Tank or tankless, done right.
Water heaters are our specialty in Mesa, from fast repairs to full Navien tankless conversions with permits pulled through the city.
Water heaters work harder in the East Valley than almost anywhere. Hard water scales up tanks, and summer heat stresses every component. Prestige Plumbing repairs and replaces both tank and tankless units across Mesa. We diagnose honestly, quote in writing, and only recommend replacement when repair stops making sense.
Tankless is where we shine. We install Navien units and handle full tank to tankless conversions, including exterior mounts and gas upsizing when the meter and line need more capacity. Proper gas sizing, clean venting, and permits pulled through the city. That is how a conversion should be done.
- Tank and tankless repair, replacement and conversions.
- Navien tankless installs with permits pulled.
- Gas upsizing and clean venting handled in house.
- Free estimates and honest repair or replace advice.
Everything under water heater services.
Tankless conversions
We swap a failing tank for a Navien tankless unit, sizing the gas line so it performs.
Tank water heater replacement
Old tank out, new tank in, with proper venting, a fresh pan and code correct connections.
Water heater repair
Failed elements, thermocouples, gas valves and ignition faults get diagnosed and repaired instead of replaced by default.
Tankless descaling and service
Hard East Valley water scales heat exchangers, so yearly flushing keeps output steady and error codes away.
Exterior tankless mounts
Arizona weather allows outdoor mounting, which frees garage space and simplifies venting on a conversion.
Gas line upsizing
A tankless burner needs more gas than a tank, so we upsize the run from the meter.
Water heater flushing
Draining sediment once a year buys back capacity and slows the wear that kills tanks early.
Pressure relief valve repair
A stuck or weeping relief valve is a safety issue, and we replace it before it fails.
Recirculation line work
We service and plumb hot water recirculation so distant bathrooms stop running cold for a minute.
Commercial water heater service
Restaurants, salons and schools need hot water every hour they are open, and we keep it running.
Problems we solve.
No hot water at all.
Usually a failed element, thermocouple, gas valve or ignition fault. We diagnose the actual cause instead of quoting a new unit on arrival, and repair it when repair is the right call.
Running out of hot water fast.
Sediment from hard East Valley water eats tank capacity year after year. Sometimes a flush and new elements fix it. Sometimes the tank is done and a tankless conversion makes more sense.
Leaking tank or fittings.
A drip at a fitting is a repair. Water from the tank body means the liner has failed and replacement is coming. We tell you which one you have and what it costs.
Tankless units losing performance.
Scale builds inside tankless heat exchangers in our water. Error codes and temperature swings follow. We descale, service and repair tankless units, and we size gas lines correctly when output falls short.
Undersized gas for a new tankless.
Many conversions fail because the old gas line cannot feed a tankless burner. We handle gas upsizing from the meter out, so the new unit actually delivers what the box promises.
Signs it is time to call.
- Water takes longer to heat than it used to.
- Rusty or metallic tinted hot water at the tap.
- Popping or rumbling sounds from the tank.
- A pilot light that will not stay lit.
- Moisture or drips around the base of the unit.
- Error codes flashing on a tankless display.
How the job runs.
- 1
Diagnose the real fault.
We test elements, valves, venting and gas supply instead of guessing from the symptom.
- 2
Price it in writing.
You get a free written estimate with repair and replacement options side by side.
- 3
Install or repair it properly.
Correct gas sizing, clean venting, secure mounting and permits pulled when the city requires them.
- 4
Prove it works.
We run the system, check temperatures at the tap, and walk you through the settings.
Repair it or replace it.
A water heater does not always deserve a funeral. Age, the failed part and the condition of the tank decide it. We test before we quote, then show you both numbers so you can weigh a few more years against a fresh start.
Worth repairing when.
- The tank body is dry and only a part has failed.
- The unit is still comfortably inside its expected service life.
- A flush and new elements restore the capacity you lost.
- A tankless unit throws codes that clear after descaling and service.
Worth replacing when.
- Water is seeping from the tank body, not a fitting.
- Repairs keep stacking up on a heater near the end.
- You run out of hot water even after a full flush.
- You want tankless and the gas line can be sized for it.
What you get.
- Hot water comes back the same day in most repairs.
- Correct gas sizing means the new unit delivers the output you paid for.
- Permits pulled through the city protect you at resale.
- Yearly service buys years out of a heater in our hard water.
- You get repair and replacement prices side by side before choosing.
What moves the price.
Every quote is written down before the work starts. These are the things that change the number, so nothing on the invoice is a surprise.
- Whether the existing gas line can feed the unit you want.
- How far the heater sits from venting and a drain.
- Tank capacity or tankless output the household actually needs.
- A straight swap versus a full conversion with new venting and gas.
- Permit and inspection requirements when the city treats it as a new install.
Work like this, on real jobs.
More on Instagram
Jessie and Raul were great to work with as they had to replace the majority of our gas lines in the entire home. They were always on time and great communicators. They did an awesome job of cleaning up my landscaping after having to dig trenches all over.
Chad
Whole home gas line replacement, Google review, 2021
This company does beautiful work. You can tell they pride themselves on quality work. Their plumbers are very knowledgeable and honest. Even though they are very quick the quality and customer service does not lack.
Verified Google review
Quality of work, Google review, 2026
Professional. Punctual. Positive. Prestige. Their name says it all. Raul helped us with a plumbing situation during a bath remodel when the original plumber said it was too complicated. He was available right up to the end of the project.
John
Bath remodel rescue, Google review, 2020
Why homeowners call us for this.
Water heaters are our specialty, not a side line on the truck.
We install Navien tankless units and handle the full conversion in house.
Gas upsizing, venting and mounting all get done by the same crew.
Permits pulled through the city on conversions, so the install stands up.
Honest repair advice, even when replacement would pay us more.
Keep it from happening again.
- Flush the tank once a year to slow sediment buildup.
- Test the pressure relief valve so it does not stick shut.
- Set the thermostat near 120 degrees to slow scale and save energy.
- Descale a tankless unit yearly in our hard water.
Questions we hear a lot.
Depends on age, condition and the cost of the fault. A cheap part on a younger tank is an easy repair. A leaking tank body or a heater at the end of its life is replacement money better spent. We show you both prices and let you choose.
For many homes, yes. Endless hot water, less floor space, and no tank to fail and flood. Our hard water means yearly descaling matters, and the gas line must be sized right. We install Navien units and handle the whole conversion, permits included.
Yes. Exterior mounts are common in Arizona and we install them regularly. Mounting outside frees up garage or closet space and simplifies venting. We install to handle sun and weather and route gas and water lines cleanly along the wall.
When the city requires a permit, we pull it and the work gets inspected. Our tankless conversions go in with proper gas sizing, clean venting and permits pulled through the city. It protects you at resale and keeps the install honest.
Most conversions finish in a day when the gas line is already adequate. Add time when we upsize the gas run, move the unit outside or wait on a city inspection. We give you the schedule in writing with the estimate, before anything comes off the wall.
Once a year, and that is not a sales line. East Valley water is hard enough to coat a tank with sediment and scale a tankless heat exchanger in twelve months. Flushing a tank or descaling a tankless unit keeps output steady and pushes replacement further out.
Book water heater services today.
Call (480) 215-0629 any hour, or send photos of the problem and get a straight answer without waiting on a drive out.
Schedule an appointment.
Add photos of the work area and we can usually quote without a first visit.