Water Heater Repair in South Windsor, CT
Half of South Windsor homes heat with gas, the most of any town we cover in Connecticut, and the town is split between two water systems. If your water heater has quit or is leaking, call and get a plumber out.
What shapes water heater trouble in South Windsor
A gas-heated town
About 51% of South Windsor homes heat with gas and 29% with oil. Eversource lists South Windsor among its gas towns. Gas water heaters usually fail at the thermocouple, the pilot or the gas control valve. If the pilot won't stay lit, the thermocouple is the first thing to check.
Two water systems
The town posts a street list for customers of the MDC, whose water comes from the Barkhamsted and Nepaug reservoirs and is treated in West Hartford and Bloomfield. Connecticut Water's 2025 report lists South Windsor in its Northern Western System, which draws from Shenipsit Lake and several wellfields. Your bill tells you which one you have.
1980 homes on later heaters
The median South Windsor home was built in 1980, and about 17% were built since 2000. Many of those homes have already replaced the original heater at least once. If yours is past 10 years and showing rust or a damp base, start planning a replacement.
Safe steps for South Windsor 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 South Windsor. Leave the house, call 911 from outside, then Eversource at 877-944-5325.
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 moreSouth Windsor water heater questions
Who is the gas company in South Windsor, CT?
Eversource lists South Windsor among its Connecticut gas towns. If you smell gas, leave first, call 911 from outside, then Eversource at 877-944-5325.
Who supplies water in South Windsor?
Some streets are on the MDC and others on Connecticut Water. The town posts an MDC street list, and your water bill will say.
My gas water heater's pilot keeps going out. What's wrong?
Often a worn thermocouple, a draft or a dirty pilot. If it won't stay lit after one relight, call.
How cold does it get in South Windsor?
NOAA's Bradley airport station averages about 126 nights a year at or below freezing, with January lows near 19°F.
Where these local facts come from
- US Census Bureau, American Community Survey 2020-2024 (via Census Reporter)
- NOAA NCEI, 1991-2020 climate normals
- The MDC, Connecticut drinking water
- Town of South Windsor, MDC water street listing
- Connecticut Water, 2025 Northern Western System water quality report
- Eversource, communities we serve (Connecticut gas towns)
- Eversource, report a gas leak (CT)
Figures are the latest published by each source. Pricing and availability are set by the plumber.
No hot water in South Windsor?
Call now for water heater repair or replacement.