Where exactly is the water coming from?
Ask to be shown the source. A weeping relief valve and a rusted tank need completely different work and completely different money.
The short answer: if the tank is leaking, replace it. If a part failed and the tank is sound, repair it. Emergency Plumber Carrollton tests the unit before recommending either.
A storage water heater is a steel tank with a glass lining. Once that lining fails and the steel rusts through, no part will fix it, and water on the floor around the base of the tank usually means exactly that. Everything else on a heater is a component: thermostats, elements, a gas control valve, a pilot assembly, a relief valve, a drain valve. Those are repairs.
So the first job at the visit is establishing where the water is coming from. Water can drip from the relief valve, from the cold inlet connection, from a fitting above the tank or from a condensate line, and all of those look like a leaking heater from across the room while being far smaller jobs.
| What the inspection finds | Repair may suit | Replacement may suit |
|---|---|---|
| Age of the unit | Well inside its expected service life | At or past the age where tanks commonly fail |
| Where the water is coming from | A valve, fitting or connection above the tank | The tank body itself is weeping or rusted through |
| What the fault is | Thermostat, element, gas control or pilot assembly | Several parts failing in the same year |
| Sediment and hard water | Flushing restores normal heating and recovery | Heavy scale with a tank already corroding inside |
| Capacity for the household | The unit still supplies the house adequately | You have run short of hot water for years |
| Parts | Replacement parts are available for the model | Parts are discontinued or not worth the labor |
Repair makes sense when the tank is sound and one component has failed. An electric heater that gives lukewarm water often has one dead element. A gas heater that will not stay lit often needs a thermocouple or pilot assembly. A tank that rumbles and runs out early is frequently just full of sediment, and North Texas hard water guarantees that sediment builds up.
Age alone is not a reason to replace a working heater. A well-maintained unit that has been flushed is worth keeping. What matters is whether the tank is intact and whether parts are still available for the model.
See water heater repair for what the visit covers, and no hot water: what to check first for the things you can safely look at before calling.
Replace when the tank is leaking, when the same unit has needed several repairs in a short space of time, or when parts are no longer made for it. Replace too when the heater has never kept up with the household and a repair would only restore performance that was never adequate.
A replacement quote should cover more than the unit: the connections, the shutoff valve, the relief valve and discharge line, the drain pan and its drain, and the venting on a gas heater. On a heater in an upstairs closet or an attic, the pan and drain line matter as much as the tank, because that is what protects the ceiling below.
If the water turns out to be coming from the pipe feeding the heater, that is burst pipe repair instead. If it is appearing somewhere else entirely, start with leak detection. Coverage is listed on the service areas page.
Ask to be shown the source. A weeping relief valve and a rusted tank need completely different work and completely different money.
Ask which part failed, whether it is available, and what else on the unit is close to the end of its life.
Ask whether the quote covers the pan, the drain line, the shutoff, the relief valve, venting and removal of the old unit.
Tell us what is leaking, backing up or not working so the right visit can be planned.