7 Signs You Need a New Water Heater (La Mirada Guide)
Quick Answer
If your water heater is 10+ years old, leaks from the tank, or has rusty water, replace it. Most other issues like a bad pilot light, thermostat, or heating element can be repaired for under $400.
Most water heaters last 8-12 years. But you don't need to wait until it floods your garage. Here's how to tell when it's time, and when you can keep going.
The 7 signs
- Age 10+ years. Past 10 years, a tank is on borrowed time. Replace before it leaks.
- Rusty or smelly hot water. Means the inside of the tank is corroding.
- Leak at the tank itself (not the pipes). The tank is done. Replace.
- Loud popping or rumbling. Sediment buildup. A flush helps short-term, but it's a sign the tank is aging.
- Lukewarm only. Could be the dip tube or element. Repair worth trying once.
- Pilot won't stay lit. Thermocouple. Usually a $200 fix.
- Tankless throwing error codes repeatedly. Often a venting or scale issue. Flush first, replace if it persists.
Repair vs. Replace: the simple rule
If the repair is more than 50% of the cost of a new heater, replace. If your tank is over 10 years old, replace. Otherwise, repair is usually the right call.
Tank or tankless for your next one?
| Tank | Tankless | |
|---|---|---|
| Up-front cost | $1,649 to $2,499 | $3,995 to $6,995 |
| Lifespan | 8-12 years | 20+ years |
| Hot water | Limited by tank | Endless |
| Energy cost | Higher | 30%+ lower |
For most La Mirada families, tankless pays back in 8-10 years through energy savings. And you never run out of hot water during a long shower.