Signs a tankless water heater needs service
Most tankless faults come down to scale, gas supply or venting. The unit usually tells you before it quits.
- An error code on the display
- Hot water goes cold mid-shower
- Output has dropped off
- The unit fires and cuts out
- It is noisier than it used to be
- It has never been descaled
How we service a tankless water heater
We work through it in order, because the error code alone does not always name the cause.
Read the code and test
We read the fault code, then check what it is actually pointing at rather than swapping parts on a guess.
Descale the heat exchanger
Scale from hard water chokes output and makes the unit work harder. Flushing it through the isolation valves restores it.
Check gas supply and venting
An undersized gas line or a blocked vent shows up as a unit that fires and cuts out. We check both.
Clean filters and set a schedule
The inlet filter and screens get cleaned, and we set the descaling schedule so it does not drift again.
Why Shore homeowners call us for tankless water heater service
Certified on the brands we work on, and honest about what a unit needs.
Certified on the brands we fit
Rinnai and Navien certified, so the unit gets serviced the way the maker specifies.
We know the water here
Hard well water is why most Shore tankless units scale up. We test it and tell you whether treatment would end the problem for good.
No surprise on the invoice
You approve a written estimate before work begins. If the job needs something we did not see coming, we stop and talk to you first.
Guaranteed in writing
2-year workmanship
Our guarantee on the labor, on every job we do.
Manufacturer warranty
Passed through to you in full on everything we install.
100% satisfaction
If it is not right, we come back and make it right.
Questions We Get Asked About Tankless Water Heater Service
What people ask when a tankless water heater plays up.
How much does tankless water heater service cost?
A service visit is quoted before we start, and the price depends on the unit and whether parts are needed. If it turns out the unit is beyond saving, replacement ranges are in our tankless cost guide.
How soon can you come out?
Often the same day, and usually within the week. We work 8:00am to 9:00pm, seven days a week, so evening and weekend visits count too. Book online or call (757) 824-9862 for a time.
How often should a tankless water heater be descaled?
Once a year for most homes here. Hard well water can make it sooner, and a unit that has never been descaled usually shows it in the output.
Will you service a tankless water heater someone else installed?
Yes. We service and descale tankless units regardless of who fitted them, and we will tell you honestly if the original installation is the reason it is giving trouble.
What does the error code on my tankless water heater mean?
The codes differ by brand and model, and the same code can point at gas supply, venting, scale, or a sensor. We read it, test what it points at and explain what we find.
Choose the job you need
- Tank installation and replacement: New 40 and 50 gallon tanks, fitted to code
- Tank repair and maintenance: No hot water, leaks, flushes, and anode rods
- Tankless installation: Sizing, gas line, and venting, done in-house
- Tankless repair and descaling: Error codes, output drops, annual descaling
Explore related services
- Everything we install, repair, replace, and maintain
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- How Much Does a Tankless Water Heater Cost on Virginia’s Eastern Shore
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Ready for a steady hand?
Book with our team, or call us seven days a week from 8am to 9pm.
Call (757) 824-9862