If you've just walked into your laundry, bathroom or kitchen and found a small puddle of water near your water heater, you're not alone. Water heaters can be sneaky leakers, and when they start acting up, you’ll probably find yourself asking, “Can a plumber fix a leaking water heater?” The short answer? Yes—but there’s more to it than just picking up the phone. Let’s break it down.
Water heater leaks can be caused by a variety of things. It might be something simple like a loose valve or something more serious like corrosion in the tank. Here are the most common culprits:
Knowing the cause helps you figure out if you can patch it up or if it’s time to replace the whole unit.
Sometimes, the signs are subtle. Besides visible water around the base, you might notice:
If you suspect a leak, don’t ignore it—small drips can turn into big floods.
Absolutely. First, switch off the power supply—electric or gas. Then, shut off the cold water inlet valve (usually located at the top of the heater). This stops more water from filling the tank and leaking out.
It can be. Leaks near electrical parts pose a shock hazard. Gas water heaters can leak dangerous fumes. And of course, water damage to your home can be costly. So don’t wait—take action quickly.
For anything beyond a simple tightening of a valve, you need a licensed professional—especially when gas is involved. Gas appliance repair is not a DIY job. That’s where experienced tradespeople like those at Prima Plumbing come in. They're licensed, insured, and trained to handle these repairs safely.
Call Prima Plumbing if:
They offer fast, reliable hot water system repairs in Sydney and have plenty of experience with both electric and gas water heaters.
Feeling handy? You can try:
Just remember—safety first. If you’re unsure, step away and call the pros.
These are signs you need more than a wrench—you need expert help.
On average, you might pay anywhere from $150 to $500 for a standard repair. More complex jobs, like replacing internal components or dealing with gas systems, could run you $600 to $1,200.
Watch out for:
Get a quote upfront from Prima Plumbing to avoid any bill shock.
This is one of the most common fixes. The valve lets off pressure when it gets too high. If it's faulty, it might drip constantly. Swapping it out is quick and affordable.
Leaks from joints or fittings can usually be tightened or resealed. But if your tank itself is leaking, you’ll probably need a new unit.
If your heater is:
…it’s time to say goodbye. A new unit will save you money long-term.
These are red flags that it’s time for a checkup—or a full water heater replacement.
It’s not safe to use a leaking water heater. You risk flooding, electrical hazards, and even gas leaks. Shut it off and call a plumber.
If it’s a small external leak, you might get by for a few weeks. But internal leaks usually mean it’s near the end of its life.
Start by turning off the power and water supply. Then call a professional like Prima Plumbing to assess and repair it properly.
That’s a sign of rust inside your tank. It means your heater is corroding—and a leak might be next.
It can be. Especially if it involves gas or electricity. Don’t take chances—treat it like an emergency and call in the pros.
A leaking water heater might seem like a small issue, but it can cause big problems fast. Whether it’s a simple valve swap or a full tank replacement, don’t ignore it. When in doubt, call the experts at Prima Plumbing. They know their stuff and can save you from a messy, costly disaster. Stay safe—and stay dry!
Less than 24hr response time! For emergencies please call us.

Less than 24hr response time! For emergencies please call us.
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466489C
ABN 35 668 552 976
Service Areas
Sydney, New South Wales
0431 104 490
admin@primaplumbing.com.au
SERVICE AREAS
Sydney, New South Wales
0431 104 490
admin@primaplumbing.com.au
BRANDS WE WORK WITH
Payment Methods

466489C
ABN 35 668 552 976
SERVICE AREAS
Sydney, New South Wales
0431 104 490
admin@primaplumbing.com.au
BRANDS WE WORK WITH
Payment Methods

466489C
ABN 35 668 552 976

