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What a water heater actually costs in Phoenix

The real installed numbers, what they include, and the two things they don’t.

· 3 min read · Judai Brothers

Gas water heater installed with an expansion tank mounted on the wall beside it

Nobody calls a plumber about a water heater on a good day. It’s usually a cold shower, or a puddle spreading across the garage floor, and the question underneath “how much is this going to be” is really “am I about to get taken advantage of.”

So here are our numbers. They are the same ones in the book the tech carries to your house, and the same ones on our pricing page — all 86 of them.

Tank water heaters, installed

40-gallon electric
$1,489
40-gallon gas
$1,589
50-gallon electric
$1,689
50-gallon gas
$1,789
75-gallon electric
$2,889
75-gallon gas
$3,189
You supply the heater, up to 50 gallon
$449
See all 86 rates

Tankless

You supply the unit
$1,289
Complete Rinnai gas tankless, 10+ GPM
$4,289
See all 86 rates

Tankless is a bigger job than swapping a tank — gas line sizing, venting, and often a new location on the wall — which is why the complete install sits where it does. It also frees up the floor space a tank was eating, never runs out of hot water, and typically outlives two tanks.

What the price includes

On a tank replacement, all of this is in the number above:

  • The water heater itself, delivered and installed
  • A new expansion tank
  • A new drain pan
  • New supply lines and a new shut-off valve
  • One-year warranty on parts and workmanship

Expansion tank, pan, and supply lines are the three items most commonly quoted separately after the fact. They are not extras — a replacement isn’t finished without them, so they belong in the price.

What it doesn’t include

Two things. They are also the two most common surprises in this trade, which is exactly why we name them up front.

  • Permit. Valley cities set their own fees and their own rules about what needs one. It’s a real cost, and it isn’t in the price above.
  • Haul-away of the old heater. A 50-gallon tank full of sediment is heavy, and disposing of it isn’t free.

Everything else is zero. No trip fee, no after-hours charge, and no charge for the estimate — including at 9pm on a Sunday.

Why the range is so wide

  • Capacity. A 40-gallon tank suits a couple or a small family. If you have teenagers and two bathrooms, 50 is the honest answer and 75 is not overkill.
  • Fuel. Gas heats faster and recovers faster; electric is simpler and cheaper to install. Whatever you have now is usually what you’re keeping — converting is a much bigger job.
  • Where it lives. A heater in an open garage is a straightforward swap. One wedged in an interior closet, or up in an attic, is not, and the price reflects the work rather than the appliance.

When a repair is the right answer

Not every dead water heater needs replacing, and we will tell you when it doesn’t. Electric units fail at the elements and the thermostat far more often than the tank itself gives out.

Electric service — elements, thermostat, anode rod, and flush
$389
Anode rod replacement
$189
Tank flush
$129
Tankless flush and descale
$139
See all 86 rates

The dividing line is simple. If it’s leaking from the body of the tank, it’s finished — no repair fixes rusted-through steel. If it’s wet at a fitting on top, that’s usually a connection, not the tank, and it’s a fraction of the cost.

How long yours has got

A tank heater is generally rated for around a decade. In Phoenix, plenty don’t get there, and hard water is why — see why water heaters die early in Phoenix for what actually happens inside the tank and the two maintenance items that push it back the other way.

Getting a number for your house

Estimates are free and there’s no trip fee, so having us look costs nothing. Book a visit online, or read the full water heater page first if you’d rather know what you’re getting into.

Want us to look at it?

No trip fee, no after-hours charge, and the estimate is free. Emergencies are answered 24 hours.

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