Service
Water Heater Repair in Houston, TX
No hot water, a leaking tank, or a tankless unit throwing error codes? DGO Plumbing Services is a licensed, Latino-owned plumbing company repairing tank and tankless water heaters across Houston — same-day appointments, 24/7 emergency response, and a free upfront quote before any work starts.
Common water heater problems we fix
Failed thermocouple, pilot assembly, gas valve, or a tripped electric element.
Loose drain valve or T&P line in some cases — a leaking tank means replacement.
Hard-water scale baked onto the tank floor. A full flush usually restores output.
Sediment buildup, an undersized unit, or a dip tube that has broken down.
Houston hard water is the #1 killer
Most of Houston runs on moderately hard to hard water. Those minerals settle as scale on the bottom of a tank and on the heat exchanger of a tankless unit. Scale insulates the burner from the water, so the unit runs longer, costs more to operate, and fails years early. On every service call we check sediment levels and the anode rod, and we recommend an annual flush to keep the warranty intact and the unit heating efficiently.
Repairs and installs we handle
- Thermostat and heating element replacement (electric)
- Thermocouple, pilot assembly, and gas control valve repair (gas)
- Tank flush and sediment removal for Houston hard water
- Anode rod inspection and replacement
- T&P relief valve and expansion tank service
- Leaking connections, flex lines, and shutoff valves
- Tankless descaling and error-code diagnostics
- Full tank and tankless replacement, including gas and venting
Repair or replace?
| Situation | Our recommendation |
|---|---|
| Unit under 8 years, single failed part | Repair — parts and labor cost far less than a new unit |
| Tank itself is leaking | Replace — a corroded tank cannot be patched safely |
| 10-12+ years old with repeat issues | Replace — better efficiency and a fresh warranty |
| Running out of hot water constantly | Upsize the tank or convert to tankless |
Tank vs. tankless in Houston homes
Tank heaters are cheaper up front and simple to service, which suits most Houston homes with an existing gas or electric hookup. Tankless units deliver endless hot water and free up garage or closet space, but they need correct gas sizing, venting, and annual descaling in our hard water. We install and service both, and we'll tell you honestly which one fits your home and budget.
Water heater FAQs
Can you repair a water heater the same day in Houston?
Yes. We offer same-day water heater repair across Greater Houston and 24/7 emergency response for no-hot-water calls, leaking tanks, and pilot or ignition failures.
Should I repair or replace my water heater?
Repair usually makes sense for thermostats, heating elements, thermocouples, gas valves, and anode rods. If the tank itself is leaking or the unit is past roughly 10-12 years, replacement is normally the better value.
Does Houston hard water damage water heaters?
Houston's hard water leaves mineral scale in the tank and on tankless heat exchangers. Scale causes popping noises, slow recovery, and early failure, so we recommend an annual flush and anode rod check.
Do you service tankless water heaters?
Yes. We repair, descale, and install both gas and electric tankless systems, and we handle tank-to-tankless conversions including gas line and venting work.
Need hot water back today?
Licensed and insured. Free upfront quotes, 24/7 emergency service.