My water heater is leaking from the bottom — do I need to replace it?

A leak from the very bottom of the tank — not the drain valve, but the tank body itself — almost always means internal corrosion. Tank-body leaks cannot be patched. You need a replacement. Call a plumber right away; a failing tank can flood quickly.

How long do water heaters last in Central Texas?

Most tank water heaters last 8 to 12 years. The hard water in the Pflugerville and Round Rock area speeds up sediment buildup and anode rod depletion, which shortens that window. Tankless units typically last 18 to 25 years with proper servicing.

Can I keep using my water heater while it is leaking?

It depends on where it is leaking. A loose temperature and pressure (T&P) relief valve fitting or a dripping drain valve can sometimes wait a few hours until a plumber arrives. But any leak from the tank body or connections pooling on the floor is a sign you should shut off the water supply and the gas or breaker immediately.

What does it cost to repair vs. replace a water heater?

Minor repairs — replacing a T&P valve, thermostat, or heating element — typically run $150 to $400. A full tank replacement in Central Texas generally runs $900 to $1,800 installed, depending on unit size and fuel type. If your unit is over 10 years old, replacement usually makes more financial sense than repeated repairs.

Is a leaking water heater dangerous?

Yes in two ways. The standing water creates a slip hazard and encourages mold growth. On gas units, a flood near the burner can also extinguish the pilot and allow gas to accumulate. Shut off the supply line and cut power or gas at the first sign of significant leaking.

Does Alberto Plumbing offer same-day water heater service in Pflugerville?

Yes. Alberto Plumbing offers same-day water heater diagnosis, repair, and replacement throughout Pflugerville, Round Rock, Austin, and Hutto. Call (512) 429-6933 to schedule.

Water Heater Leaking? How to Tell If You Repair or Replace

Step 1: Cut Power and Water Before You Do Anything Else

Before you get on your hands and knees to look at the leak, protect yourself.

Gas units: Turn the gas valve on the supply line to the OFF position.
Electric units: Flip the breaker for the water heater in your electrical panel.
Water supply: Close the cold-water inlet valve at the top of the tank (clockwise to close). If you cannot find it, shut off the main house supply.

Once that is done, dry up any standing water and let the outside of the tank dry for 10 to 15 minutes so you can see exactly where the moisture is coming from.

The 5 Places a Water Heater Leaks — and What Each One Means

1. Cold-Water Inlet or Hot-Water Outlet Connections (Top of Tank)

These are threaded fittings at the top of the unit. Over time the connections can loosen or the pipe nipples can corrode. You will see moisture or mineral crust right where the pipes enter the tank.

DIY-friendly? Sometimes. If the fitting is just loose, tightening it with a pipe wrench may stop the drip. Corroded nipples need replacement — that is a plumber job if you are not comfortable with threaded pipe work.

2. Temperature and Pressure (T&P) Relief Valve (Side of Tank, Near Top)

The T&P valve is a safety device. It opens automatically if pressure or temperature inside the tank gets dangerously high. A small amount of discharge from this valve is normal occasionally, but a steady drip or stream is not.

What it usually means: Either the valve itself has failed (they wear out after several years) or your water pressure is too high and the valve is doing its job — but it should not have to do it constantly.

Call a plumber. Do not plug or cap a T&P valve. A malfunctioning one can be replaced for a relatively low cost, but ignoring it is a safety risk.

3. Drain Valve (Near Bottom of Tank)

This is the spigot-like valve used when flushing the tank. It can drip if sediment has worked its way into the valve seat or if the plastic valve has cracked with age.

DIY-friendly? Somewhat. A loose valve handle can sometimes be hand-tightened. A failed valve usually needs replacement — not a difficult job but it does require partially draining the tank first.

4. Tank Body (Rust or Seam Leak)

If water is coming from the side or bottom of the actual steel tank — not from a valve or fitting — you are looking at internal corrosion that has eaten through the tank wall. This is the worst-case scenario.

There is no repair. A leaking tank must be replaced. This is not a temporary fix situation; once a steel tank starts leaking from the body, it will fail completely, usually fast. Shut everything off and call immediately.

5. Condensation

In humid Texas summers, a cold incoming-water supply can cause the outside of the tank to sweat. This looks like a slow, general moisture across the tank surface rather than a drip from a specific point.

Usually harmless. If the moisture disappears after the tank heats up, condensation is likely the cause and nothing is broken. If you see rust, that is a different story.

Repair or Replace? The Decision Framework

Use this to make the call:

Replace if: the tank body is leaking, the unit is over 10 years old, you have had two or more repairs in the past two years, or your energy bills have crept up without explanation.
Repair if: the leak is from a fitting or valve, the unit is under 8 years old, and the repair cost is well under half the cost of a new unit.
Gray zone (8–10 years old): Get a plumber's assessment. A technician can check the anode rod condition, sediment level, and heating element to tell you realistically how much life is left.

Central Texas Water Quality and Your Water Heater

Pflugerville, Round Rock, and the surrounding areas are served by hard water — high mineral content, especially calcium and magnesium. Hard water accelerates scale buildup inside your tank, wears out the anode rod faster, and shortens the overall lifespan of the unit. Annual flushing and anode rod checks (every 3 to 5 years) make a real difference here.

When to Call a Licensed Plumber Right Away

The leak is coming from the tank body itself.
Water is pooling on the floor and not slowing down.
You smell rotten egg or sulfur (possible gas issue on gas units).
The T&P relief valve is discharging continuously.
The water coming out of your taps is rusty or brown.

Alberto Plumbing handles same-day water heater repair and replacement throughout Pflugerville, Round Rock, Austin, and Hutto. Jose A. Vital (TX Master Plumber M-39647) offers upfront pricing and free quotes — call (512) 429-6933 and describe what you are seeing.

Water Heater Leaking: Repair or Replace?