Water Tank Installation adds storage to a home, farm or business: for borehole water, municipal backup or rainwater. A tank lets a borehole pump slowly at its safe rate, keeps water flowing through outages, and feeds a booster pump for pressure.
- Say what will fill the tank: borehole, municipal supply or gutters.
- Give daily use or number of people.
- Describe where the tank can stand.
Compare quotes for water tank supply and installation.
Compare Water Tank QuotesSizing Storage
- Household backup: enough for your daily use multiplied by the days you want to cover.
- Borehole systems: at least a day of demand so the pump can run at the tested rate.
- Livestock and irrigation: peak summer demand.
- Fire fighting or business continuity: per site requirements.
Bases, Stands and Placement
- Ground level on a level concrete slab or compacted base, for booster-pump systems.
- Steel stands for gravity pressure. Stands must be engineered for the full weight: 1 litre weighs 1 kg.
- Keep tanks away from boundary walls that cannot take the load, and check estate or municipal rules on placement and screening.
Connections and Controls
- Inlet with a float valve or level switch to stop the borehole pump.
- Outlet, isolation valve and booster pump connection.
- Overflow and drain directed away from foundations.
- Bypass or changeover valve between municipal and tank supply.
- Linking several tanks together.
The Water Tank Installation Process
- Site check. Position, base, access and plumbing route.
- Base. Slab or stand is prepared and levelled.
- Placement. Tanks are positioned and connected.
- Plumbing and controls. Inlets, outlets, valves and level switches are fitted.
- Test. Filled, checked for leaks and switching.
Water Tank Installation Prices
| Item | Ballpark price |
|---|---|
| 1,000 L plastic tank | R2,400 - R2,950 |
| 2,400 - 2,500 L tank (budget brands to JoJo) | R2,200 - R5,200 |
| 4,750 - 5,250 L tank | R5,500 - R7,700 |
| 10,000 L tank | R12,500 - R19,400 |
| Steel tank stand | R2,800 - R26,000 |
| 1,000 L backup system, installed | About R14,500 |
Ballpark figures, not quotations. Ranges compiled from price guides published by South African contractors, suppliers and quote websites, checked October 2026 and rounded where needed. They are not our prices and no contractor is bound by them. Tank prices are retail, usually VAT inclusive, and exclude delivery, base and plumbing. Stand prices depend on height and capacity. Confirm whether VAT is included on every quote.
Sources:
- South African retailer listings via Google Shopping: Builders, Leroy Merlin, Build it, Cashbuild, JoJo and others (October 2026)
- Leroy Merlin installation service listings (October 2026)
What Affects Water Tank Installation Quotes
- Tank size and number.
- Slab or steel stand.
- Distance and complexity of plumbing.
- Booster pump, filtration and controls.
- Delivery access.
Questions to Ask About Water Tank Installation
- Is the base or stand designed for the full load?
- What tank brand and UV warranty?
- How will the tank switch between borehole, municipal and rain supply?
- Where will overflow water go?
- Is a booster pump included?
Compare tank installers through Borehole Installation South Africa.
Borehole-fed systems start with borehole drilling.
Related Services
Water Tank Installation FAQs
What size tank do I need?
Multiply your daily use by the number of days you want to cover. Many households start with 2,500 - 5,000 litres for backup.
Can borehole water go into the same tank as municipal water?
Municipal by-laws usually prohibit any cross-connection between a private supply and the municipal network. Keep supplies separate or use an approved arrangement.
Do I need a stand?
Only for gravity pressure. Most homes use a ground-level tank with a booster pump.
Do tanks need cleaning?
Yes, periodically, especially if they store drinking water.
Do I need permission for a tank?
Usually not for a typical home tank, but estates and some municipalities have placement rules.
Borehole Installation South Africa is a free quote-comparison service. The installation is quoted and carried out by independent contractors, and your agreement is with the contractor you appoint. Availability depends on your location and on contractors taking on that kind of job. Before you pay a deposit, get a written quote that lists what is included and excluded, the guarantee terms and the payment terms.
Water Tank Installation. Compare quotes for storage and backup systems.
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