Most traditional water heaters last 8–12 years. But their lifespan can shorten without proper care. Knowing the early signs of trouble can help you avoid sudden breakdowns, water damage, and energy waste.
If you’re noticing changes in performance, Monroe Home Solutions can help. Here are five telltale signs your water heater may be nearing the end of its lifespan — and when it’s time to call in a professional.
1. Your Water Isn’t Staying Hot Like It Used To
A slow decline in water temperature or shorter hot-water supply is one of the first red flags. As water heaters age, sediment builds up inside the tank. That buildup forces the system to work harder to heat water, reducing both efficiency and capacity.
If you’re experiencing lukewarm showers or inconsistent temperatures, it may be time to have your system evaluated by a Monroe tech. We’ll determine whether a repair will stretch its lifespan or if a replacement is the safer investment.
2. Rumbling, Popping, or Knocking Sounds
Water heaters aren’t silent, but loud banging or rumbling typically means sediment has hardened at the bottom of the tank. As the burner heats the water, trapped sediment shifts and makes noise.
Over time, this strain can cause cracks, overheating, or early system failure. If you hear unusual sounds, it’s best to have a professional diagnose the issue before it turns into a leak or full breakdown.
3. Water Discoloration or Rust
Murky, rusty, or yellow-tinted hot water is a warning sign you shouldn’t ignore. Corrosion inside the tank or failing anode rods can discolor your water. In some cases, you may even notice rust around the tank itself.
Once corrosion sets in, replacement is usually the only safe option. Rust can quickly grow into a leak, causing damage to your floors or basement. Monroe’s technicians will let you know whether the issue is inside the heater or elsewhere in your plumbing.
4. Water Heater Leaks or Moisture Around the Tank
Even small drips matter. Any puddling, moisture, or condensation around the water heater indicates a brewing problem. Over time, metal expands and contracts from heat, which can weaken the tank and lead to cracks.
A leaking water heater is an urgent issue. Tanks can fail suddenly and release dozens of gallons of water into your home. If you spot moisture near the base of the unit, schedule a visit right away to prevent damage.
5. Your System Is More Than 10 Years Old
Age alone doesn’t guarantee failure, but once your unit passes the 10-year mark, repairs become more frequent and less cost-effective. Older systems are also less energy-efficient, costing you more on utility bills over time.
If your water heater is a decade or older, it may be worth having Monroe perform an inspection to help you plan ahead. Our annual maintenance programs are designed to extend system lifespan and help you avoid surprise breakdowns.
Frequently Asked Questions for Water Heater Health
- How long does a water heater typically last?
Most models last 8–12 years, depending on maintenance and usage. - Why does my water smell metallic or look cloudy?
This often indicates corrosion inside the tank. - Can my water heater be repaired instead of replaced?
Sometimes. Monroe can assess whether a repair is safe and cost-effective based on your system’s age and condition.
Call Monroe Before a Small Issue Becomes a Big Problem
Your water heater plays a major role in your home’s comfort. If you’re seeing one or more of these warning signs, it’s time to call Monroe Home Solutions. We’ll inspect your system, walk you through your options, and ensure your home stays safe, efficient, and comfortable year-round here in Metrowest, MA.