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Water Heater Repair in Andover, MA

67% of households in Andover heat with gas. That is the strongest free clue to what kind of water heater is in your basement, and it decides which faults are even possible.

Answer first

67% of Andover households burn gas for heat, and a water heater almost always sits on whatever line the furnace already uses. That is house heating fuel, so read it as a strong hint rather than as a reading of your own tank. A gas unit fails at the pilot, the thermocouple, the gas control valve, or a flue that will not draft.

Source: US Census Bureau, American Community Survey 5-year estimates, table B25040.

HeaterRelay is a referral service, not a contractor. We connect homeowners with independent contractors. Contractors are required to hold whatever credential their state or municipality demands. Every state page sets out who licenses plumbers there and where to check, so you can confirm before work begins. We carry out no work, we sell no equipment, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call.

What Andover runs on

A gas town, and clearly so. The parts that fail on a gas heater are the pilot assembly, the thermocouple that proves the flame, and eventually the gas control valve itself.

Fuel	Share of households
Gas — mains and bottled	67%
Electricity	9%
Fuel oil and kerosene	23%
Everything else	1%

Source: US Census Bureau, American Community Survey 5-year estimates, table B25040 (house heating fuel), 2023 release. Universe: 13,279 occupied housing units in the ZIP code areas covering Andover.

That is 6 points higher than Massachusetts as a whole, which is a real difference rather than a rounding one.

That figure is house heating fuel, not water heater fuel. They correlate strongly, because the same gas line generally serves both, but the Census does not publish the second one and we are not going to pretend it does.

Which one do you have

Check for a flue. Gas heaters vent; electric heaters have nothing to vent and carry element access panels on the side instead. Establish the fuel first; almost every useful question after that depends on it.

Then match what you are seeing: cold from the start, hot then cold, banging and popping, or a leak.

ZIP codes we route in Andover

01810

Nearby towns, and what they burn

Fuel is not uniform across a region. One of the nearby towns we route lead on something other than gas, which is why a diagnosis that fits one town does not travel.

Stoneham 47% gas
Sherborn 60% fuel oil
Randolph 58% gas
Wellesley 64% gas
North Andover 63% gas

Know the fuel and the symptom? That is most of the call.Gas and electric heaters fail in almost entirely different ways, so saying which you have gets you to the right person faster. We route the call and never charge you for it. Not heaters alone — Andover keeps us busy with every kind of plumbing.

Call (866) 871-2892