Tankless Water Heater Repair in Reston, VA
Tankless water heater repair in Reston, VA 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.
- Run at full demand before we go
- Error history read first
- Gas and electric units
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 Reston Homes
In Reston, units are often in a basement or crawl-space-level utility room. Freeze protection and a clear condensate line keep them running through winter.
What we run into in Reston
- Basement units. Many units here sit in the basement with PVC pipes venting out through the rim joist, and the condensate has to drain somewhere sensible.
- 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.
Every neighborhood in Reston is covered, ZIPs 20190, 20191, 20194, 20195, 20196, 22096 included.
Call (380) 273-8196Tankless Problems We Fix Around Reston
When people phone about tankless water heater repair in Reston, VA, it is nearly always one of these problems. Each has a short list of causes.
Code 11, E003 or 111
No ignition usually means gas pressure, a worn igniter, a dirty flame rod or a blocked vent. Each is tested.
Water under the unit
Drips come from service valves, fittings, the relief valve, the condensate line or the heat exchanger itself.
Code 10 or E110
Venting codes mean the unit can't breathe: a blocked termination, a nest, snow or a vent run that's too long.
Display is blank
No power at the outlet, a blown fuse or a failed control board.
Frozen after a cold night
Lines feeding the unit froze, or freeze protection lost power.
Error code keeps coming back
A reset only clears the symptom. Repeated ignition or exhaust codes need a visit.
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 Reston
Most tankless faults are repairs, plain and simple. Replacement only makes sense when the heat exchanger has failed out of warranty or an electric unit is near the end of its shorter working life.
Not sure which side of the line you are on? Call (380) 273-8196 with the brand, the age on the label and the code. You will hear whether a repair makes sense before anyone comes out.
Call (380) 273-8196Estimated Repair Costs in Reston
Expect an estimated $150 to $800 for tankless water heater repair in Reston, VA 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
- Gas pressure measured under load
- Model and serial noted for warranty
- A plain answer on what failed
Repairs & descaling
- Isolation valves added for flushing
- Igniter, flame rod or sensor replaced
- Heat exchanger descaled
Heat exchanger & major parts
- Combustion checked after the swap
- Fan motor or blower replaced
- Warranty part claimed where it applies
Need Tankless Water Heater Repair in Reston, VA? Call Now
Cold showers rarely fix themselves. Most units are back to full heat after one part and one visit.
Reston Homes by the Numbers
Gas heats about 49% of homes in Reston and electricity about 49%, so both gas and electric tankless units turn up on calls here. With a median build year of 1983, homes in Reston sit in the middle: plenty were retrofitted with tankless units, and plenty of those units are now old enough to need parts. Reston is about evenly split between owners (around 61%) and renters, so calls come from homeowners and from landlords and property managers alike.
With about 63,542 residents on roughly 15 square miles (near 4,142 per square mile), Reston is suburban in density, with a mix of detached homes and townhomes. Among the 85 Virginia places we cover, it ranks number 9 by population.
Source: U.S. Census Bureau, American Community Survey 2019-2023 5-year estimates for Reston, VA.
Where We Go in Reston
Every neighborhood in Reston is covered, ZIPs 20190, 20191, 20194, 20195, 20196, 22096 included.
- 20190
- 20191
- 20194
- 20195
- 20196
- 22096
Nearby Cities We Serve
Tankless Water Heater Repair in Reston, VA: 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 Reston, VA 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.
How often should a tankless water heater be flushed?
Once a year for most homes, and twice a year on very hard water. Soft-water homes can stretch it, but never skip it for years.
Is there a reset button on a tankless water heater?
Most units reset by switching power off and on, or through the controller. A reset clears the code, not the cause; ignition and exhaust codes that return need a repair visit.
How long does a tankless water heater last?
Gas units commonly run 20 years or more when they are flushed on schedule. Electric tankless units tend to last closer to 7 to 10 years.
Schedule a Tankless Visit in Reston
Call (380) 273-8196. Nothing is repaired until you have approved the written quote.
Talk to a Tankless Technician in Reston
Covering Reston
20190, 20191, 20194, 20195, 20196, 22096, and the neighboring parts of Fairfax County.
More Virginia service areas