# Water Heater Not Working Singapore: Repair or Replace, 2026 Prices | Plumbline

> No hot water, a leaking tank or a heater tripping the power? What each symptom means, when to repair or replace, and published 2026 water heater prices in Singapore.

URL: https://plumber.makemoney.living/guide/water-heater-not-working/

- Home 
- / Water heater replacement
- / Water Heater Not Working? Repair or Replace Decision guide 

# Water Heater Not Working? Repair or Replace

Updated 2026-10-11 · by Plumbline 

 Short answer: A heater that trips the power has an electrical fault and needs a licensed electrician. A leaking storage tank is usually replaced, not repaired. No hot water with no trip can be a part such as the thermostat or element. Published 2026 prices run from about S$280 for an instant heater to S$1,180 for a storage tank supplied and installed. 
[Plumbline](/) writes these guides from PUB and government sources and published Singapore price data; each claim links to where it comes from. 

## What the symptom tells you

 Symptom Likely cause Who to call 
 Heater trips the power (RCCB) Electrical fault in the heater or its wiring A licensed electrical worker 
 Water leaking from the tank Tank corrosion or a failed seal Plumber; usually a replacement 
 No hot water, no trip Thermostat, heating element or a setting Plumber or electrician to diagnose 
 Rusty or smelly hot water Ageing storage tank Plumber; often a replacement 

Wiring work must be done by an EMA-licensed electrical worker. On the water side, PUB lists the pipe between a stop valve and an instantaneous water heater among the simple works; other water service work is regulated ([PUB](https://www.pub.gov.sg/Professionals/Requirements/Licensed-Plumbers/Plumbing-Works)). 

## Repair or replace

Replace when the tank leaks , when it is rusting , or when a repair costs a large share of a new heater. Repair when it is a single part on a heater in otherwise good condition. 

## Published prices

Rates read from Singapore plumbing firms’ websites in August and September 2026 ([source](https://www.misslobang.com/article/best-plumbers-singapore-2026)): 

- Instant heater: S$280 to S$500 at one firm; from S$400 (installation only) at another

- Storage heater: S$350 to S$600 at one firm; up to S$1,180 supplied and installed at another

## Get it in writing

Ask for the heater model and the labour as separate lines, check the heater’s price yourself, and agree the total before work starts. 

[Request a water heater quote](/water-heater-replacement/). 

Want a plumber to sort it? 
A plumber who covers your area calls you back with a price. 
 
Request received. 
A plumber who covers your area will call you on the number you gave. If water is flooding, turn off the main stop valve beside your water meter while you wait. 

## More questions

 Instant or storage heater: which is cheaper to replace? + 
Instant heaters are usually cheaper to buy and install. At one firm, instant heaters are priced at S$280 to S$500 and storage heaters at S$350 to S$600. My heater trips the RCCB. Is it safe to use? + 
No. Switch it off at its isolator and get it checked. A heater tripping the earth-leakage breaker means current is leaking where it should not. [Related serviceWater heater replacementNo hot water, a leaking tank, or a heater tripping the power: repair or replace.](/water-heater-replacement/) 

Related guides 
- Water Bill Suddenly High? Check for a Hidden Leak in 30 Minutes
- Licensed Plumber or Handyman? What PUB Allows
- How Much Does a Plumber Cost in Singapore? (2026 Prices)
- Toilet Bowl Choke: What to Do, What Not to Do
- Who Fixes Which Water Pipe in an HDB Flat? 

Get a plumber who covers your area to quote. 
A plumber who covers your area calls you back with a price. Tell us what is happening and the type of home. 
 [Get a plumber](/contact/#request)