
Zest Plumbing & Drain repairs tank and tankless water heaters in Scottsdale at published flat rates: both electric elements $478 with the tank drained and cleaned, both thermostats $347, thermocouple $319, gas control valve from $737. No trip charge, no service call fee. Licensed, bonded and insured, ROC 310821.
Most water heaters give a warning before they quit. Here is what the symptom usually means, and what we do about it.
Gas or electric, tank or tankless, any brand. If it can be repaired safely, we repair it. If replacement is the better call, we say so and show you the numbers.
Every repair is priced flat, before any work starts. What it costs depends on the part that failed and the type of unit. These are our standard prices.
| Water heater service | Zest price |
|---|---|
| Tank water heater flush and clean | $176 |
| Anode rod replacement | $347 |
| Tankless flush and descale | $310 |
| Tankless diagnostic (only when the unit has to be tested to find the fault) | $179 |
| Electric water heater elements, both (tank drained and cleaned) | $478 |
| Electric water heater thermostats, both | $347 |
| Full electric rebuild, both elements and both thermostats | $694 |
| Gas control valve | from $737, depending on model and brand |
| Thermocouple | $319 |
| Pilot relight and safety check | $176 |
| Expansion tank | $417 |
| Drain pan | $267 |
| Tankless repairs (flow sensor, igniter, heat exchanger) | $350 to $950, quoted after diagnosis |
| Water heater replacement (tank, installed) | $2,195 electric, $2,395 gas |
Standard price before discounts: 20% military, 15% Zest Protection Plan members, 10% seniors. One discount per visit. Current offers. No trip charge, no service call fee. You are paying for a stocked van, a licensed plumber, and the experience that finds the fault fast, not for the minutes the wrench is turning. Read how our pricing works.
There is a shortcut in this trade called jumping it in: shut off the water, relieve the pressure, pull the old element, and throw the new one in fast before too much water escapes. It works, and it is why some element quotes look low.
But it leaves behind the thing that killed your element in the first place. In Scottsdale's hard water, calcium collects at the bottom of the tank, and a lower element buried in scale burns out early. If your home has no water softener, or it has not been working, the buildup is worse.
Our $478 element replacement includes:
Both elements replaced for $478, with the tank drained and cleaned before the new elements go in.
Under 8 years old, a water heater is usually worth repairing. From 8 to 12 years it depends on the condition of the tank and the size of the repair. Over 12 years, or leaking from the tank body at any age, replacement is the better use of your money. When that is the answer, water heater replacement in Scottsdale is $2,195 electric or $2,395 gas, installed, unit included.

We got a morning call from a homeowner near Scottsdale Rd and McDowell Rd, in the 85257 area of south Scottsdale, whose 50-gallon electric water heater had stopped making hot water the way it should. The tank itself was only a few years old, which surprised the homeowner, but the moment we pulled the heating elements the cause was obvious. They were caked in calcium. The home had no water softener, and Scottsdale's water runs 16 to 20 grains per gallon, which is hard enough that even a newer tank can scale up fast. That white crust in the photo forms right on the elements, wraps them in mineral, and makes them work harder and harder until they fail.
Because the tank was still in good shape and only a few years old, the right call was a rebuild rather than a full replacement. We swapped both heating elements and both thermostats, flushed the tank, and had hot water running again the same day. The homeowner had a firm flat-rate price in hand before we started, and there was no trip charge for us to come out and diagnose it. We also walked them through how a water softener would protect the new elements, since the same hard water that scaled the old ones will go to work on these too.
This repair was handled by Walter, one of our plumbers with more than 20 years of experience.
An active leak or a house with no hot water does not wait for business hours, and neither do we. Call 480.618.1750. After hours it is handled as emergency plumbing, with no after-hours fee and no trip charge.
Per Southwest Gas guidance, if you suspect a natural gas leak, leave the area immediately. From a safe location, call 911 and notify Southwest Gas at 877-860-6020 immediately.
Once the repair is done, an annual water heater flush and clean is the cheapest way to keep the next set of parts alive in Scottsdale water.
It depends on where the leak is. Leaks from the pressure relief valve, the inlet and outlet connections, the drain valve, or the supply lines are repairable. A leak from the bottom of the tank itself means the tank has corroded through, and no repair makes that safe. We find the source before recommending anything, so you get a straight answer about what is actually fixable.
In Scottsdale this is almost always mineral sediment. The water here runs 16 to 20 grains per gallon, and that calcium settles on the tank floor. Water trapped under the sediment boils through it and makes the noise. A flush and clean is $176 and fixes it when the sediment is still loose. When it has baked in for years, we tell you honestly whether a flush will make a difference.
Our repair prices are published on this page. A tank flush and clean is $176. Both electric heating elements are $478 with the tank drained and cleaned first, both thermostats are $347, and a full electric rebuild is $694. A thermocouple is $319 and a gas control valve starts at $737 depending on the model. Tankless repairs run $350 to $950 after diagnosis. Every price is the standard price before the 20% military, 15% Zest Protection Plan, or 10% senior discount. There is no trip charge and no service call fee.
Sometimes. From 8 to 12 years it comes down to the condition of the tank and the size of the repair. A 10-year-old tank in a Scottsdale home without a water softener has taken far more mineral stress than its age suggests, and may be closer to the end than the calendar says. If the tank is sound and the repair is a thermostat or a thermocouple, repair it. If the tank is rusting or the repair is a gas valve on a tired unit, replacement at $2,195 electric or $2,395 gas is usually the better money.
Yes. Ignition failures, error codes, scaled heat exchangers, flow sensors, venting, and gas pressure problems are the common ones. Scale inside the heat exchanger is the number one tankless failure in Scottsdale, which is why a yearly flush and descale matters. Tankless repairs run $350 to $950, and the $179 diagnostic is charged only when the unit has to be tested to find the fault.
No trip charge, no dispatch fee, no fuel surcharge, and no diagnostic fee on tank water heaters. The only diagnostic charge we have is $179 on tankless units, and only when the unit has to be tested to isolate the fault. Your plumber tells you before that happens, and you get the full repair price before any work starts.