How to Tell If Your Water Heater Needs Replacing

It's not always obvious when its time to address the water heater.
If you’ve ever stepped into an unexpectedly cold shower, you already know—your water heater is one of the unsung heroes of your home. But just like any hardworking appliance, it won’t last forever. So how do you know when it’s time to repair it... or replace it altogether?
At Lone Star Plumbing Works, we help homeowners across Austin and the surrounding areas make smart, stress-free decisions about their plumbing systems. Here are the top signs your water heater might be ready for retirement—and when to call a pro.
1. Inconsistent or No Hot Water
If your hot water keeps cutting out—or you’re running out way faster than usual—it could be a sign of sediment buildup or a failing heating element. While some issues can be repaired, if your unit is over six years old, a replacement might be the smarter, more efficient move.
2. It’s More Than 10–12 Years Old
Most water heaters have a lifespan of about 10–12 years. If yours is in that range (check the manufacture's date on the label), it may not be worth putting money into major repairs. A new unit will be more energy-efficient and reliable.
3. Leaks Around the Base
Notice puddles or drips around the base of your water heater? That could mean the inner tank is cracked. While some leaks could be from fittings or valves and can be repaired, a leaking tank itself usually calls for a full replacement—and fast.
4. Rusty or Discolored Water
If the hot water from your taps looks rusty or smells metallic, that could be corrosion inside your water heater tank. This is often a warning that the interior lining is breaking down, and the unit is near the end of its service life.
5. Strange Noises Coming From the Tank
Popping, rumbling, or banging sounds are usually caused by sediment buildup at the bottom of the tank. Over time, this buildup hardens, making your water heater work harder (and noisier) to do its job. Flushing the tank might help, but in older systems, it’s often too late.
What Should You Do Next?
If you’re noticing any of these signs, don’t wait for a complete breakdown. Call your local Austin plumbing experts at Lone Star Plumbing Works. We’ll inspect your system, walk you through your options, and help you decide whether repair or replacement is the best call for your home—and your wallet.
And hey—if it turns out the issue isn’t your water heater at all — whether it’s a clogged line, faulty valve, or another plumbing issue, our team has the tools and know-how to get your system flowing smoothly again.
Need water heater help in Austin?
Schedule a visit with Lone Star Plumbing Works and get the job done right—the Texas way. We're a phone call (512-704-8680) or a click away!






