
Water Heater Installation, Replacement and Repair Services in Yishun
Safe, compliant water heater replacement for HDBs and condos in Yishun — supervised by PUB Licensed Plumber and EMA Licensed Electrician.
Homeone provide PUB certificate for the installation to ensure the storage water heater safe to use and comply with PUB, EMA, Singapore Standard SS636:2018 Code of Practice for Water Services, SS638:2018 Code of Practice for Electrical Installations and Safety Mark Regulations
Storage water heaters are a must-have for homes in Yishun — from HDB flats to condos and landed houses. Watch out for warning signs like power trips, no hot water, leaks, rust, or corrosion, as these often signal a failing heater.
Engage Homeone today for PUB Licensed and safety-compliant storage water heater replacement, installation, and repair services. Our experienced team ensures every job meets regulatory standards and delivers long-lasting performance.
Number of Water Heater Installed since 2000 in Yishun
HDBs Works
1191
CONDOs Works
1021
Yishun HDBs

We’ve successfully completed water heater installations across Yishun Avenue 4, Yishun Street 51 & Yishun Ring Road HDB flats — every installation was personally supervised by a PUB Licensed Plumber and thoroughly pressure-tested, giving residents a safe, durable, and regulation-compliant hot water system they can rely on for years.
Yishun Condos
We recently completed water heater upgrades for Yishun condominiums including The Criterion, Nine Residences & Symphony Suites — each installation was carefully supervised by PUB Licensed Plumbers, RCCB-tested for electrical safety, and carried out to meet Singapore’s strict regulations, ensuring residents enjoy safe and dependable hot water every day.
Common Water Heater Problems

Thermostat cable burnt
A burnt thermostat cable is a common electrical fault in storage water heaters. It usually occurs when the wire insulation deteriorates due to prolonged heat exposure, loose wiring connections, or electrical overloading.

Rusty Stop Cock & Fittings
Over time, the stop cock and pipe fittings connected to a water heater can suffer from rust and corrosion due to constant contact with moisture and heated water.

Leaking Water Heater tank
In older HDBs (built before 2010).

Missing Drainpipe
Storage water heater pressure relief valve missing drainpipe – a PUB safety non-compliance

RCCB tripping during shower
Caused by failing heating element.

High Water Pressure
140 PSI water pressure is in violation of SS 636:2018 – Code of Practice for Water Services, Clause 6.7. According to the standard:
In tall buildings, fittings should not be subjected to pressures greater than 35 metres head, which is approximately 50 PSI
Unsafe unlicensed installation

- An unlicensed replacement of a storage water heater may result in missing critical safety components, such as the double check valve (also known as an anti-backflow valve). This valve is essential to prevent contaminated water from flowing back into the potable water supply.
- Without this safeguard:
- Backflow contamination can occur, introducing bacteria, rust, and other harmful substances into the drinking water.
- This can lead to health risks including infections, chronic illnesses, and other serious complications—especially for children, the elderly, and those with weakened immune systems.
- It also violates PUB regulations, putting the household at legal and safety risk.
- To ensure compliance and protect your family’s health, always engage a PUB Licensed Plumber for installation and replacement works.
Step by step of Storage Water Heater Installation Process
2. Connector box inspection to confirm proper working order.
3. Water heater Drain pipe inspection to ensure the drain pipe able to drain out water and no choked.
4. water heater Installation location inspection to ensure the new storage able to service and no risk of dropping.
2. Ceiling Cutting (If applicable)
3. Drain out 80% of the water in the water heater
4. Water Heater Removal and Dismantle
2. Water Heater Installation
3. To install stainless steel SS304 hot and cold water pipe for water heater
4. To install a 2.5mm cable for the water heater
5. To install a double check valve for the water heater
6. To install earth bonding for the water heater
2. Water Flow – Hot water flow are the same with cold water
2. PUB Submission
3. PUB certificate to customer within 7 working days
Why Choose Us in Yishun?
Licensed, compliant and tidy work — every time.
Need a similar installation in Yishun?
Water Heater Replacements in Yishun
Replace an existing Rheem 65SVP10S with a new Rheem 65SVP15S at 355 Yishun Ring Road on 15 September 2025.
355 Yishun Ring Road (HDB)
BEFORE
The existing Rheem 65SVP10S water heater, installed at the hdb flat had reached the end of its service life. Age-related issues such as reduced heating efficiency and risk of leaks made a safe, compliant replacement necessary to restore reliable hot water supply.
AFTER
The new model Rheem 65SVP15S has been professionally installed by Homeone. The works included a new stop valve, double-check valve, and drain pipe, along with proper equipotential bonding and 2.5 mm² electrical wiring for safe operation.
Every step was carried out in strict compliance with PUB and EMA requirements, ensuring long-term reliability, safety, and full protection of the manufacturer’s warranty.
Orchid Park Condominium (CONDO)
BEFORE
The existing Rheem 85VP6S above ceiling water heater in this condo had reached the end of its service life. Visible internal tank leakage made repairs uneconomical, requiring a complete replacement to restore safe and reliable hot water supply.
AFTER
A new Rheem 85VP6S water heater has been installed. The scope of works included the installation of a new stop valve, double-check valve, drain pipe, equipotential bonding, and 2.5mm² electrical wiring. The installation is covered by a one (1) year workmanship warranty from Homeone, in addition to the manufacturer’s warranty for the unit.
Replace an existing Rheem 85VP6S with a new Rheem 85VP6S on 13 September 2025 at Orchid Park Condominium.
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