Water Heater Leaking Service


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Based on 801 reviews
  • Water Heater Leaking Consultation: With more than 10 years of experience, our water heater leaking consultation service are highly recommended and reputable. All water heater works are carried out by well-trained and highly experienced specialists.
  • One-Stop Water Heater Services: We provide one-stop water heater services for our clients, saving them the hassle of liaising with multiple contractors.
  • Wide Range of Water Heater Brands: We are able to supply a wide range of water heater brands includes Ariston, Rheem, Joven, Rubine, 707, and more, for our customers to pick the suitable choice.

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Why Choose Us


We pride ourselves with transparent pricing so that you know exactly what you are paying for

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Professional technicians will complete the water heater installation with guaranteed quality workmanship

Our Water Heater Leaking Projects

Residential  |  HDB Jurong West

Storage Water Heater Replacement

Replacement Model: Ariston AN15R  

Local Manufacturer’s Warranty (By Ariston)

* 5 years leaking warranty for the heater tank.

Works Completed Under PUB Standards and Specifications

* Additional 30 days workmanship warranty.


Residential  |  HDB Bukit Merah

Storage Water Heater Replacement

Replacement Model: Ariston Andris2 Lux 15L

Local Manufacturer’s Warranty (By Ariston)

* 5 years leaking warranty for the heater tank.

Works Completed Under PUB Standards and Specifications

* Additional 30 days workmanship warranty.

Residential |  Condo Bukit Timah

Storage Water Heater Replacement

Replacement Model: Joven JSH35

Local Manufacturer’s Warranty (By Joven)

* 5 years leaking warranty for the heater tank.

* 2 years warranty for the heating element.

Works Completed Under PUB Standards and Specifications

* Additional 30 days workmanship warranty.


Residential  |  HDB Punggol

Storage Water Heater Replacement

Replacement Model: Ariston Andris2 RS 30L

Local Manufacturer’s Warranty (By Ariston)

* 5 years leaking warranty for the heater tank.

Works Completed Under PUB Standards and Specifications

* Additional 30 days workmanship warranty.

What Do We Do?

Best Selling Water Heater Brands

Types of Water Heaters


Frequently Asked Questions (FAQ)

What Are Some Common Causes Of Water Heater Leaks?

Water heater leaks may be due to excess pressure, inadequate plumbing, corrosion or even overheating. Water heater leakage may also occur in the top or bottom part of the heater due to an overflowed pipe caused by pressure or loose piping.

What Are The Signs of Water Heater Failure?

It is important that you know how to identify water heater leaks as it will be able to help you with the water heater repair process. However, repairing your water heater may not be enough as it requires a professional plumber to replace it. You will notice one of the following signs if your water heater is failing:

  • Water heater leaks rusty water
  • Water heater has continuous condensation
  • Water heater produces rumbling noises
  • Bottom of the water heater is burnt

How To Know If Your Water Heater Is Leaking?

It is important to know the causes of a water heater leak so that you can convey the problem effectively to your professional plumber. If your water heater is leaking, you should check for the following:

  • Condensation or Leak

If you see water droplets on your water heater that does not disappear when you are using your water heater, it may be caused by a water heater leak.

  • Rusty Water

Unlike other home appliances, water heaters tend to have a shorter lifespan of about 10 years. If your water heater starts to leak or produces rust-coloured water, it could be caused by a corrosion in the heater tank. Thus, you should quickly have it replaced.

  • Leaking Valve

It is uncommon for water to drip from the valve or tank for temperature-pressure (TP) relief. When the heater tank senses excess pressure, it will remove some water. However, the TP relief valve might be defective and requires immediate replacement.

  • Leaking Drain Valve

Water can also leak from the drain valve. Thus, you should check if the water heater’s drain valve is leaking. If it does, you have to tighten it to stop the leaking. However, if the problem persists, it could mean that you have a defective valve which requires replacement.

What Should I Do If My Water Heater Is Leaking?

You should call a professional plumber once you notice your water heater is leaking. However, you should at least identify where your water heater is leaking so that the plumbers have a better understanding of your water heater problems.

Choose Water Heater City Singapore


Google Rating
Based on 801 reviews

Water Heater City Singapore offers complete water heater services such water heater installation, water heater repair, and water heater leaking services. We provide one-stop supply and installation services for instant water heaters and storage water heaters. Our range of water heater brands includes Ariston, Rheem, Joven, 707, Rubine and more! If you are looking to replace your water heater or install or new heater, do not hesitate to WhatsApp us at +65 8241 0032 for a quick consultation!

