Your water heater worked fine yesterday. Today, the shower’s lukewarm, there’s a puddle on the garage floor, or the tank is making sounds you’ve never heard before. The Katy Plumbing Company has been diagnosing and repairing water heaters across the Katy area for 25 years — and most repairs don’t require a full replacement. Call us at (281) 601-1513 and we’ll have a licensed plumber (MPL #36673) at your door, often within the hour.
Common Water Heater Problems We Repair
Every water heater repair starts with a proper diagnosis. Our plumbers carry the most common parts on the truck so most repairs are completed in a single visit:
- No Hot Water at All: The most urgent call we get. On gas units, this is usually a failed thermocouple, pilot light issue, or faulty gas control valve. On electric units, it’s typically a burned-out heating element or tripped reset button. We test and replace the failed component on-site.
- Water Not Hot Enough: A broken dip tube is the most common culprit — it lets cold water mix into the hot supply near the top of the tank. Sediment buildup on the lower heating element (electric) or around the burner assembly (gas) is the second most common cause.
- Leaking from the T&P Relief Valve: The temperature and pressure relief valve drips when tank pressure is too high or the valve itself has failed. We test the system pressure, replace the valve if needed, and check for thermal expansion issues.
- Leaking from the Tank Bottom: This usually means internal corrosion has eaten through the tank lining. Unfortunately, a tank-bottom leak can’t be repaired — it means replacement is needed. We’ll help you choose the right unit and can often install it the same day.
- Rumbling, Popping, or Banging Noises: Sediment collects at the bottom of the tank over time and hardens into a layer that traps water underneath. When the burner fires, that trapped water boils and produces the noise. A full tank flush and drain clears the sediment and restores quiet operation.
- Rusty or Discolored Hot Water: If only the hot side is discolored, the anode rod inside the tank has likely corroded through. The anode rod is a sacrificial part designed to attract corrosion away from the tank walls. Replacing it every 3-5 years is one of the best ways to extend your water heater’s lifespan.
- Slow Recovery Time: If the tank takes much longer than usual to reheat, the lower heating element (electric) may be partially failed, or sediment is insulating the bottom of the tank from the gas burner. We diagnose which and repair accordingly.
- Pilot Light Won’t Stay Lit: A failing thermocouple is the most common cause. This safety device tells the gas valve the pilot is lit — when it fails, the valve shuts off gas flow. We replace thermocouples on all major gas water heater brands.
Gas vs. Electric Water Heater Repair
Gas and electric water heaters fail differently, and repairing them requires different expertise:
- Gas Water Heaters: Pilot assemblies, thermocouples, gas control valves, burner assemblies, flue and venting issues. Gas repairs require a licensed plumber who can verify safe combustion and proper venting — carbon monoxide leaks from improperly repaired gas water heaters are a serious safety hazard.
- Electric Water Heaters: Upper and lower heating elements, thermostats, high-limit reset switches, and wiring connections. Electric repairs are generally simpler but still require proper diagnosis — replacing the wrong element wastes money and doesn’t fix the problem.
Our plumbers are trained on both types and carry parts for the most common gas and electric models from Bradford White, Rheem, A.O. Smith, and State.
When to Repair vs. When to Replace
We’ll always try to repair first — we’re not in the business of selling you a new water heater when a $150 part fixes the problem. That said, there are clear signs replacement makes more financial sense:
- The tank is leaking from the bottom (internal corrosion — not repairable)
- The unit is over 10-12 years old and the repair cost exceeds 50% of replacement
- You’re making your second or third repair call in the same year
- Energy bills have climbed steadily as the unit loses efficiency
If replacement is the better option, we’ll walk you through your choices — traditional tank, tankless, or hybrid heat pump — with transparent pricing and no pressure. We can often install a new unit the same day.
Water Heater Maintenance That Prevents Repairs
Most water heater repairs we see could have been prevented with basic annual maintenance:
- Annual Tank Flush: Draining sediment from the tank prevents overheating, noise, and premature tank failure. Especially important in Katy where the water is moderately hard.
- Anode Rod Inspection: Check and replace the anode rod every 3-5 years. This $30-50 part protects a $1,000+ tank from corrosion.
- T&P Valve Test: Lift the lever once a year to verify it opens and closes properly. A stuck valve is a safety concern.
- Temperature Check: We recommend 120°F — hot enough for comfort, low enough to prevent scalding and reduce energy use.
Service Areas
We repair water heaters throughout Katy, Cypress, Fulshear, Sugar Land, Cinco Ranch, Richmond, Brookshire, Missouri City, Memorial, and the greater West Houston area. Available 24/7 for emergency water heater failures.
Call The Katy Plumbing Company at (281) 601-1513 for same-day water heater repair. We’ll diagnose the problem, explain your options, and fix it right the first time.
