Tempe · Maricopa County

Tankless Water Heater Repair & Descaling in Tempe

Tyler and Cam, the two owners of The Water Heater Bros, handle tankless water heater repair & descaling in Tempe themselves. Quotes by phone or text are free.

  • Licensed · AZ ROC 363269
  • Family-owned · owners do the work

We cover all of Tempe, including Downtown Tempe, Maple-Ash, The Lakes. Visits run Monday to Saturday, 8 AM to 5 PM Arizona time, and you get a clear price before any work starts.

Signs your Tempe home needs tankless water heater repair & descaling

  • An error code is flashing on the display
  • Water turns hot, then cold, then hot again
  • Hot water flow is weaker than it used to be
  • The unit will not fire at low flow

Stuck on an error code? Text Tyler or Cam the code and brand. Call or text (602) 901-6418 · Mon–Sat, 8 AM–5 PM.

How long it takes

Descaling and filter cleaningAbout 1 hour
Error code diagnosisVaries by unit
Flow sensor or part repairVaries by part

Tankless Water Heater Repair & Descaling in Tempe: what's different here

Tempe gets the same hard water as the rest of the Phoenix Valley, and tankless units feel it first. Scale inside the heat exchanger cuts flow and triggers error codes. Units in hot south Tempe garages also work hard all summer. A descale with air and water filter cleaning takes about an hour and often fixes it.

Neighborhoods we serve in Tempe

  • Downtown Tempe
  • Maple-Ash
  • The Lakes
  • Broadmor
  • Kiwanis Park area
  • Warner Ranch
  • South Tempe

What to expect on the day

  1. 1

    Tell us the symptom or code

    Call or text with the brand, the code and what you are noticing. Many codes point us in the right direction before we arrive.

  2. 2

    Find the real cause

    We check scale, the inlet water filter, the air filter, the flow sensor and ignition before naming a fix.

  3. 3

    Test and share tips

    We run hot water at several taps, clear the code and tell you how to keep the unit healthy.

Need tankless water heater repair & descaling in Tempe?

Call or text for a free quote by phone. Mon–Sat, 8 AM–5 PM.

What affects your price

Cleaning or partDescaling and filter cleaning usually cost less than replacing a part.
Brand and modelSome brands' parts cost more or take longer to get.
Scale buildupHeavy scale may need more descaling time to clear fully.

Frequently Asked Questions

A clogged inlet water filter or scale inside the unit is the usual cause. Both slow the flow at every tap. We clean the filter, descale the heat exchanger with an environmentally friendly solution and check the flow sensor. The visit takes about an hour, and we tell you if any part needs replacing.

We book repair visits Monday to Saturday, 8 AM to 5 PM Arizona time. Call or text with your address in Tempe, the brand of your heater and what it is doing, and we will offer the first opening we have. If you smell gas, leave the house and call your gas utility first.

We pump an environmentally friendly descaling solution through the unit to dissolve mineral buildup. We also clean the built-in air filter and the inlet water filter. Then we flush the unit, test it and share recommendations to help it last longer.

Talk to the owners first

Call or text for a free quote by phone. Tyler or Cam will tell you clearly what makes the most sense.

Call or text (602) 901-6418Send us a message

Mon–Sat 8 AM–5 PM · Sunday closed · Arizona time