Reasons Behind a Leaking Water Heater

Regardless of which brand of water heater you will choose, it will show problems if it is not maintained properly. One of the most common problems is a water heater leaking

Therefore, it is important to have your leaking water heater replaced or repaired immediately. Let us get to discover the different reasons behind a water heater leak.

Old Tank


If your water heater is more than 15 years old, corrosion will be visible and this is a sign that your water heater is faulty

When this occurs, this sign clearly suggests that you must buy a new water heater. 

Drain Valve

Another common reason for a leaking water heater is a faulty water heater drain valve. 

You can tighten up the valve to stop the leakage. Although if the leak is coming from the base of your valve, then you need to replace the valve of the storage or instant water heater.

Too Much Pressure


Another common water heater problem is excessive pressure building inside the tank. Pressure is developed in water heaters when the hot water releases steam and fills up the empty area.

Setting a very high water temperature or if water moves into the system at high pressures, the pressure in your water heater will increase.

Faulty Temperature and Relief Valve

Some causes of instant water heater leaks and storage water heater leaks are also due to the T&P (temperature and pressure) relief valve. 

Remember that it will only leak when the heater is operating, and this is because the relief valve is made to function in a way that releases excess water from the tank while it is heating. 

Inlet and Outlet Connections


Cold water enters your heater through an inlet connection, and hot water comes out from an outlet connection. 

Over time, these connections can get loose, and this is a different type of water heater leak

Internal Tank


A point to note during water heater installation is the tank of an installed water heater makes use of two shells to complete the entire process. 

Water heater leaks can happen in the internal shell, although they are not easy to detect. 

Sediment Collection


After a while, sediment accumulates at the bottom of the installed water heater’s tank. If you are regularly cleaning your tank, then this water heater issue will not affect you. 

Cracked Storage Tank

Once the glass is cracked, the water heater will start to leak.

Also, when water gets hot it starts expanding, and this is the reason why the glass has cracks. This is when you should replace your water heater.

Anode Rod

Corrosive substances are allured towards this anode rod, making your instant or storage water heater remain safe. However, due to corrosion, the anode rod becomes non-existent sooner or later. 


Once the cold water moves into the tank it can cause condensation when the air outside is hot. This is not an issue since you can just wipe down your heater. 

Now that you have figured out why your water heater is leaking, you should also be aware of the different types of water heater leaks to avoid any more issues.


Different Types of Water Heater Leaks

Your instant water heater or storage water heater may develop some issues after it has been used for more than five years. One of the most common issues is water heater leaking. There are different types of water heater leaks which are shared below.

Leaking From Top Of The Tank 


The valve may become loose after it has been used for many years, causing it to leak. Repairing or replacing the water heater valve could solve the problem.

Inlet Or Outlet Pipes Are Leaking

Another reason behind a water heater leaking is due to hot water exposure. connections can become detached or they may start leaking. 

Leaking From The Bottom Of The Tank 


Sometimes you can see that the water heater is leaking from the bottom which could be any of the following reasons:

Overflow Pipe Is Leaking

The TPR valve is connected to the overflow pipe, such that excess water is drained to minimize the pressure in the storage tank of the water heater. If this is ignored,  it may result in a water heater failure

Water Heater Drain Valve Is Leaking 

There are several cases wherein the drain valve has been detached or damaged. This is another reason why a leaking water heater will lead to higher bills

Heating Element Gasket Is Leaking 

Whether you choose a storage or an instant water heater, it has a heating element. Also, it has a gasket that might start to leak due to not being water-tight after several years. 

Water Heater Tank Is Leaking 


High temperature and constant exposure to water, can significantly boost the corrosion of the heater tank. After the heater tank is used for more than five years, the glass lining gets damaged.

Undetermined Leaks

There are several cases wherein higher pressure can cause water leakage from the tank. If the water pressure is minimized, the leaks stop as well. 

All these different types of water heater leaks can cause danger to your household. Take note of the possible risks of a leaking water heater to save yourself from more trouble in the future.


The Possible Risks of A Leaking Water Heater

One of the important reasons why the property owner should check the leaking water heater is that there are possible risks. Some issues that are caused by water heater leaks are described below to know the precautions. 

Potential Explosion


There are some that are caused by a very high temperature or a damaged relief valve. Thus, the pressure buildup will continue, leading to a heater tank explosion, and this is a thing you didn’t know about water heaters. This is dangerous since it may cause injuries, in addition to damaging the bathroom.

Broken Heating Element

Any water heater such as Ariston water heater, Rheem water heater, or Joven water heater has a heating element gasket around it. If this gasket is loose, damaged, or broken it will start to leak. 

