Price List

TankCapacityPrice
1500L Water storage tank1,500 LKSh 11,500
2000L Water storage tank2,000 LKSh 16,500
3000L Water storage tank3,000 LKSh 24,000
4000L Water storage tank4,000 LKSh 27,500
5000L Reliance Water storage tank5,000 LKSh 36,500
6000Ltrs Water Storage Tank6,000 LKSh 43,800
8000Ltrs Water Storage Tank8,000 LKSh 56,000
10,000Ltrs Water Storage Tank10,000 LKSh 68,000

Browse all tanks in Building Materials.

What Size Water Tank Do I Need?

  1. Estimate daily use. Count the people and what the water is for (drinking, cooking, bathing, flushing, laundry, animals, garden). Your water bill in m³ ÷ 30 × 1,000 gives litres per day.
  2. Decide how many days of storage you want: how long the supply usually goes off, or how long the dry spell lasts if you rely on rain.
  3. Multiply: daily use × days = tank size. Round up to the next size.

Example: a home using 400 L a day that wants 5 days of backup needs about 2,000 L. Doubling up with two tanks is fine and lets you clean one while using the other.

Rainwater Harvesting: How Much Can Your Roof Collect?

Every 1 mm of rain on 1 m² of roof gives about 1 litre of water. A roof of 100 m² in a 20 mm storm can collect about 2,000 litres (a bit less after losses). That is why a good gutter system matters as much as the tank.

Gutter partPrice
Gutter PipeKSh 1,400
Gutter ConnectorKSh 300
Gutter CornerKSh 350
Gutter DroperKSh 350
Gutter End CupKSh 150
Gutter HolderKSh 100

For roofing sheets, see Box Profile Roofing Sheet Prices.

Installation Tips

  • A full tank is heavy: 1 litre of water weighs 1 kg, so a full 10,000 L tank weighs about 10 tonnes. The base must be flat, level and strong: concrete or well-compacted ground. For a raised tank, the stand must be designed for the full weight.
  • Place the tank on a smooth, level base with no stones, which can crack the bottom.
  • Fit a first-flush diverter or mesh on rainwater inlets to keep leaves and roof dirt out.
  • Keep the lid closed to stop mosquitoes and algae. Dark tanks let in less light.
  • Clean the tank at least once a year.

Is Tank Water Safe to Drink?

Stored rainwater or municipal water can pick up bacteria. For drinking, treat it with a filter and UV or an RO purifier. See UV Water Sterilizer Price and RO Water Purifier Price. To pump water up from the tank, see Booster Pumps & Pressure Controllers.

Not sure which one fits? Send us your details on WhatsApp or through the product page and we will help you choose.

Frequently Asked Questions

How much is a 10,000 litre water tank in Kenya?

KSh 68,000 on Buy More Mall.

How much is a 5,000 litre water tank in Kenya?

The 5,000 L Reliance tank is KSh 36,500.

How much is a 2,000 litre water tank?

KSh 16,500 on Buy More Mall.

How much water does 1 mm of rain give?

About 1 litre per square metre of roof. A 100 m² roof collects roughly 100 litres for every millimetre of rain, before losses.

Prices shown are regular prices on Buy More Mall. Many products are currently on offer, so open the product page to see today's price.

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