Water Heater Repair in Hanover, MA
Hanover has the newest housing of any South Shore town we cover, with about one in five homes built since 2000. The town treats its water to remove iron and manganese. If your water heater has stopped or is leaking, call and get a plumber out.
What shapes water heater trouble in Hanover
Newer homes, still on the first heater
About 21% of Hanover homes were built in 2000 or later, and the median home dates from 1978, the newest of the South Shore towns we cover. In many of the 2000s and 2010s homes, the original water heater is now past or near 10 years old.
Signs it's near the end: rusty hot water, a damp ring around the base, or popping noises. A failed part on a younger tank is usually worth repairing.
Treated for iron and manganese
The Town of Hanover says its Pond Street treatment plant is a conventional plant designed to remove iron, manganese, organic color and turbidity from the raw water. If you see dark or rusty sediment in your hot water, a flush is the first step.
Gas and oil
About 50% of Hanover homes heat with gas and 36% with oil. The state's gas provider map lists Eversource for Hanover. NOAA's nearby Hingham station averages about 115 freezing nights a year.
Safe steps for Hanover homes
- Leaking? Close the cold water valve on top of the tank.
- Turn off the gas valve or the breaker for the heater.
- Gas smell? Eversource serves Hanover. Leave the house, call 911 from outside, then report it to Eversource's gas emergency line.
Repair, replacement and emergencies

Water Heater Repair
Gas, electric and tankless repairs, from pilot lights to heating elements.
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No Hot Water
Cold shower this morning? Get the cause found and fixed fast.
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Leaking Water Heater
Water around the tank or a dripping relief valve. Act before it floods.
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Emergency Water Heater Repair
Burst tank, gas smell or water everywhere. Call right away.
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Water Heater Replacement
When repair no longer makes sense, get a new tank or tankless unit.
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Tankless Water Heater Repair
Error codes, lukewarm water and scale buildup on tankless units.
Learn moreHanover water heater questions
Who is the gas company in Hanover, MA?
The state's gas provider map lists Eversource for Hanover. If you smell gas, leave first and call 911 from outside, then report it to Eversource.
My house was built in 2005. Is the water heater original?
Check the label for the manufacture date. If it matches the house, it's around 20 years old and replacement is usually the better value.
Does Hanover treat its water?
Yes. The town's Pond Street plant is designed to remove iron, manganese, color and turbidity.
Do you cover both Hanover ZIP codes?
Yes, 02339 and 02340. Call and we'll confirm your address.
Where these local facts come from
- US Census Bureau, American Community Survey 2020-2024 (via Census Reporter)
- NOAA NCEI, 1991-2020 climate normals
- Town of Hanover, water facilities and treatment
- MassGIS / Mass. DPU, natural gas providers by town (Oct 2025)
Figures are the latest published by each source. Pricing and availability are set by the plumber.
No hot water in Hanover?
Call now for water heater repair or replacement.