Contaminated Water


Another cause for instant water heater leaks or storage water heater leaks is due to rusted pipes. This will make your water contaminated, and the bacteria will be in your water, which can cause health problems.

Property Damage


Since the water heater is usually installed on the walls, the leaking water will be absorbed by the walls and spread throughout the property. 


If there are water heater leaks, the walls and floor around the area become moist, resulting in mold formation. The molds in the air can worsen the respiratory problems of family members. This is the time wherein you should prepare for a water heater replacement


Water is a good conductor of electricity. It is important to know the do’s and don’ts when your water heater is leaking as it can cause an electric shock if it is in contact with electrical wiring or power source.

Having a leaking water heater at home can surely be dangerous. To prevent it from causing more damage, learn more about how to know if your water heater is leaking.


How To Know If Your Water Heater Is Leaking

Whether you have an instant water heater or a storage water heater installed at home, both may result in leaking. We have listed down things to look out for on how to know if your water heater is leaking.

Condensation Occurs on Heater Tank Surface


Homeowners that use gas water heaters may also observe such condensation arising from its vent. You need not worry because it is not a sign of leaking but just condensation, which normally happens.

Storage Water Heater Tank Leaks


The factor that can affect the lifespan of your instant water heater or storage water heater is when the water heater tank starts to rust. it will leak and produce water with rust. 

Temperature-Pressure Relief Causes Valve to Leak


A temperature-pressure (TP) relief occurs on water heater tanks or valves which results in dripping.

If your TP relief valve is damaged, you should call for the services of a water heater professional to have it replaced immediately. 

Drain Valve Leaks

If you see water dripping, you should tighten the valve. If leakages still happen, call a professional plumber to repair the drain valve or conduct a water heater replacement.

Having been able to diagnose if your water heater has leaked is not enough. You should also be aware of the do’s and don’ts when your water heater is leaking.


Do’s and Don’ts When Your Water Heater Is Leaking

Having a water heater leaking is extremely inconvenient for the family. In order to prevent further damage and address the problem of a leaking water heater, here are some of the do’s and don’ts when your water heater is leaking


Here are the following steps you should do when you notice a water leakage: 

Confirm Source Of Leak


An issue you may encounter with your storage water heater or instant water heater is water may form a puddle or collect below the heater. Owing to several reasons such as condensation or heater leaking. In other cases, the water is accumulating due to condensation or spilled water. 

Disconnect Power Supply 


An informative element about electric water heater is that it has its own separate circuit breaker since it requires more power, and the circuit breaker can be switched off. Turning the power off will prevent further heating of water.

Disconnect Water Supply 

If there is a flood in the room, immediately disconnect the water supply. This step will make it easier to find out where the leak is coming from. Ignoring this step is another common water heater mistake you should avoid

Locate and Diagnose The Leak 


It is highly suggested to closely examine the installed water heater to know where the leak is coming from. For some older water heaters, the tank may have formed rust, cracks, or holes due to leaking. When this happens, you should consider buying a new water heater

Call A Plumber

Only a professional plumber can decide if your leaking water heater needs to be repaired or replaced. If an inexperienced person is trying to fix the heater, he may cause more harm, and increase the cost of repairs.


There are possible risks behind a leaking water heater. Therefore any family member should not turn on the power source until the issue is solved. Additionally, do not open the wall by yourself, as you have no idea how long the leak may have been going on. 



Water heater leaks are a common issue, and you may be wondering how to know if your water heater is leaking. The main reason for it is owing to loose pipes or faulty water heater parts. Having faulty water heater components is the reason why your storage water heater is tripping your circuit breaker. Once you detect a leak from your water heater, it is ideal to call the services of a water heater professional like Water Heater City Singapore. We can ensure to solve your water heater leaks in no time. You will definitely enjoy our fast and reliable water heater services.


Water Heater City Singapore offers complete water heater services for both storage and instant water heater tanks including water heater installation and replacement, and water heater leak. We can provide the supply and installation or replacement of Singapore’s most popular water heater brands like Ariston water heater, Rheem water heater, Joven water heater, 707 water heater, Rubine water heater, and Champs water heater. If required, we are also able to open false ceiling, patch it back up and paint it to restore it to its original condition. We have over 10 years of experience for installation of water heaters and have done hundreds of water heater installation cases for landed, condo and HDB, including complete one-stop installation above false ceiling, plastering, and resealing false ceiling. We are a highly recommended Water Heater Services Company in Singapore, with many delighted customers and reviews over the years on Google and Facebook.  WhatsApp us at +65 8241 0032 for transparent quotations and honest pricing for all your water heater needs. We also provide a fast and efficient service to solve any of your water heater needs!