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Water heater service(858) 465-8561
Serving London, 43140

Water Heater Repair in London, OH

London's water is lime-softened well water, and about 30% of homes here heat with electricity. Replacing a water heater in Madison County takes a permit first. If yours has quit or is leaking, call and get a plumber out.

Call for service(858) 465-8561What's different in London
Cold in Hot out 1 T&P relief valvedrips from high pressure 2 Anode rodused up, tank rusts 3 Dip tubecracks, hot runs out 4 Sedimenthard water, popping 5 Gas valveno heat, no pilot 6 Pilot & thermocouplepilot keeps going out
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London at a glance

What shapes water heater trouble in London

30%

of London homes heat with electricity

Source: US Census Bureau
55%

were built before 1980

Source: US Census Bureau
0 of 20

homes over the lead action level in 2022 testing

Source: Mid-Ohio Regional Water and Sewer District
Free

curbside bulk pickup with 24 hours' notice

Source: City of London
Water

Lime-softened well water

London's water and sewer service comes from the Mid-Ohio Water and Sewer District, which treats water from the city's well field. The wells draw from a sand and gravel aquifer less than 75 feet down, and the water is softened with lime in contact tanks at the London plant. In December 2024 the district installed a new lime slaker there, the equipment that mixes lime with water to react with the calcium and magnesium that make water hard.

Softened water is easier on a tank, but sediment still settles over time, so a heater that rumbles or pops is worth a flush. In the 2022 lead testing listed in the district's 2024 report, none of 20 homes was over the action level.

Permits

A permit before the new heater goes in

Madison County Public Health says a plumbing permit is required before a replacement water heater is installed. Permits are bought from Madison County Public Health, and anyone doing plumbing in the county must register there. Homeowners who live in the house can buy a residential permit for their own work.

Franklin County Public Health handles plumbing inspections and plan reviews for Madison County. Its inspector for the county, Mike Gaus, takes calls weekdays from 7 a.m. to 3:30 p.m. at 614-525-6667.

Trash

Rumpke and free bulk pickup

Rumpke took over London's trash and recycling on August 1, 2026, at $20.75 a month for residential service, billed every three months. The city's old sanitation drop-off site has closed, but Rumpke picks up bulk items at the curb for free. You have to call or email Rumpke at least 24 hours before your regular pickup day, or the item stays at the curb.

Homes

Older homes, plenty of electric heat

The median London home was built in 1974, and about 23% date from before 1940. About 69% of homes heat with gas and 30% with electricity, and about 36% of households rent. On an electric heater, no hot water often means a failed element or a tripped high-limit reset. On a gas heater, check whether the pilot is lit.

Before the plumber arrives

Safe steps for London homes

  1. Leaking? Close the cold water valve on top of the tank.
  2. Turn off the gas valve or the breaker for the heater.
  3. Gas smell? Leave the house, then call 911 and your gas company from outside. Use the emergency number on your gas bill; for Columbia Gas of Ohio, it's 1-800-344-4077.
Service area

Where we take calls

London, Madison County, ZIP codes 43140. Not sure your address is covered? Call and we'll check.

Nearby towns

Services in London

Repair, replacement and emergencies

Plumber using a pipe wrench on the gas line of a tank water heater

Water Heater Repair

Gas, electric and tankless repairs, from pilot lights to heating elements.

Learn moreHot water running with steam from a copper kitchen faucet after a water heater repair

No Hot Water

Cold shower this morning? Get the cause found and fixed fast.

Learn moreTank water heater leaking water from its base onto a basement floor

Leaking Water Heater

Water around the tank or a dripping relief valve. Act before it floods.

Learn morePlumber's tool bag, pipe wrenches and copper fittings beside a water heater

Emergency Water Heater Repair

Burst tank, gas smell or water everywhere. Call right away.

Learn morePlumber wheeling a new tank water heater through a home hallway on a hand truck

Water Heater Replacement

When repair no longer makes sense, get a new tank or tankless unit.

Learn moreWall-mounted tankless water heater with copper and brass water and gas lines

Tankless Water Heater Repair

Error codes, lukewarm water and scale buildup on tankless units.

Learn more
Questions

London water heater questions

Who is the gas company in London, OH?

Check your bill. Madison County lists Columbia Gas of Ohio and Madison Energy among the natural gas companies in the county. If you smell gas, leave first and call 911 from outside.

Do I need a permit to replace a water heater in London?

Yes. Madison County Public Health requires a plumbing permit before a replacement water heater is installed. Homeowners living in the house can buy one.

Is London's water softened?

Yes. The Mid-Ohio Water and Sewer District softens London's well water with lime at the London treatment plant.

How do I get rid of an old water heater in London?

Rumpke offers free curbside bulk pickup. Call or email Rumpke at least 24 hours before your regular pickup day.

Sources

Where these local facts come from

Figures are the latest published by each source. Pricing and availability are set by the plumber.

No hot water in London?

Call now for water heater repair or replacement.

Call for service(858) 465-8561
Call (858) 465-8561