Water Heater Repair

Few household problems get your attention faster than a cold shower. When your water heater quits — or starts leaking, banging, or running out of hot water halfway through a wash — you need someone who can pinpoint the real problem quickly and tell you straight whether it's worth fixing. That's exactly what we do. Quality Home Heating & Air has repaired water heaters across the South Shore and South Coast since 1988, and we service every common type: gas and electric tank models, and tankless (on-demand) units.

A water heater is a system, not just a tank. Loss of hot water can come from a failed heating element or thermostat on an electric unit, a pilot or gas-valve issue on a gas unit, a tripped high-limit, or years of sediment insulating the burner from the water. A leak might be a simple valve or fitting — or a corroded tank that's reached the end of the road. Getting the diagnosis right is what separates a $200 fix from an expensive guess, and it's where our decades of hands-on experience pay off for you.

We focus on water heaters specifically — we're not a general plumbing company, and we won't pad your invoice with work you don't need. We'll find the fault, explain it in plain English, give you upfront pricing, and recommend the repair only when it genuinely makes sense. When a unit is too old or too far gone to fix economically, we'll tell you that too, and walk you through replacement options and financing.

Sediment is the number-one enemy of a tank water heater in our area. Minerals settle to the bottom of the tank and bake into a hard crust over the burner or around the lower element. That layer insulates the water from the heat source — so the unit works harder, recovers more slowly, and runs out of hot water sooner — and the popping or rumbling you hear is water trying to boil its way up through the sediment. Left alone, that overheated layer accelerates tank corrosion and shortens the unit's life.

The anode rod is the other big one. Every tank has a sacrificial anode rod that corrodes on purpose to protect the steel tank from rust. Once that rod is used up — often within a few years on our water — the tank itself starts to corrode from the inside out. That's what's behind rusty or discolored hot water, and eventually a tank leak. Checking and replacing the anode rod is one of the most cost-effective repairs there is on a unit that's otherwise sound.

After that it comes down to the controls and heat source. On electric units, a burned-out heating element or a failed thermostat is the usual cause of no hot water or lukewarm water, and a tripped high-limit reset points to an underlying fault worth finding. On gas units, a dirty or failing thermocouple/flame sensor, a clogged pilot, or a faulty gas valve is typically why the pilot won't stay lit or the burner won't fire. On tankless units, scale buildup, a flow-sensor issue, or ignition faults are the common culprits — most of which a proper diagnosis and descaling can resolve.