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Tankless water heaters · Hendricks County & surrounding

Tankless water heater installation, maintenance & repair

Essential Plumbing installs, maintains and repairs tankless water heaters, including Navien and Rinnai, and we service and repair all tankless brands — Bradford White, Rheem and A.O. Smith included. Hard water is tough on tankless units, so regular descaling is one of the most important things you can do for yours.

Signs your tankless water heater needs service

  • An error code on the display, or the unit shuts down while water is running.
  • Temperature swings or bursts of cold water in the middle of a shower.
  • Reduced hot water flow compared to when the unit was new.
  • The unit won’t ignite or takes a long time to deliver hot water.
  • New noises — rattling, whistling or a fan that sounds rough.
  • It has been a year or more since the unit was flushed and descaled.

Installation

Thinking about going tankless, or replacing an older tankless unit? We look at your gas supply, venting, water quality and how much hot water your household uses at once, then recommend a unit sized for your home. We install Navien and Rinnai tankless water heaters and can help you decide whether replacing a tank with a tankless unit makes sense for your house.

Maintenance & descaling

Hardness minerals build up as scale inside a tankless heat exchanger, which cuts efficiency and can trigger errors. Our maintenance visit includes:

  • Flushing and descaling the heat exchanger through the service valves.
  • Cleaning the inlet water filter screen.
  • Checking for error history, leaks and proper operation.
  • Looking at venting and condensate drainage on condensing models.
  • Installing isolation (service) valves if your unit doesn’t have them, so future maintenance is easier.

Repair

We diagnose and repair tankless water heaters from all major brands — including Navien, Rinnai, Bradford White, Rheem and A.O. Smith — whether or not we installed them. If your unit is showing an error code, write it down before you call; it helps us arrive prepared.

Protect it from hard water

A water softener or scale-reduction treatment in front of a tankless unit can greatly reduce how quickly scale builds up. Ask us about options when we service your heater.

Available 24/7 across Hendricks County and nearby towns. Licensed in Indiana · LIC#CO52400024.

Call 317-899-9009
Navien tankless water heater mounted on a basement wall with PEX supply lines and an inline whole-house filter, after maintenance by Essential Plumbing in Danville, IN
Our work: tankless water heater maintenance — Danville, IN
White tankless water heater mounted on an insulated basement wall with red and blue water lines, PVC vent pipes and a small expansion tank below
Our work: tankless water heater on a basement wall

Questions

Frequently asked questions

How often should a tankless water heater be descaled?

With the hard water common in central Indiana, about once a year is a good rule of thumb. Very hard water or heavy use may call for more frequent service; a water softener can stretch the interval.

Do you service tankless brands other than Navien and Rinnai?

Yes. We service and repair all tankless water heaters, including Bradford White, Rheem and A.O. Smith, even if someone else installed the unit.

My tankless water heater is showing an error code. What should I do?

Write down the code and call us at 317-899-9009. Many codes point to scale build-up, ignition, venting or water-flow issues, and knowing the code helps us arrive prepared.

Is a tankless water heater right for my home?

It depends on your gas supply, venting options, water quality and how many fixtures you run at once. We’ll walk through those with you and give you an honest recommendation.

Does a water softener help a tankless water heater?

Yes. Softened water greatly reduces scale build-up in the heat exchanger, which helps the unit run efficiently and reduces descaling needs.

Rusty, the Essential Plumbing mascot, waving hello

Get in touch

Keep your tankless running right

Call 317-899-9009 for tankless installation, descaling or repair — Navien, Rinnai and all brands.

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Licensed in Indiana · LIC#CO52400024 · 20+ years in the trade · Locally owned in Pittsboro, IN