Water Heater Repair in Harrison, OH
Harrison softens its well water with reverse osmosis, and about 65% of its homes heat with electricity. If your water heater has quit or is leaking, call and get a plumber out.
What shapes water heater trouble in Harrison
Well water, softened at the plant
Harrison pumps from the Great Miami Aquifer through four wells on Thomas Lane and three more across the state line at 153 Harrison-Brookville Road in West Harrison, Indiana. Historically hard, iron-rich water damaged the system, so the city designed a reverse osmosis membrane softening plant, installed in 2022. It treats about 1.5 million gallons a day and is meant to cut both hardness and pipe corrosion.
The city's water page gives the softened target as 40 mg/L and also as 8 grains per gallon. Those two figures don't match (40 mg/L is about 2.3 grains), so test your tap before you set or bypass a home softener. The city says iron is non-detectable, and if water runs brown, run only the bathtub cold tap until it clears, with any softener on bypass.
Inventory online
The 2025 report says none of 30 lead samples was over the action level, with a 90th percentile of 0.7 ppb. The city's service line inventory, listing the material recorded for each address, is linked from its Utilities page.
Newer homes, mostly electric
The median Harrison home was built in 1992, and about 42% date from 2000 or later. About 65% of homes heat with electricity and only 34% with gas. If your water heater is electric and runs lukewarm or goes cold, a failed element or thermostat is a common cause. About 25% of households rent, and about 19% of homes are in buildings with five or more units.
County permits, pans and Saturday checks
Harrison sends plumbing to the Hamilton County Plumbing Division, 513-326-4541. Hamilton County Public Health requires a permit and inspection for every new or replacement water heater. If a store or contractor installs yours, make sure they pull the permit. A homeowner doing the job in their own single-family home may qualify for a homeowner permit.
The county's fact sheet says a drain pan is needed about 9 times out of 10, including in slab homes, attics, finished basements and anywhere a leak could damage floors or walls. It also schedules water heater inspections on the second Saturday of each month for people who can't do a weekday.
Safe steps for Harrison 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? Leave the house, then call 911 and Duke Energy at 800.634.4300 from outside.
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 moreHarrison water heater questions
Who is the gas company in Harrison, OH?
Duke Energy. The city's aggregation program buys supply, but its notice compares prices to Duke's default rate, and Duke handles delivery. If you smell gas, leave first, then call 911 and Duke at 800.634.4300.
Is Harrison's water soft?
It's softened at the plant by reverse osmosis. The city's stated target figures conflict, so test your tap before adjusting a home softener.
Do I need a permit to replace a water heater in Harrison?
Yes. Hamilton County Public Health requires a plumbing permit and inspection for every replacement water heater. Call the plumbing division at 513-326-4541.
Does my water heater need a drain pan?
Usually. Hamilton County says a pan is required about 9 times out of 10, including in slab homes, attics and finished basements.
Where these local facts come from
- US Census Bureau, American Community Survey 2020-2024 (via Census Reporter)
- City of Harrison, Water
- City of Harrison, Drinking Water Consumer Confidence Report for 2025
- Fishbeck, City of Harrison Water Softening Improvements Design and Construction
- City of Harrison, Permits
- Hamilton County Public Health, Water Heaters
- Hamilton County Public Health, Fact Sheet: Replacement Water Heaters
- Hamilton County Public Health, Plumbing Permits and Inspections
- City of Harrison, Why residents receive opt-out letters for the energy aggregation program
- Duke Energy, Natural Gas Services
Figures are the latest published by each source. Pricing and availability are set by the plumber.
No hot water in Harrison?
Call now for water heater repair or replacement.