Water Heater Repair in Alamo Heights, TX
A water heater with no hot water, or a pilot light that will not stay lit, needs a diagnosis before any parts are replaced. Will’s Plumbing & Testing Service diagnoses and repairs water heaters for homes in Alamo Heights and across Central San Antonio.
Availability depends on technician scheduling, service location, access conditions, and current call volume. Call us to confirm availability for your address.
Serving San Antonio since 1999. Led by William Shilling, whose plumbing career began in 1988 and who has been a licensed Master Plumber since 1993.
A Recent Water Heater Repair in Alamo Heights
What the customer reported: no hot water, and the pilot light would not stay on.
What our technician found: our technician diagnosed the A. O. Smith water heater, working with A. O. Smith technical support, and determined that the thermal switch had tripped.
What we did: we reset the thermal switch and cleaned the filter.
Result: we restarted the water heater, and the pilot light stayed on. The job was completed in August 2026.
Water pressure was measured at 90 PSI. We recommended replacing the pressure-reducing valve and provided an estimate. That replacement was not performed as part of this job.


A Second Water Heater Repair in Alamo Heights
What the customer reported: the pilot light would not ignite, and there was no spark.
What our technician found: the draft hood was installed incorrectly.
What we did: we adjusted the draft hood so the water heater could operate correctly.
Result: we tested the pilot light, and it stayed on. The job was completed in August 2026.


When the Pilot Light Will Not Stay Lit
A pilot light that goes out or will not light can have several causes, including a safety device that has tripped, a venting problem, or a gas supply issue. The two jobs above had different causes, which is why the water heater is diagnosed before any part is replaced.
See water heater repair and our guide on repairing or replacing a water heater.
Water Pressure and Your Plumbing
A pressure-reducing valve lowers the pressure of the water coming into the home. When pressure runs high, replacing or adjusting that valve may be recommended as separate work. See our guide to signs of high water pressure.
More Plumbing in Alamo Heights
See our Alamo Heights plumbing page for the other services we provide in the area, and our A. O. Smith and State water heater service page.
Water Heater Repair in Alamo Heights: FAQs
Do you repair water heaters in Alamo Heights?
Yes. Alamo Heights is within our regular service area, and we diagnose and repair water heaters there. We find the cause of the problem before any part is replaced. Availability depends on technician scheduling, location, access, and current call volume, so please call to confirm for your address.
Why won’t my water heater pilot light stay lit?
The cause can be a tripped safety device, a venting problem, or a gas supply issue, among others. On the two jobs above, one was a tripped thermal switch and the other was an incorrectly installed draft hood. That is why the water heater is diagnosed before any part is replaced.
What does a water heater draft hood do?
The draft hood sits at the top of a gas water heater and connects it to the vent that carries combustion gases out of the home. It needs to be installed correctly for the water heater to operate correctly.
What is a pressure-reducing valve?
A pressure-reducing valve lowers the pressure of the water coming into the home to a steadier level for the plumbing, fixtures, and appliances. When pressure runs high, replacing or adjusting the valve may be recommended as separate work.
Are you licensed?
Yes. Work is performed by or under the supervision of a Responsible Master Plumber licensed by the Texas State Board of Plumbing Examiners (TSBPE).
Water Heater Problems in Alamo Heights?
If your water heater is not heating or the pilot light will not stay lit, call Will’s Plumbing & Testing Service. We will diagnose the problem and explain your options.