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Most Wausau homeowners don't think about their water heater until it fails — and by then the timing is never convenient. After 61 years of replacing water heaters across Marathon County, I've learned to recognize the warning signs long before a cold-water wake-up call. Here's what to watch for.
The average conventional tank water heater lasts 8–12 years. If yours is 10+ years old, start planning for replacement rather than waiting for failure. Gas water heaters often last slightly longer than electric; tankless units can last 15–20 years with proper maintenance.
Rusty hot water (but not cold water) usually indicates the inside of the tank is corroding. This is a serious sign — a corroding tank is at risk of failing. Sometimes a deteriorated anode rod is the cause and is replaceable; but on older tanks, replacement is the right call.
That banging, rumbling, or popping sound during heating is sediment buildup on the heating element. Over time, sediment reduces efficiency and can crack the heating element or tank lining. Annual flushing can delay this — but if your heater is already noisy, it may be past saving.
Moisture or pooling water around your water heater is serious. Metal expands and contracts over years of heating cycles — this can cause microscopic fractures that become leaks. A leaking tank cannot be repaired; it must be replaced. Call (715) 675-2000 immediately — a failed tank can dump 40–80 gallons on your floor.
If your showers are going cold faster than they used to, the first cause to check is sediment reducing effective tank capacity. Second cause: a failed heating element (electric) or burner issue (gas). If servicing doesn't resolve it, the tank may have lost effective capacity beyond recovery.
A failing water heater works harder to heat water — sediment acts as insulation between the heating element and the water, reducing efficiency. If your gas or electric bill is creeping up without obvious explanation, your water heater may be the culprit.
A pilot light that won't stay lit usually points to a bad thermocouple — a $20 part that Genrich Plumbing replaces quickly. But on a 10+ year old heater, a thermocouple failure is often a signal that other components are nearing end of life too.
A water heater that needs a second or third repair is costing you in parts, labor, and inconvenience. The money spent on repeated repairs almost always exceeds the cost of replacement — especially if the unit is over 8 years old.
61 years serving Wausau and Marathon County. Free estimates. Master Plumber on every job.
Standard gas or electric tank water heaters typically last 8–12 years in Wisconsin homes. Hard water can reduce lifespan. Annual flushing extends life. Tankless water heaters last 15–20 years with proper maintenance.
A tank that is leaking from the tank body (not from fittings or valves) cannot be repaired and must be replaced. A leaking pressure relief valve or supply connection can often be repaired. Call Genrich Plumbing at (715) 675-2000 to assess.
Typical water heater replacement in Wausau runs $800–$1,600 installed depending on tank size (40–50 gallon), fuel type (gas vs. electric), and any code upgrades required. Genrich Plumbing provides free upfront estimates.
Bob answers personally. Expect a same-day callback Mon–Fri 7 AM–7 PM.
