Water Heater Making Noise — Sediment or Boiling
Back to all problems
Common Water Issue in BC

Water Heater Making Noise — Sediment or Boiling

Popping, rumbling, or hissing from a water heater indicates sediment buildup or overheating. BC homeowners should address this before tank failure.

Possible Causes

  • •Sediment buildup on bottom of tank causing popping sounds
  • •Overheating from failed thermostat causing boiling sounds
  • •Scale buildup on heating elements in electric heaters
  • •Expansion and contraction of tank from temperature changes
  • •Water hammer in supply lines amplified by tank

Recommended Steps

  • 1Flush water heater to remove sediment
  • 2Check thermostat settings and operation
  • 3If noise persists after flushing, heating elements may have scale buildup
  • 4Inspect T&P valve for discharge indicating overheating
  • 5Call professional if noise continues — tank may need replacement

Related Services

Need Professional Help?

Don't let a small leak become a big problem. Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for expert diagnosis.