Leaking tank right now: do these in order
Water from a failed tank is hot, heavy and can reach a floor drain or finished flooring fast.
- 1
Turn off the fuel
For electric, flip the breaker. For gas, turn the control to off or close the gas valve on the supply line.
- 2
Close the cold supply
The valve above the tank stops new water from filling it. A quarter turn handle should sit across the pipe when closed.
- 3
Open a hot tap upstairs
This lets air in so the tank can drain by gravity if you attach a hose to the drain valve.
- 4
Protect the floor
Move boxes, lay towels and use a wet vacuum on standing water.
- 5
Call the line
Tell the dispatcher the tank size, fuel and where it sits, such as a garage, closet or attic.
Replace or repair: a quick decision frame
| What you see | Age | Usual call |
|---|---|---|
| Water at the bottom of the tank | Any age | Replace, the steel shell has failed |
| Leak from a valve or fitting on top | Under 8 years | Repair the fitting, tank may be fine |
| Electric unit with no heat and no leak | Under 10 years | Test the element or thermostat, likely a repair |
| Rust-colored hot water, rumbling | 10 to 12 years | Replace, sediment and corrosion are advanced |
| Pilot will not stay lit | Under 10 years | Often a thermocouple or gas valve repair |
A tank that leaks from the shell is finished. A fitting leak is another matter.
Sizing the new tank for the people at home
Census QuickFacts for Mauldin lists 2.30 persons per household and an owner-occupied rate of 68.0 percent. Small households often do well with a 40 gallon tank, while homes with three or four people usually want 50 gallons. The average hides your household, so count showers and laundry days.
Most callers own the house, so the replacement choice is yours to make. Renters should call the landlord first, since the heater is typically theirs to replace.
Permit rules for replacing a heater in Mauldin
The City of Mauldin states that a permit is required before you add, alter or replace any plumbing system. Contractors must be licensed, bonded and insured and must hold the permit before starting. Building and Zoning is at 5 E. Butler Rd, (864) 234-3475.
A water heater is plumbing, so ask them how the rule applies to a like-for-like swap. Skipping a required permit can raise questions at resale, so ask before the work starts.
Source type: City of Mauldin Building and Zoning permit page.
Signs the tank is past saving
- Moisture or rust streaks at the base of the tank.
- Hot water that turns brown or smells metallic.
- Banging or rumbling as sediment bakes on the bottom.
- A tank older than about 12 years, even if it still heats.
- A drain pan that keeps collecting water.
A tank that is only 5 or 6 years old and fails often is worth a closer look. See a plumber's repair check first.
What changes water heater replacement cost
Typical U.S. prices for a standard 40 or 50 gallon tank, installed, run roughly $1,000 to $2,500. Tankless costs more. The real number depends on the job and comes from a call.
For a failed tank, insurance may cover resulting water damage but rarely the heater, and policies differ. Call (855) 575-2890 for a clear price before any work.
Same day if the schedule allows
After-hours replacement depends on a heater in stock and a plumber free. The dispatcher tells you what is likely for the evening, without a promised arrival time. If a unit cannot be set tonight, you will know how to wait safely.
Many homes weigh a tankless upgrade at this moment. It is a fair question, but a failed tank at midnight is rarely the time for a gas line redesign. Swap the tank now and plan the upgrade later.
Serving Taylors and nearby towns
Homes in Taylors and across the area use the same line. Ask about water heater installation details if you are changing fuel.
Water heater replacement questions from Mauldin homeowners
Yes. The line runs 24/7, and a same-day or after-hours visit is offered when a plumber and a heater are available. No arrival time is promised. You will be told how to make the tank safe while you wait.
Only if the leak is from a fitting, valve or relief line. Water from the shell means the tank has corroded through, and replacement is the fix.
A like-for-like tank swap is usually a few hours. Changing fuel, venting or location takes longer.
The City of Mauldin requires a permit before you add, alter or replace any plumbing system. Contact Building and Zoning at (864) 234-3475 about your swap.
About 40 gallons for one to three people and 50 gallons for three to four. Large families or big tubs may need more.
Not if it is leaking. Turn off the fuel and the cold supply, put a pan or towels down, and call.
In South Carolina, residential plumbers are licensed through the Residential Builders Commission under LLR. You can check a license on the state lookup.