Liberty Plumbing
Painted view of Phoenix, Arizona
Phoenix, Arizona

Tankless Water Heaters in Phoenix, AZ

Our Phoenix work concentrates on the north side, the I-17 corridor up to the 303, where 1990s and 2000s slab homes in Desert View, Tatum Ranch, and Stetson Hills are replacing water heaters in waves.

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Same-day on most calls. Upfront pricing before any work.

Phoenix homeowners call Liberty for tankless water heaters because we're local to the Valley, licensed, and answer the phone 24/7. We focus on north Phoenix, Deer Valley, Norterra, and the I-17 corridor up to the 303. It's a mix of 1990s and 2000s tract homes and newer master-planned builds, all on slab and all fighting the same extreme hard water. We know this stretch of the city well. We'll show you the real problem, lay out your options in plain English, and quote it fair before we start. Done right the first time.

Our Phoenix work concentrates in the north valley, where Liberty already runs daily: Deer Valley, Norterra, Tatum Ranch, and the surrounding 1990s and 2000s subdivisions off Tatum, Cave Creek, and the I-17 corridor. These neighborhoods went up fast during the build boom, almost all slab-on-grade, with copper supply lines run beneath the slab. Those copper lines are now two to three decades old, and combined with Phoenix's hard water they're hitting the age where pinhole slab leaks start showing up: a warm spot on the floor, an unexplained spike on the water bill, or the sound of running water with every fixture off.

What we see on Phoenix plumbing

  • Aging copper in 1990s slab homes prone to pinhole and slab leaks
  • High demand for water heater replacement as 2000s units age out

More about plumbing in Phoenix

We cover Phoenix and the surrounding neighborhoods, Deer Valley, Norterra, Desert View, Tatum Ranch, Stetson Hills (ZIPs 85085, 85027, 85024, 85083, 85310), with the same upfront pricing and clean workmanship on every call.

How a Phoenix tankless water heaters call goes

  1. Gas & venting check

    Tankless needs adequate gas supply and sealed venting, we verify your line can feed it before quoting.

  2. Scale protection built in

    We pair every install with a softener or an isolation/scale-filter kit so AZ minerals don't choke it.

  3. Annual descale plan

    We set you up on a yearly flush so the warranty stays valid and flow stays full.

Tankless Water Heaters in nearby areas

AnthemAvondaleBellemontCarefreeCave CreekChino ValleyDesert HillsDewey-Humboldt

Tankless Water Heaters in Phoenix, FAQ

Is tankless worth it in Arizona?
Yes, if you stay on top of the annual descaling. Our hard water will clog an unmaintained unit fast. Put a softener in front of it and it's a 20-year appliance.
Can my gas line handle it?
More often than not the existing line is undersized for a tankless burner. We measure it and upsize if it needs it, and that's part of the quote.
Do I really need a water softener with a tankless heater in Phoenix?
Pretty much, yes. Our 16-20 grain water scales the narrow heat exchanger fast, and unsoftened water can ruin a tankless unit in a couple of years. Soften the water and descale it yearly and a tankless will reach its long lifespan out here.
How often does a tankless need to be flushed?
About once a year in our hard water, and more often if you don't have a softener. Units with isolation valves make the descaling flush quick. If yours doesn't have them, adding them is worth the trouble.
Will a tankless give me unlimited hot water for the whole house?
It won't run out of hot water, but flow rate is the limit. Run two showers and a dishwasher at once and you can outrun a single unit, especially in winter when the incoming water comes in colder. Size it right for your peak demand and it works.
Why does converting from a tank to tankless cost more than I expected?
Gas tankless units usually need a bigger gas line and a new sealed vent, and electric models can mean a major panel upgrade. Those home-infrastructure changes, not the unit itself, are what drive the retrofit cost. We'll size all of it up front.
Does a tankless work as well in Flagstaff as in Phoenix?
It works, but the incoming water up north runs colder, so the unit has to raise the temperature further. That drops its effective flow rate. A unit sized right for Phoenix may need to be bigger to do the same job in the high country.
Do you cover all of Phoenix or just the north side?
We focus on north Phoenix, where we're already working every day: Deer Valley, Norterra, Tatum Ranch, and the neighborhoods along the I-17 and Cave Creek corridors. Staying concentrated in the north valley means faster response and crews who know the housing stock and the water in these specific subdivisions.

Same-day serviceUpfront pricing before any work

(623) 551-9156Book a visit