BizSAFE Level 4
Transfer Pump Services
Repair, replacement and servicing of transfer pumps that keep roof and high-level water tanks filled.
Overview
In many Singapore buildings, incoming water is stored in a low-level tank and then lifted to a roof or high-level tank by transfer pumps. If the transfer pumps stop, the roof tank slowly empties and the building loses supply — often without warning until taps run dry.
SPS Jetting repairs, replaces and services transfer pump sets, including duty/standby pumps, level controls, float switches, control panels, non-return valves and the associated pipework.
Common works include replacing failed pumps and motors, correcting faulty level controls, resolving continuous running or rapid cycling, and restoring automatic duty/standby changeover so that both pumps share the load.
What We Do
Pump Repair & Replacement
Repair or replacement of failed pumps, motors and mechanical seals, sized to the building's demand and lift.
Level Controls
Testing and replacement of float switches, level sensors and cut-in/cut-out settings at the roof tank.
Valves & Pipework
Replacement of non-return valves, gate valves, strainers and riser connections.
Scheduled Servicing
Routine checks of duty and standby pumps, control panels and alarms to prevent unplanned loss of supply.
Who This Service Is For
Commercial
Offices, malls, F&B outlets, hotels, and commercial buildings across Singapore.
Industrial
Factories, warehouses, manufacturing plants, and industrial estates.
Residential
Condominiums, HDB estates, landed properties, and town councils.
Institutional
Schools, hospitals, government buildings, and public infrastructure.
Transfer Pump Services — Frequently Asked Questions
Common questions about transfer pump services in Singapore, answered by our plumbing and drainage specialists.
What does a transfer pump do?
In many Singapore buildings, incoming water is first stored in a low-level tank at ground or basement level. Transfer pumps lift that water up to a high-level or roof tank, which then supplies the floors below by gravity or through booster pumps.
The pumps are normally started and stopped automatically by level controls in the roof tank, and most installations have a duty pump and a standby pump so supply continues if one fails.
What is the difference between a transfer pump and a booster pump?
A transfer pump moves water from one tank to another, typically from the low-level tank to the roof tank. A booster pump raises the pressure of water going straight to the outlets, usually on the upper floors or for fittings that need a minimum pressure.
Many buildings have both: transfer pumps to keep the roof tank filled, and booster pumps where gravity alone does not give enough pressure.
Why is my roof tank not filling, or running low?
- The transfer pump has failed or its motor has tripped.
- A faulty float switch, level sensor or control panel.
- A low water level in the tank feeding the pumps.
- A closed or partly closed valve, or a clogged suction strainer.
- Air trapped in the suction pipework.
- A leaking non-return valve letting water drain back down.
Several of these faults look the same from the outside, so the tank levels, controls and pumps should be checked together before any parts are replaced.
Why does my transfer pump keep running or switching on and off?
A pump that runs non-stop is usually not reaching its cut-off level, because of a level control fault, a leak or overflow at the roof tank, or a worn pump that can no longer deliver its full flow. Rapid on-off cycling is often caused by level switches set too close together, or a non-return valve letting water fall back down the riser.
Both conditions wear out the pump and motor quickly, so they are worth checking early rather than waiting for a breakdown.
How often should transfer pumps be serviced?
Transfer pumps are best covered by scheduled servicing, with the frequency set by the size of the building and how hard the pumps work. A typical visit checks both duty and standby pumps, level controls, the control panel and alarms, valves and strainers, and looks for noise, vibration and leaks.
Alternating the duty and standby pumps spreads the wear evenly and confirms that the standby pump will actually start when it is needed.
Ready to Get Started?
Contact SPS Jetting for a free consultation and quote on transfer pump services in Singapore.