Water Heater Installation & Replacement | PUB Licensed in Singapore

The cost of water heater installation or replacement in Singapore depends on the heater type, capacity, location and the condition of the existing setup. A straight swap of a storage heater usually costs less than a new installation that needs new piping, a new electrical point or ceiling access work.

Send Homeone your property type and photos of the heater and installation area, and we will recommend suitable options and quote for the work involved.

Replacement means removing an existing heater and fitting a new one at the same point, reusing the existing water and electrical connections where they are still in good condition.

New installation means fitting a heater where there was none before, or at a new location. This usually involves new water piping, a new electrical supply point and mounting work, so it typically takes longer than a replacement.

Water heater installation and replacement that involves water service work should be carried out by, or under the supervision of, a PUB Licensed Plumber, in line with Singapore's plumbing requirements. Electrical connections should be carried out by an EMA Licensed Electrical Worker.

Licensed installation helps ensure the pipes, valves and electrical supply are installed safely and correctly.

The right type depends on how many bathrooms need hot water, how many people use it at the same time and the space available.

• Storage water heaters suit homes that need hot water for more than one bathroom or for longer showers.
• Instant water heaters suit single bathrooms with limited space.

Homeone can review your setup and recommend a suitable type and model.

The capacity you need depends on household size, the number of bathrooms connected to the heater and how many people shower one after another. An undersized heater runs out of hot water quickly, while an oversized one takes up more space and uses more energy to keep water hot.

Tell us how many people and bathrooms the heater will serve, and we will recommend a suitable capacity that fits your available space.

Most straightforward water heater replacements take approximately 3-4 hours. New installations, relocations, or jobs that need additional plumbing, electrical or ceiling access work may take longer.

Replacement may be more suitable when a water heater has significant leakage, corrosion, repeated electrical faults or deterioration that makes repair unreliable or uneconomical. Signs to look out for include:

• Visible tank leakage or corrosion
• Repeated loss of hot water
• Frequent electrical tripping
• Visible damage to electrical components
• Repeated faults after previous repairs
• Replacement parts are no longer readily available

A site assessment can help determine whether repair or replacement is the more practical option.

A typical replacement includes removal of the existing heater, installation of the new unit, reconnection of the applicable water and electrical services, and testing and commissioning of the new heater.

Additional work such as valve replacement, pipe modification, a new electrical point, bonding or ceiling access may be required depending on the existing installation condition or the new heater location.

Yes. Homeone carries out water heater installation and replacement for HDB flats, condominiums and landed homes, including new BTO flats. The installation method depends on heater location, ceiling access, available space, existing pipe routing and electrical arrangements.

In many cases, yes. Relocating a water heater usually involves rerouting water pipes, extending or adding an electrical supply point and checking that the new location can safely support the heater. A site assessment is needed to confirm whether the new location is suitable.

Yes. In many installations, an existing water heater can be replaced with another brand as long as the new model suits the available space, capacity requirements, water connections, electrical supply and other installation requirements.

Homeone can review your existing setup and recommend compatible replacement options.

Yes. Homeone can remove and dispose of the existing heater as part of the replacement work. Larger or heavier heaters may require additional handling depending on their size, location and site accessibility.

Homeone provides a 1 Year Engineering Warranty for applicable installation work. The water heater itself may also come with a manufacturer's warranty, with the coverage period and terms depending on the brand and model.

Keep your invoice and warranty documentation for any future warranty claims.

Send Homeone your property type and clear photos of the existing heater (or the planned installation area), including the valves, pipes, electrical connections and available access. This helps us assess the setup and quote accurately.

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