- San Antonio's Trusted Plumbing Experts
Water Heater Repair in Castroville & San Antonio, TX
When your hot water heater stops working, life gets uncomfortable—fast. From cold morning showers to ineffective dishwashing, a broken water heater can throw off your entire routine. At Five Star Plumbing, we know how frustrating it is to suddenly lose hot water—especially when you’re trying to get out the door or wind down after a long day. That’s why we respond fast with friendly, skilled plumbers who know how to get your water heater working again—whether it’s gas, electric, or tankless. We bring the right tools, years of hands-on experience, and a promise to fix it right without draining your wallet.
Reliable Hot Water When You Need It Most
Your water heater is one of the most essential appliances in your home. When it fails, it impacts everything from hygiene to comfort. At Five Star Plumbing, we help restore your reliable hot water with same-day service, expert troubleshooting, and long-lasting water heater repair solutions.
We specialize in both traditional and tankless water heater repair services. No matter what brand or model you own, we’ll diagnose the problem and get your water heater running efficiently again.
Common Signs You Need Water Heater Repair
Don’t wait until the water runs cold. Here are a few signs your system might need water heater repair:
- Fluctuating or inconsistent hot water
- Discolored or rusty water
- Strange noises or rumbling from the tank
- Water pooling around your unit
- Low hot water pressure
- Lukewarm water from your hot water faucet
These issues often point to failing heating elements, sediment buildup, or problems with your gas supply. Our team will assess your system and explain your options clearly.
Water Heater Repair for Castroville and San Antonio Homes
Whether you’re near Houston Square, Medina Valley High School, or a neighborhood off Potranco Road in San Antonio, our licensed plumbers are nearby and ready to help. We bring over 15 years of experience in residential and commercial plumbing to every job.
Our water heater repair services include:
- Diagnosing faulty heating elements
- Flushing sediment from tanks
- Repairing faulty thermostats or valves
- Fixing gas water heater pilot lights
- Addressing corrosion or minor leaks
Hot Water Heater Experts for Every Brand
From Rheem and Bradford White to AO Smith and Navien, we service all major brands. Our technicians regularly handle both gas and electric water heater issues with precision.
- Electric Water Heaters – Heating element and thermostat troubleshooting
- Gas Water Heaters – Gas supply checks, pilot light repair, and burner assembly cleaning
- Tankless Water Heater Services – Descaling, temperature calibration, and error code diagnostics
We’ll make sure your hot water heater gets the care it needs without upselling unnecessary replacements.
Get Back to Consistent Hot Water
If your water temperature jumps from hot to cold—or runs out too quickly—it’s time to call Five Star Plumbing.
Our team checks all parts of your system: heating elements, thermostats, sediment buildup, and more. We make sure everything is working together to keep your hot water steady.
Routine maintenance also extends the life of your unit. It’s the best way to avoid surprise breakdowns—and keep your showers, laundry, and dishes running smoothly. and ensures you always have reliable hot water—no matter how many loads of laundry or back-to-back showers your home goes through.
Safety Inspections and Preventive Maintenance
A faulty water heater can lead to water damage, mold, or even gas leaks. We offer:
- Annual safety inspections
- Preventive flushing and cleaning
- Replacement of worn heating elements
- Thermostat testing
These services not only keep your water heater running well but may also help reduce energy costs and prevent breakdowns before they happen.
Why Castroville and San Antonio Trust Five Star Plumbing
- 15+ years serving Castroville, San Antonio & Medina County
- Certified by the Texas State Board of Plumbing Examiners
- Licensed, insured, and HUB/MBE/SBE certified
- 1-Year warranty on most repair services
- Transparent pricing and same-day appointments
- Emergency water heater repair available 24/7
Contact Us for Fast Water Heater Repair
Whether you’ve got a failing hot water heater or just want a tune-up, our team is here for you.
Castroville Location
2780 FM 471 N, Castroville, TX 78009
Hours: 24/7 Emergency Service
San Antonio Location
1021 Patricia Dr, San Antonio, TX 78213
Hours: Mon–Fri, 8:00 AM – 5:00 PM
FAQs – Water Heater Repair in Castroville & San Antonio
Why is my water heater not producing hot water?
This could be due to a faulty thermostat, broken heating elements, or a gas supply issue. Our licensed plumbers can quickly identify and fix the root of the problem.
How long does water heater repair take?
Most water heater repairs can be completed in a single visit. We carry common replacement parts to restore your hot water supply as quickly as possible.
Is it better to repair or replace my water heater?
If your unit is less than 10 years old and the problem is minor, repair is usually the most cost-effective choice. We’ll always explain your options and only recommend replacement if it’s absolutely necessary.
Do you repair tankless water heaters?
Yes, we specialize in both tank and tankless water heater services. Whether it’s a temperature issue or an error code, our team has the tools to restore consistent hot water.
How often should I schedule water heater maintenance?
We recommend an annual inspection and flush to remove sediment buildup, check heating elements, and maintain reliable hot water throughout the year.