Where exactly is the water coming from?
Ask the technician to show you whether it is the tank body, a fitting, the pan or a nearby supply line. That single answer settles most of the decision.
Water Heater Repair vs. Replacement
The short answer: if the tank shell is leaking, replace it. If a component failed on a tank that is otherwise sound, repair it. Everything else comes down to age, condition and how the unit has been treated.
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The Short Answer
A water heater that leaks from the body has failed and cannot be repaired — the steel tank is what is corroded, and no part replaces that. A water heater that will not light, will not heat, trips its breaker or runs lukewarm usually has one failed component, and those are ordinarily worth fixing.
Between those two extremes sits the real decision, and it turns on the condition of the tank or exchanger rather than the fault code on the day. Hard Edwards Aquifer water makes that condition question more important here than it would be elsewhere, because sediment and scale are the main things aging these units across the San Marcos area.
Compare What the Inspection Finds
| What the inspection finds | Repair may suit | Replacement may suit |
|---|---|---|
| Where the water is coming from | A fitting, valve or connection on the unit | The tank body itself is weeping or rusting through |
| Age of the unit | Comfortably within its expected service life | At or past the age most tanks reach on hard water |
| What has failed | One identifiable component, such as an element or thermocouple | Several faults stacking up on an already tired unit |
| Condition inside | Sediment that flushes out, or scale that descales | Heavy corrosion, or an exchanger that no longer recovers |
| Hot water supply | Capacity still suits the household | The household has outgrown the tank, or you want to change fuel type |
When Repair Is the Better Choice
Repair makes sense when the tank is intact, the unit is within its normal service life and one component has failed. A thermocouple, an igniter, a heating element, a thermostat or a flow sensor are all ordinary repairs on a heater with years left in it.
It also makes sense when the real problem is neglect rather than failure. A tank that rumbles and runs out early is often just carrying a thick sediment layer; a tankless unit that shuts down mid-shower is frequently scaled rather than broken. Both respond to service. That is the most common finding on water heater repair calls in this area.
If the water around the unit turns out to be a supply line rather than the heater, the job becomes leak detection or burst pipe repair instead, which is a much smaller conversation.
When to Discuss a Replacement
Replacement belongs on the table when the tank itself is leaking, when corrosion has gone past the point a flush helps, or when repairs have started stacking up on a unit that is already old. It is also worth discussing when the household has simply outgrown the tank, or when you are considering a change from a tank to a tankless unit.
If you do replace, ask for the scope in writing: the unit, the fittings, the expansion control, the venting on a gas heater, the pan and drain, and the removal of the old one. A replacement quote that covers only the appliance is not a complete quote.
Newer homes out toward Kyle and Buda often already have tankless units, where descaling history matters more than age. Older homes in the county-seat towns to the east are more likely to be on an aging tank in a closet with limited access, which affects both options.
Questions for the Inspection
What condition is the tank or exchanger in?
Sediment depth, corrosion and scale tell you how much life is left. Ask what was found, not just what was replaced.
What does each option cost, all in?
Get the repair price and the replacement price at the same visit, including fittings, disposal and any venting or code work. Then choose.
Where to Go Next
Read the water heater repair page for what a service visit covers, or our guide to no hot water for the safe checks you can make first. You can also browse all plumbing services or request a visit.
Get a straight answer on your water heater
One visit, both prices, and the evidence for whichever way the decision goes.