{"id":7068,"date":"2025-10-14T13:10:41","date_gmt":"2025-10-14T05:10:41","guid":{"rendered":"https:\/\/glutenfreepleasure.com\/__proxy_domain\/hdbplumberservice.com.sg\/?p=7068"},"modified":"2025-10-14T13:10:41","modified_gmt":"2025-10-14T05:10:41","slug":"what-to-do-when-your-water-heater-leaks","status":"publish","type":"post","link":"https:\/\/glutenfreepleasure.com\/__proxy_domain\/hdbplumberservice.com.sg\/what-to-do-when-your-water-heater-leaks\/","title":{"rendered":"What to Do When Your Water Heater Leaks"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":7070,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"
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A leaking water heater is one of those emergencies that feels small at first and then quickly becomes costly and dangerous. Even a slow drip can lead to water damage, mould growth, and higher utility bills if left unattended. <\/p>

This guide explains what to do immediately, how to check common causes safely, when to call a professional, and how to prevent leaks in the future. The advice is tailored for Singapore homes, including practical safety and compliance notes for HDB flats.<\/p>

What to Do Right Away When You Spot a Leak<\/h2>

If you spot water under or around your water heater<\/a>, act quickly. Time matters when it comes to leaks because water can seep into walls, floors, and electrical systems faster than most homeowners realise.<\/p>

1. Turn off the water supply<\/h3>

Locate the cold-water shut-off valve on the pipe feeding the unit and close it. This stops fresh water from entering the tank and limits how much leaks out. If you can\u2019t find the valve or it\u2019s stuck, you can shut off the main water supply to your home as a temporary solution.<\/p>

2. Isolate the electricity<\/h3>

For electric heaters, switch off the dedicated circuit or double-pole switch at the distribution board before touching anything near the heater. Water and electricity are a dangerous mix, so do not take chances. If you\u2019re uncertain which switch controls the heater, turn off the main power until help arrives.<\/p>

3. Contain the water<\/h3>

Use buckets or towels to collect leaking water and prevent it from spreading. If you have a wet vacuum, it can help remove standing water quickly. Move valuables and electrical devices away from the area to avoid further damage.<\/p>

4. Assess whether it is an emergency<\/h3>

If water is pooling near electrical fittings, if the ceiling shows bulging from a concealed leak, or if you hear hissing or boiling sounds, leave the area immediately and call a licensed plumber. These are signs that pressure could be dangerously high inside the tank.<\/p>

Quick Checks You Can Do Safely<\/h2>

Once power and water are off, you can carry out some visual checks without tools or dismantling anything. This step helps you describe the problem more accurately when calling for help.<\/p>

Look for loose fittings and hose connections<\/h3>

A dripping joint, a loose compression nut, or a faulty seal often causes small, fixable leaks. Check the visible joints where pipes meet the heater.<\/p>

Check the pressure relief valve (T&P or TPR valve)<\/h3>

This valve is a critical safety device. It releases water when the tank\u2019s pressure is too high. If it leaks constantly, there may be excessive pressure, or the valve itself might be faulty. Never block this valve as it\u2019s designed to prevent explosions.<\/p>

Inspect the drain valve at the base<\/h3>

This small valve allows the tank to be drained for maintenance. If water drips from it even when tightly closed, its washer or internal threads may have worn out.<\/p>

Check the tank body<\/h3>

Run your hand (carefully) along the side of the tank to feel for moisture. Rust stains or bubbling paint are signs of corrosion. If the tank itself is leaking, it\u2019s beyond repair and must be replaced.<\/p>

When and Why to Call a Licensed Plumber<\/h2><\/div>
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Some homeowners attempt DIY fixes, but water heater leaks involve both plumbing and electrical safety. In Singapore, it\u2019s a requirement to use licensed professionals for these tasks.<\/p>

A licensed plumber<\/a> or qualified worker can:<\/p>