Charleston, SC · plumbing service
Water Heater Replacement in Charleston, SC
Newer suburban homes from the 1990s–2000s are replacing original heaters. Call to be connected with an independent, licensed plumber who handles water heater replacement in Charleston; they diagnose the problem and quote the work before starting.
By calling, you agree to be connected with an independent plumbing contractor serving your area. Calls may be recorded for quality and training. The call and referral are free, and you are never obligated to hire.- Licensed local plumbers
- Free call and referral
- You approve the quote first
Common signs
- Water around the tank base
- rusty hot water
- a tank past 10 years
Water Heater Replacement services in Charleston
- Water Heater ReplacementReplacing a failing or leaking tank heater.
- Water Heater RepairNo hot water, leaking tank, strange noises or uneven temperature.
- Tankless Water HeatersTankless installation, descaling and repair.
- Water Heater MaintenanceFlushing, anode checks and safety-valve testing.
- Gas Line Installation and RepairGas piping for appliances and gas leak repairs.
Problems water heater replacement fixes
- A leaking tank
- A tank past roughly 10 to 12 years with frequent repairs
- Rusty hot water or sediment noise
- Not enough hot water for the household
Why water heater replacement comes up in Charleston
Newer suburban homes from the 1990s–2000s are replacing original heaters.
54% of Charleston's occupied homes are owner-occupied. If you rent, the water heater is normally the landlord's to repair or replace, so report a leak to them in writing as well as calling for help.
- Typical home built
- 1996
- Homes before 1980
- 34%
- Water hardness
- 3.4 gpg
- soft
- Winter freezes
- Occasional hard freezes
How the work is done
- 1Size the replacementMatch capacity and fuel to the household, or compare tankless.
- 2PermitMany cities require a permit and inspection for water heater replacement.
- 3Remove and installDrain and remove the old tank; install with code-required venting, relief valve piping and, where required, an expansion tank.
- 4Test and explainCheck for leaks and correct temperature, and show where the shutoffs are.
What affects the price
The plumbing company sets the price after seeing the job; ask for it in writing before work starts.
- Tank or tankless, gas or electric
- Capacity
- Code updates such as an expansion tank, venting or a drain pan
- Location and access
- Permit and haul-away
Plumbing work we connect Charleston homeowners with
Water Heater RepairNo hot water, leaking tank, strange noises or uneven temperature. Tankless Water HeatersTankless installation, descaling and repair. Water Heater MaintenanceFlushing, anode checks and safety-valve testing. Gas Line Installation and RepairGas piping for appliances and gas leak repairs.
Water Heater Replacement in Charleston: questions
Do I need a city permit to replace a water heater in Charleston?
The City of Charleston's Plumbing Permit Application lists water heaters as permitted work and requires the contractor's city business license and SC license numbers. Contact the Permit Center at 843-577-5550 with questions.
Is a gas water heater swap in Charleston handled under a different permit?
Yes. Charleston uses a separate Gas Permit Application with a water heater option, and a Pre-Service inspection is needed if the gas meter must be reactivated or newly installed.
Why is water heater replacement a common call in Charleston?
Newer suburban homes from the 1990s–2000s are replacing original heaters.
How old are most homes in Charleston?
The median home in Charleston was built in 1996, and 34% of homes were built before 1980 (U.S. Census Bureau, American Community Survey).
How hard is Charleston's water?
About 3.4 grains per gallon (soft), per Charleston Water System, FAQs.
Does water heater replacement in Charleston need a permit?
Usually, when piping changes; the plumber normally pulls it.
When is a leaking water heater an emergency in Charleston?
A leak from the tank itself won't stop and usually means replacement; turn off the gas or power and the cold-water valve, then call. In Charleston: newer suburban homes from the 1990s–2000s are replacing original heaters.
Who supplies water in Charleston?
Charleston Water System. Past the meter, plumbing is the owner's.
Water Heater Replacement near Charleston
More plumbing services in Charleston
- Sewer Line Repair in Charleston, SCSewer Line Repair in Charleston, SC: old laterals in historic neighborhoods crack and settle.
- Sewer Backup Cleanup in Charleston, SCSewer Backup Cleanup in Charleston, SC: king tides, heavy rain and hurricanes overwhelm low-lying drainage.
- Emergency Plumbing in Charleston, SCPlumbing emergency in Charleston, SC? Who to call (Charleston Water System or a plumber), what to shut off first, and the emergencies most likely in Charleston homes.
- All plumbing services in CharlestonEvery plumbing service available to Charleston homes.
Local rules and details for Charleston
Charleston facts behind this page
For water heater replacement that changes or replaces piping, Charleston's plumbing code and permit rules apply (see the source below). Ask the plumber whether your job needs a permit and who pulls it; a licensed plumber normally does.
- The median home in Charleston was built in 1996. [1]
- About 34% of Charleston's housing units were built before 1980, the era of galvanized steel supply pipe, cast iron drains and clay sewer laterals. [1]
- Charleston Water System treats water from the Bushy Park Reservoir (about 90%) and the Edisto River (about 10%) at the Hanahan plant; average hardness is about 58 ppm (3.4 grains per gallon), moderately soft. [2]
- Plumbing in Charleston follows the 2021 International Plumbing Code with South Carolina modifications, mandatory statewide since January 1, 2023. [3]
- The City of Charleston Permit Center at 2 George St. (843-577-5550, Permits@charleston-sc.gov) issues trade permits for plumbing work. Its Plumbing Permit Application includes a Water Heater checkbox and an inspections table, asks for the contractor's City business license and SC LLR license numbers, and notes that work requiring the utility to shut off service must be coordinated with City Building Inspections. [4]
- For gas-fired units, the City of Charleston uses a separate Gas Permit Application, which also has a Water Heater checkbox. The form explains that a Pre-Service inspection is required to reactivate a gas meter or install a new one, including a meter locked off or disconnected for more than a year. Applications go through the City Permit Center at 2 George St. [5]
Charleston rules and programs for water heater replacement
- The City of Charleston Permit Center at 2 George St. (843-577-5550, Permits@charleston-sc.gov) issues trade permits for plumbing work. Its Plumbing Permit Application includes a Water Heater checkbox and an inspections table, asks for the contractor's City business license and SC LLR license numbers, and notes that work requiring the utility to shut off service must be coordinated with City Building Inspections. [4]
- For gas-fired units, the City of Charleston uses a separate Gas Permit Application, which also has a Water Heater checkbox. The form explains that a Pre-Service inspection is required to reactivate a gas meter or install a new one, including a meter locked off or disconnected for more than a year. Applications go through the City Permit Center at 2 George St. [5]
Other common plumbing calls in Charleston
- Sewer Backup: king tides, heavy rain and hurricanes overwhelm low-lying drainage.
- Sewer Line Repair: old laterals in historic neighborhoods crack and settle.
Safety first
Leaking tank: shut its power or gas and the cold-water valve.
Sources (5)
- U.S. Census Bureau, ACS 2024 1-year (B25035) · checked 2026-10-01
- Charleston Water System, FAQs · checked 2026-10-01
- SC LLR, Building Codes in Effect for South Carolina · checked 2026-10-01
- City of Charleston Permit Center, Plumbing Permit Application · checked 2026-10-20
- City of Charleston Permit Center, Gas Permit Application · checked 2026-10-20