Tankless Water Heater Repair in Houston, TX
Tankless water heater repair in Houston, TX for gas and electric units that have stopped keeping up. The cause is found, the repair is quoted in writing, and the unit is run hard before we leave.
- Gas and electric units
- Descaling through service valves
- Run at full demand before we go
Fault found first
The code, the stored history and each suspect part are tested before anything is ordered.
Price agreed in writing
Parts and labor go on a written quote, and nothing starts until you approve it.
Licensed local techs
Repairs by licensed technicians who work in your part of town.
Tankless units only
One specialty: gas and electric tankless heaters that stopped doing their job.
Tankless Units in Houston Homes
Houston has plenty of homes that switched to tankless later, sometimes on gas lines sized for a tank. Flame codes when other appliances run are a giveaway.
What we run into in Houston
- Freeze damage. Cold snaps do damage here when the power drops overnight. A frozen line or a cracked fitting under the unit is a repair we see after every deep freeze.
- Retrofit installs. In older homes converted to tankless, the original gas piping is not always big enough. Pressure gets measured with the burner at full fire before parts are blamed.
From one side of Houston to the other (77001, 77002, 77003, 77004, 77005, 77006, 77007, 77008, 77009, 77010, 77011, 77012, and 166 more), plus nearby parts of Harris County.
Call (380) 273-8196What We Repair on Tankless Units in Houston
Error codes & ignition
Units that click but never light, or light and drop out, get the ignition and gas side tested and repaired.
Descaling & flushing
A pump circulates descaler through the exchanger until the scale is gone, then the filter is cleaned too.
Flow sensors, filters & leaks
Temperature swings, low flow and drips under the cabinet traced to the sensor, filter or a failing seal.
How a Repair Visit Runs in Houston
A tankless unit can fail for a dozen reasons that look the same at the tap. This sequence narrows them down.
- 01
Error history read
- 02
Gas pressure under load
Inlet gas pressure is measured with hot water running, because a supply that looks fine at rest can sag once the burner fires.
- 03
Flow and inlet filter
- 04
Ignition and flame
Igniter, flame rod and burner are inspected and tested. A dirty rod is cleaned; a dead one is replaced.
- 05
Venting and condensate
- 06
Sensors and board
- 07
Fixed, then run hard
After the repair, several taps run at once while the outlet temperature is watched, before the job is signed off.
Tankless Problems We Fix Around Houston
Most requests for tankless water heater repair in Houston, TX start with one of the symptoms below, and most end with a single part or a descale.
Unit won't light
No ignition usually means gas pressure, a worn igniter, a dirty flame rod or a blocked vent. Each is tested.
Water under the unit
Water below a tankless can be a valve, a fitting, condensate or a failed exchanger. The source decides the cost.
Venting fault
An air or exhaust code stops the burner for safety. The intake and exhaust are cleared and checked.
Frozen after a cold night
Lines feeding the unit froze, or freeze protection lost power.
Noisy or whistling
Scale, a struggling fan or a gas regulator issue, each of which shows up on testing.
Hot, then cold, then hot
A short cold burst after the tap reopens is normal start-up. Swings during one shower point to low flow, scale or a failing flow sensor.
Can't tell which one you have? Read us the display and describe the water, and the likely fault comes back on the call.
Fix It or Retire It? Deciding in Houston
Gas tankless units commonly last 20 years or more with flushing, so a single failed part rarely means a new heater. A failed exchanger outside its warranty, on a unit past 15 years, is where replacement starts to win.
Read the model and serial off the label and call (380) 273-8196. The age and the fault together usually settle repair versus replace on the phone.
Call (380) 273-8196Estimated Repair Costs in Houston
Expect an estimated $150 to $800 for tankless water heater repair in Houston, TX when a sensor, igniter, flame rod or descale is the fix. Exchanger jobs run higher, estimated at $1,000 to $2,500.
