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Tankless Repair Service
If your tankless water heater is not working, choose Harmony.
Icicles coming out of a shower head that that represent having no hot water.Icicles coming out of a shower head that that represent having no hot water.

Professional Dallas Tankless Water Heater Repair Plumbers

Serving Dallas, Collin, and Denton Counties
Schedule a Tankless Repair Plumber Today
a navien tankless water water heater that needs repaireda navien tankless water water heater that needs repaired

Certified Navien Tankless Water Heater Repair Specialist

When your Navien tankless water heater needs serviced, discover Harmony. As a Navien Service Specialist we are trained and licensed to perform warranty work and routine maintenance.

A Navien tankless water heater with the Navien Certified Service Specialist badge
A plumber at Harmony Plumbing, repairing a tankless water heater

Tankless Water Heater Brands we Service

  • Navien Tankless
  • Rinnai Tankless
  • Rheem Tankless
  • State Tankless
  • Takagi Tankless
  • Bradford White

Tankless water heater flushing service

How often does my tankless water heater need to be flushed?

Most manufacturers recommend flushing your tankless water heater annually. In North Texas, where the water is particularly hard due to its high mineral content, regular flushing becomes even more critical. Our technician will use a pump and special solution to perform a thorough internal cleaning of your tankless unit, restoring it to peak performance.

Why does my tankless water heater need to be flushed?

When you boil a pot of water until it fully evaporates, a white, powdery residue remains, composed of the minerals present in the water. Similarly, as cold water flows into your tankless water heater, it is rapidly heated through a heat exchange process. This quick heating, much like the boiling pot, causes mineral buildup inside the unit.

For Professional Tankless Flushing Service Choose Harmony

Schedule your Tankless Water Heater Flush Today

Our Service Guarantee:
A call center representative at Harmony Plumbing & Drain Cleaning using a phone to schedule a plumber.

We communicate with you.

After scheduling plumbing service, our customer service representative will stay in contact with you about the status of your plumber. Once our plumber arrives, they will remain in contact with you about the service they are providing.

A plumber from Harmony Plumbing & Drain Cleaning preparing to enter a Dallas Texas home, by putting on a shoe cover.

We respect your home.

From wearing boot covers to using absorbent pads in our work area, our plumbers are dedicated to mitigating the potential mess associated with plumbing repairs. We understand that you were not expecting to have a plumber in your home today, and we are honored you chose us.

A plumber using an iPad to show a Dallas, TX homeowner water heater options.

We provide you with a price before the work begins.

We will always provide you with a price before the work begins. If you are having a plumbing fixture or water heater replaced, we will provide you with good, better and best options.

a Harmony Plumbing & Drain Cleaning plumber repairing a kitchen sink drain.

We resolve your plumbing issue.

Our goal is to always provide 5-star service, by insuring your plumbing issue is taken care of and restoring peace and harmony to your home.

Five Star Plumbing Service

5-star Service

We go above and beyond to deliver 5-Star service, providing exceptional quality workmanship and ensuring that every homeowner we work with has their plumbing problem resolved.

A locally owned Dallas, Texas plumbing company

Founded in Dallas, Texas

We are not a franchise or private equity owned company, but a fully local family owned Dallas company.
As Texans we subscribe to the Texan values of freedom and equality for all.

Upfront pricing for plumbing service

Honesty + Transparency = Upfront Pricing

You can trust us to provide clear, upfront pricing for all our services, with no hidden fees or surprises.

An experienced licensed and bonded plumbing company in Dallas, Tx

Licensed, Bonded & Insured Plumbers

With their expertise and attention to detail, you can rest assured that your plumbing needs are in capable hands. Our adherence to state and city regulations ensures that our work is safe, reliable, and up to code, giving you peace of mind.

214-748-4444
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