Your water heater quietly does its job every day — until it doesn't. Because it lives in a garage or closet, most homeowners never think about it until there's no hot water or water on the floor.
As water heater specialists serving Palm City, Stuart, Jupiter, and the rest of the Treasure Coast and Palm Beach County, we replace dozens of units every year. Here are the signs that tell us a heater is near the end of its life.
1. The unit is more than 8–12 years old
A conventional tank water heater typically lasts 8 to 12 years. Tankless units can last 20+ years with maintenance. Florida's hard water tends to shorten that lifespan because mineral scale builds up faster.
You can find the age on the manufacturer's label — the serial number usually encodes the month and year of manufacture. If yours is past the 10-year mark, start budgeting for a replacement.
2. Rusty or discolored hot water
If only the hot water comes out brown, tinted, or metallic-tasting, rust is forming inside the tank. Once a steel tank starts corroding from the inside, a leak is usually not far behind.
3. Rumbling, popping, or banging noises
Those sounds are sediment that has hardened on the bottom of the tank. The heater has to work harder (and burn more energy) to heat through the scale layer, which accelerates wear. An annual flush helps, but loud rumbling on an older unit often means it's time.
4. Water pooling around the base
Any moisture around the tank deserves immediate attention. It may be a fitting or the temperature-and-pressure (T&P) valve — both repairable — or a cracked tank, which is not. Don't wait on this one in our humid climate.
5. Not enough hot water (or it runs out fast)
If showers turn cold faster than they used to, sediment is eating into your tank's usable capacity, or a heating element/burner is failing. Sometimes this is a simple repair; on an aging tank it signals replacement.
6. Higher energy bills
A heater fighting through sediment and corrosion uses more energy to deliver the same hot water. A creeping electric or gas bill with no change in usage can point back to an inefficient, aging unit.
7. Frequent repairs
When repair costs start adding up to a meaningful share of a new unit, replacement is the smarter long-term move — especially if the warranty has expired.
- ✓Replacing elements or thermocouples more than once
- ✓Repeated pilot-light or igniter problems
- ✓Leaking valves or fittings that keep coming back
Questions? Talk to a Local Plumber
Serving the Treasure Coast & Palm Beach County 24/7. Licensed & insured · CFC #1432178.
📞 772-382-9590Frequently Asked Questions
How long does a water heater last in Florida?+
Tank water heaters in Florida typically last 8–12 years, often on the shorter end due to hard water and mineral scale. Tankless units can last 20+ years with regular descaling.
Should I repair or replace my water heater?+
As a rule of thumb, if your unit is under 8 years old and the repair is minor, repair it. If it's over 10 years old, leaking from the tank, or needs frequent repairs, replacement is usually more cost-effective.