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Water Heater Services in Singapore: 1 water heater specialist compared

Updated October 2026How we rank
Water heater installation in Singapore involves both electrical and plumbing work. New wiring or a dedicated power point must be done by an EMA Licensed Electrical Worker, and new water pipe work by a PUB Licensed Plumber. Replacing the pipe between the stop valve and an instant heater is simple work a handyman may do.

All 1 water heater specialist in Singapore

Businesses with the most complete public records first, photos, licence matches, hours and track record. Never ordered by payment.

Ordered by verifiable signals, licence matches, track record and completeness of public records. Featured placements are labelled and never change this order.

What licence should a water heater specialist have?

  • Licensed Electrical Worker (LEW)

    Energy Market Authority (EMA) · Required by law

    Needed to install or modify wiring and add or replace power points for a water heater.

    Check the official register

  • Licensed Plumber (LP)

    PUB, Singapore's National Water Agency · Required by law

    Needed for laying, altering or replacing water service pipes. Replacing the pipe between a stop valve and an instantaneous water heater is listed by PUB as simple work that does not need a licensed plumber.

    Check the official register

How to choose a water heater specialist

  • Decide between instant and storage heaters: instant heaters suit single bathrooms, while storage heaters serve multiple outlets and rain showers better.
  • Check that the electrician will install the heater on its own circuit with the correct isolator and that your RCCB is working.
  • Ask whether the quote includes removal of the old heater, new piping and fittings.
  • For storage heaters, confirm the wall can bear the weight and that the bracket is fixed properly.

Red flags

  • Installers who skip the earth connection or bypass the RCCB.
  • No licensed worker for new wiring or pipe rerouting.
  • Recommending replacement without testing the heating element or thermostat.

Questions about water heater services in Singapore

Who can install a water heater in Singapore?

Electrical connections such as a new power point or wiring must be done by an EMA Licensed Electrical Worker. New water pipe work must be done by a PUB Licensed Plumber. PUB lists replacing the pipe between a stop valve and an instantaneous water heater as simple work that can be done without a plumbing licence.

How much does it cost to install a water heater?

Electricians typically charge about $100–$150 for the electrical installation or replacement of a water heater, excluding the unit itself. Storage heaters with new piping cost more. Ask for a quote that covers the unit, labour, piping, removal of the old heater and transport.

Why is my water heater tripping the power?

A heater that trips the RCCB may have a faulty heating element, water ingress or a wiring problem. Switch it off at the isolator and stop using it, then call a licensed electrician to test it. Do not bypass the RCCB, which is there to protect against electric shock in wet areas.

How many water heater services are there in Singapore?

Lookup lists 1 water heater services in Singapore as of October 2026, with the largest concentration in Bukit Merah (1). Listings are compiled from government registers and open map data and refreshed regularly.