A leaking water heater can quickly turn from a minor inconvenience into a serious problem, causing water damage, higher bills, and stress in your home. If you notice puddles, rust, unusual noises, or inconsistent hot water, it’s time to act fast.
Signs Your Water Heater Is Leaking
Before addressing a leak, it’s important to recognize the warning signs. Water pooling around the base of the heater, rust or corrosion on the tank, and inconsistent hot water supply are all strong indicators that your unit may be compromised. Unusual sounds such as popping, banging, or hissing often signal sediment buildup or pressure issues that can lead to leaks. Detecting these signs early can save you from costly repairs or a full water heater replacement.
Immediate Steps to Take When Your Water Heater Is Leaking

When you discover a leak, safety and quick action are critical. First, turn off the power supply—switch off the circuit breaker for electric water heaters, or turn off the gas valve for gas units. Then, shut off the cold water supply to prevent additional water from entering the tank.
If the leak is significant, draining the tank can minimize water damage. Connect a garden hose to the drain valve and direct water outside or into a safe drainage area. Be careful, as the water may still be hot.
It’s also essential to inspect the source of the leak. Common areas include the top of the tank, which may have loose connections; the bottom, which could indicate corrosion; and the temperature and pressure relief (TPR) valve. In some cases, a leaking drain valve is the culprit and can be replaced easily.
Important safety note: If you smell gas or suspect a gas leak, evacuate the area immediately and call a professional plumber or your gas company. Do not attempt repairs yourself.
Common Causes of Water Heater Leaks
Water heaters are prone to leaks for several reasons. Age is a major factor—most units last between eight and twelve years—and older tanks are more susceptible to corrosion. High water pressure can strain the tank and connections, while sediment buildup from hard water can weaken the bottom over time. Temperature fluctuations and vibrations may also loosen plumbing connections. Additionally, failure of the anode rod, which prevents internal corrosion, is a common cause of leaks in older units.
Water Heater Repair vs. Replacement
Whether to repair or replace your water heater depends on the severity of the leak and the age of the unit. Minor leaks often can be resolved by tightening connections, replacing the TPR valve, or fixing a faulty drain valve. However, if the tank itself is leaking from corrosion, replacement is generally the most cost-effective and long-lasting solution.
When considering replacement, think about energy efficiency. Modern water heaters, including tankless and hybrid models, can save energy and reduce long-term utility costs. Also, always check warranties on both repairs and new installations to ensure peace of mind.
Preventive Steps to Avoid Future Water Heater Leaks
Maintaining your water heater is key to preventing leaks and extending its lifespan. Follow these steps:
- Schedule annual inspections to check for wear, corrosion, and sediment buildup.
- Flush the tank regularly to remove mineral deposits.
- Inspect and replace the anode rod every 3–5 years to prevent corrosion.
- Monitor water pressure and install a pressure-reducing valve if needed.
- Check all valves and plumbing connections for signs of wear.
- Maintain safe temperature settings at 120°F to prevent scalding.
- Install an expansion tank for closed water systems to reduce pressure stress.
Why Choose John Degrace Plumbing & Heating for Water Heater Services in North Arlington, NJ
At John Degrace Plumbing & Heating we provide professional water heater repair, replacement, and maintenance services. Our team is licensed, insured, and certified to handle all types of water heating systems, including tankless and hybrid models. We offer:
- 24/7 emergency plumbing service for leaking water heaters
- Same-day repair and replacement
- Free estimates on new water heaters
- Service across North Arlington, Lyndhurst, Kearny, and all of Bergen County
- Expert advice on energy-efficient water heating solutions
Our goal is to minimize disruption to your home and ensure your water heating system is reliable and safe.
A leaking water heater should never be ignored. Turn off the power or gas, stop the water supply, and contact a professional immediately. At John Degrace Plumbing & Heating we respond quickly to emergencies and provide the expertise needed to repair or replace your water heater safely and efficiently.
Call Now for Emergency Service: (201) 997-8565








