No hot water?
We’ll find out why first
Plenty of water heaters get replaced when a part would have done. We test the whole unit — thermostat, element or burner, gas valve, T&P valve, anode and connections — and tell you honestly which side of the repair-or-replace line yours falls on.
Six ways a water heater tells you it’s in trouble
Most of these are repairable if you catch them early. All of them get worse if you don’t.
No hot water at all
On gas, usually the pilot, thermocouple or gas valve. On electric, usually a tripped high-limit or a dead upper element. Both are common repairs, not automatic replacements.
Runs out far sooner than it used to
Classic sediment build-up: an inch of scale in the bottom of the tank is an inch that used to be hot water. Hard water here makes this the single most common complaint we hear.
Rumbling, popping or knocking
That is water boiling underneath a sediment layer. It is a warning, not a quirk — the tank is overheating its own floor.
Rusty or metallic-smelling hot water
Usually a spent anode rod. Replace the anode and you can add years; ignore it and the tank starts corroding from the inside out.
Water pooling around the base
If it is coming from a fitting or the T&P discharge, that is a repair. If it is weeping from the tank seam itself, the tank is finished and no repair will hold.
The T&P valve keeps discharging
Either the valve has failed or the tank is over-pressurising. Never cap it — that valve is the thing standing between a water heater and a serious accident.
What a repair visit actually looks like
Roughly an hour for a straightforward diagnosis, and you approve the number before any of it turns into work.
We test, not guess
Power or gas supply, thermostat, element or burner assembly, gas valve, T&P valve, anode and connections — in that order, so we find the cause rather than the symptom.
You see what we found
We show you the failed part, or the sediment, or the seam. Nobody should take a plumber’s word for it sight unseen.
You get both numbers
Where a repair is realistic, you get the repair price and the replacement price side by side, plus our honest read on how long the repair buys you.
We do the work and check it
Repair, refill, purge the air, verify recovery temperature, and confirm the T&P and connections are sound before we leave.
Water Heater Repair
When repair is right — and when we’ll tell you it isn’t
A water heater is one of the few appliances where the honest answer genuinely swings both ways. A ten-year-old tank with a dead element is often worth the element. The same tank weeping at the seam is worth nothing, and any plumber who sells you a repair on it is selling you a second call-out.
The rough rule we work to: if the tank itself is sound, repair. If the tank is corroded through, replace. Everything else — age, warranty, how hard your water is, what a new unit would cost you to run — goes into the conversation rather than into a script.
- Thermostats, heating elements, burners and thermocouples
- Gas control valves and pilot assemblies
- Temperature & pressure relief valve replacement
- Anode rod replacement — the cheapest way to add years to a tank
- Sediment flushing and drain valve replacement
- Leaking connections, flex lines, dielectric unions and expansion tanks
- Straight advice when the tank is past saving
Limestone water is hard on tanks here
Nearly every home around Boerne is fed from limestone aquifers, and that mineral load precipitates out inside your water heater as scale. It settles on the bottom of the tank, insulates the burner from the water it is meant to heat, and forces the unit to run longer and hotter to deliver the same shower.
That is why water heaters in the Hill Country routinely under-perform their rated life, and why the rumbling complaint is so common here. It is also why flushing and a fresh anode rod are worth more on this ground than they would be somewhere with softer water — and why a softener is a water-heater decision as much as a laundry one.
Water pooling at the base?
Shut the cold inlet and kill the power or gas, then call. That one is time-sensitive.
Water Heater Repair questions
Still not sure?
Describe it on the phone and we'll tell you straight whether it needs us.
It depends almost entirely on whether the tank itself is sound. A failed element, thermostat, gas valve or anode rod is a repair. A tank weeping at the seam is not repairable at any price. We test before we quote so you get a real answer rather than a default one.
Less than the sticker suggests, because our limestone water scales tanks faster than the manufacturers assume. Flushing it and replacing the anode rod on schedule is the difference between the low end of that range and the high end.
Sediment has built up on the bottom of the tank and water is boiling underneath it. It is worth acting on — the tank is overheating its own floor, which shortens its life considerably.
No — never. That valve is the safety device that stops a water heater becoming dangerous. A dripping T&P valve means either the valve has failed or the system is over-pressurised, and both are things we can sort out.
Yes, both, and tankless units as well. Tell us which you have when you call and we will load the truck accordingly.
Often booked alongside this
Water heater repair across the Hill Country
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- All service areas
Get the hot water back
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Boerne & Fair Oaks Ranch, TX · Licensed Master Plumber M-38925