Diagnosis & code check
- A plain answer on what failed
- Vent terminations looked over
- Stored error history read
Repairs & descaling
- Inlet filter screen cleaned
- Igniter, flame rod or sensor replaced
- Flow sensor or thermistor swapped
Heat exchanger & major parts
- Honest word if a new unit is the better spend
- Warranty part claimed where it applies
- Control board or gas valve replaced
Why Houston Homeowners Call Us
Scale treated, not ignored
If scale caused the fault, the exchanger is descaled as well, so the same code doesn't return next month.
Quote in writing
The cause and the price are written down before work starts, whether the job is a filter or an exchanger.
The code is a starting point
Error codes name a system, not a part. Gas, flow, venting and sensors are measured before anything is replaced.
Need Tankless Water Heater Repair in Houston, TX? Call Now
Scale and ignition faults get worse with every cycle. Get it looked at while it is still simple.
Where We Go in Houston
From one side of Houston to the other (77001, 77002, 77003, 77004, 77005, 77006, 77007, 77008, 77009, 77010, 77011, 77012, and 166 more), plus nearby parts of Harris County.
- 77001
- 77002
- 77003
- 77004
- 77005
- 77006
- 77007
- 77008
- 77009
- 77010
- 77011
- 77012
- +166 more
Nearby Cities We Serve
Tankless Water Heater Repair in Houston, TX: FAQs
Question not covered here?
Call and ask. Someone who repairs tankless units answers, and the phone quote is free.
Call (380) 273-8196How much does tankless water heater repair in Houston, TX cost?
Most repairs cost an estimated $150 to $800, depending on the part. Descaling alone is estimated at $150 to $350, and a heat exchanger at $1,000 to $2,500. Freeze repairs depend on what split, and are priced once the damage is seen.
Why is my tankless water heater not turning on?
Check for power at the outlet and that the gas valve is open. Beyond that it is usually low flow, a clogged inlet filter, a failed flow sensor or an ignition fault.
Can a tankless water heater be repaired?
Yes, in most cases. Igniters, flame rods, flow sensors, thermistors, fans, gas valves and boards are all replaceable, and scale can be descaled. A leaking heat exchanger on an old unit is the main exception.
How often should a tankless water heater be flushed?
Most makers call for a flush every year, and every six months on very hard water. On very soft water the gap can be longer, but skipping it for years invites scale faults.
Schedule a Tankless Visit in Houston
Ring (380) 273-8196 with the brand and the code, and you will hear the probable fault and a price range before you hang up.
Talk to a Tankless Technician in Houston
Covering Houston
77001, 77002, 77003, 77004, 77005, 77006, 77007, 77008, 77009, 77010, 77011, 77012, 77013, 77014, 77015, 77016, 77017, 77018, 77019, 77020, 77021, 77022, 77023, 77024, 77025, 77026, 77027, 77028, 77029, 77030, 77031, 77032, 77033, 77034, 77035, 77036, 77037, 77038, 77039, 77040, 77041, 77042, 77043, 77044, 77045, 77046, 77047, 77048, 77049, 77050, 77051, 77052, 77053, 77054, 77055, 77056, 77057, 77058, 77059, 77060, 77061, 77062, 77063, 77064, 77065, 77066, 77067, 77068, 77069, 77070, 77071, 77072, 77073, 77074, 77075, 77076, 77077, 77078, 77079, 77080, 77081, 77082, 77083, 77084, 77085, 77086, 77087, 77088, 77089, 77090, 77091, 77092, 77093, 77094, 77095, 77096, 77098, 77099, 77201, 77202, 77203, 77204, 77205, 77206, 77207, 77208, 77209, 77210, 77212, 77213, 77215, 77216, 77217, 77218, 77219, 77220, 77221, 77222, 77223, 77224, 77225, 77226, 77227, 77228, 77229, 77230, 77231, 77233, 77234, 77235, 77236, 77237, 77238, 77240, 77241, 77242, 77243, 77244, 77245, 77248, 77249, 77251, 77252, 77253, 77254, 77255, 77256, 77257, 77258, 77259, 77261, 77262, 77263, 77265, 77266, 77267, 77268, 77269, 77270, 77271, 77272, 77273, 77274, 77275, 77277, 77279, 77280, 77282, 77284, 77287, 77288, 77289, 77290, 77291, 77292, 77293, 77297, 77299, and the neighboring parts of Harris County.
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