Liberty Plumbing
Painted view of Tempe, Arizona
Tempe, Arizona

Tankless Water Heaters in Tempe, AZ

Tempe's housing near ASU runs mid-century through the 1980s, with landlords holding a good share of it, and dropping a tankless water heater into stock that age takes more than mounting a unit on the wall.

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

Tempe homeowners call Liberty for tankless water heaters because we're local to the Valley, licensed, and answer the phone 24/7. Tempe is an established East Valley city, mid-century and 1970s-80s homes near ASU with newer infill scattered through. That older housing stock means galvanized and aging-copper repipes, sewer-root work, and plenty of rental-property plumbing. We've done a lot of it. When we look at your place, you'll get the truth about what's failing, your options laid out plain, and a fair price upfront before we start.

Tempe's plumbing reality is defined by age and turnover. The neighborhoods ringing ASU, from the mid-century ranches near downtown to the 1970s and 80s builds in south Tempe, were plumbed with galvanized steel and early copper that's now corroding from the inside out. Galvanized lines clog with rust until pressure drops to a trickle, and we still pull original galvanized out of Tempe homes weekly. Add decades of rental turnover, where deferred maintenance compounds because no owner-occupant catches the slow problems, and you get homes where a single repipe finally resolves years of mystery low-pressure and discolored-water complaints.

What we see on Tempe plumbing

  • Galvanized and aging-copper supply lines needing repipe
  • Mature-tree root intrusion in older sewer lines

More about plumbing in Tempe

We cover Tempe and the surrounding neighborhoods, Maple-Ash, The Lakes, Warner Ranch, Dava, near ASU (ZIPs 85281, 85283, 85284), with the same upfront pricing and clean workmanship on every call.

How a Tempe 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 Tempe, 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.
My older Tempe home has low water pressure everywhere, what's wrong?
That's the classic signature of galvanized supply lines rusting shut from the inside, common in Tempe's mid-century and 1970s homes. The corrosion narrows the pipe until flow drops at every fixture. A camera and pressure test confirms it, and a repipe to PEX or copper restores full pressure for good.

Same-day serviceUpfront pricing before any work

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