Is Your Water Heater Too Noisy?

Diagnosis & Repair

Having a noisy water heater is more than just a nuisance—it's a warning sign that professional water heater service may be required. Understanding the source of the noise is key to finding the right solution.

​

Rumbling Sounds: The Problem of Sediment Buildup

The most common complaint is a distinct rumbling water heater noise. This sound typically indicates an excessive accumulation of sediment (mineral deposits) at the bottom of the tank, a common issue as water heaters age and especially if the tank has not been regularly drained.

• The Cause: The rumbling is the sound of superheated water escaping from beneath the hardened layer of sediment.

• Efficiency Loss: While this condition is generally not dangerous, it's a clear indicator that your water heater has lost significant efficiency. Less heat transfers to the water and more escapes through the chimney flue.

• Tank Lifespan: Overheating the bottom of the tank due to sediment insulation dramatically shortens the lifespan of the water heater and can lead to premature failure.

• Hard Water Areas: In regions known for hard water, regular water heater flushing can extend the unit's life and improve energy efficiency.

• The Fix: If the solidified sediment can be successfully removed through a professional flush, the noise and inefficiency will resolve. If the sediment buildup is too extreme, a complete water heater replacement may be the necessary solution.

• ​

High-Pitched Noise & Pressure Issues

A high-pitched noise or whistling from your unit often points to high incoming water pressure. This is a serious plumbing problem that requires immediate diagnosis and pressure-reducing valve (PRV) repair.

• Safety Valve: All water heaters are equipped with a Temperature/Pressure Relief (T&P) safety valve designed to open and release water if the temperature or pressure inside the tank becomes dangerously high.

• Risk: Long-term excess pressure in the tank or plumbing system can cause leaks, cracks, and—in extremely rare cases—catastrophic failure or a burst water heater. Addressing this problem quickly is essential for plumbing system safety.

• ​

Emergency Expert Water Heater Service

Our water heater experts are available to quickly diagnose and solve your noisy water heater problems.

Call (864) 214-6712 now to schedule an appointment or to speak with a water heater specialist immediately! We are ready to provide expert water heater repair and installation services.