If you’re wondering when to replace your water heater, you’re not alone. It’s one of the most common plumbing questions we get—and for good reason. Waiting too long to replace a failing water heater can lead to serious problems, including costly water damage.
The Insurance Institute for Business and Home Safety has reported that water heater failures cost an average of $4,444 per incident after the deductible. So if your water heater is not heating like it used to, or you're hearing strange noises, now is the time to start paying attention in order to get ahead of the game.
How Long Should a Water Heater Last?
A standard tank water heater typically lasts between 6 to 12 years, depending on usage, maintenance, and water quality. Tankless water heaters, on the other hand, can last up to 20 years with proper care.
Still, age alone isn’t the only factor to consider. You could have a 15-year-old water heater that’s still going strong—or a 6-year-old unit that’s already showing signs of failure. That’s why it’s important to know what to look for.
Troubleshooting Your Hot Water Heater: 2 Clear Signs It May Be Time to Replace
1. Rusty or Discolored Hot Water
If your hot water comes out looking rusty or brown, it could be a sign that your water heater tank is deteriorating from the inside.
However, other causes of rusty water include:
- Corroded galvanized plumbing
- Issues with the municipal water supply
Quick test: Turn on a cold water tap. If the cold water is clear but the hot water is discolored, the problem is likely with your water heater—and it may be time to replace it.
2. Water Heater Tank Is Leaking
If you notice water pooling around the base of your water heater or visible moisture on the tank, that’s a major red flag. A leaking tank almost always means a replacement is needed.
It's important to note that not all leaks mean a full replacement. If the leak is coming from a valve or pipe connection—like the drain spigot or cold water intake—a plumber may be able to repair it. But if the leak is from the tank itself, it’s time to replace the water heater ASAP.
Water Heater Making a Popping Noise? Here’s What It Means
A popping or rumbling noise coming from your water heater is usually a sign of sediment buildup. As mineral deposits settle at the bottom of the tank, they trap water beneath them. When that water heats up, it causes pressure that can create popping sounds.
While not always urgent, this issue can lead to heating element damage or tank deterioration over time. Flushing your water heater annually as a part of regular water heater maintenance helps prevent this problem.
Gas Water Heater Not Working? Start Here
If your gas water heater isn’t working, the issue could be as simple as a tripped pilot light or as complex as a faulty gas valve.
Common troubleshooting steps include:
- Checking the pilot light and relighting if necessary
- Inspecting the thermostat
- Ensuring there’s no sediment blocking the burner
- Verifying that the gas supply is turned on
When in doubt, it’s best to call a licensed plumber to safely assess and repair the unit.
Tank vs. Tankless Water Heater: What’s Right for Your Home?
If you’re due for a replacement, it’s worth comparing a traditional tank water heater with a tankless system.
Tank Water Heaters
- Store hot water in a tank (usually 40-80 gallons)
- Lower upfront cost
- Higher standby energy loss
- 6–12 year lifespan
Tankless Water Heaters
- Enjoy continuous hot water—no storage tank needed.
- Higher upfront cost but longer lifespan (up to 20 years)
- More energy efficient
- Great for families who need continuous hot water
Not sure which option is best? Our team at Pippin Brothers can help you weigh the pros and cons based on your household size, usage, and budget using one of many brands we trust.
How to Maintain Your Water Heater for Longer Life
Even if your water heater is 10+ years old, you can extend its life with proper maintenance:
- Flush and drain the tank at least once a year to remove sediment buildup.
- Check the anode rod every few years—it helps prevent corrosion.
- Schedule professional water heater maintenance annually for a thorough inspection.
Need Water Heater Help in Lawton, OK?
Whether your water heater is not heating, making strange noises, or you're simply wondering when to replace your hot water heater, Pippin Brothers is here to help. We proudly serve homeowners in Lawton, Fort Sill, and Duncan, Oklahoma, and we’ll help you troubleshoot, repair, or replace any make or model—and make sure you always have hot water when you need it.