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TRUSTED BY PHOENIX, AZ HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon35
    Verified water heater services reviews

Top-Rated Water heater pros in Phoenix - Updated Nov 2026

Avatar for Water Heater Proz LLC
Water Heater Proz LLC
5.0(
20
)
Water Heater - Install or Replace

Serving Phoenix, AZ and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Jeremy was very responsive and informative. I had a couple of other quotes that involved various iterations of "replace the old water heater and add these other features at the same time", and we were able to talk through the suggestions and determine what was really necessary. The final quote was very competitive, the new water heater is working great, and the installation itself was fast and without any problems that they couldn't solve without me!"
Rheem Warranty
Tight Spaces
Code approved
Water Heater Proz
Bradford White

+23

Avatar for Cobra Rooter & Plumbing Service
Cobra Rooter & Plumbing Service
4.8(
314
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Phoenix, AZ and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Such great service!! My water heater went out in my rental property and they were able to hop on the phone with me right away and offer me a quote. Within the next 2 hours someone was at the property - they removed the old water heater and installed a brand new one and were on there way. Cobra Rooter & Plumbing was professional and quick! Will use again in the future."
Recommended by93%of homeowners
Avatar for Reddi Services
Reddi Services
4.7(
1,041
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Phoenix, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 1957

Free estimates

Emergency services offered

"Needed to replace hot water heater and mentioned that when the service call was made and asked that they come to the house with the replacement. They came to do an estimate and wasted three hours after I approved the estimate as he had to go pick up the water heater."
Additional Photos
Additional Photos
Additional Photos
Residential Advantage
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for High Speed Plumbing AZ
High Speed Plumbing AZ
5.0(
36
)
Water Heater - Install or Replace

Serving Phoenix, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"My husband is ill and I needed help. My water heater wasn't working so I called High Speed Plumbing. Donald was wonderful ! He arrived earlier than expected and was very personable. He found the problem quickly and replaced the water heater and some electrical problems. I had smelled plastic burning so I was very concerned. I now have hot water and am not concerned about a fire hazard. I would recommend this company and will call Donald the next time I have an issue. Great experience !!"
Plumbing
Response time40 mins
Response rate99%
4 neighbors recently requested a quote
Avatar for Air & Water Mechanical Services, LLC
Air & Water Mechanical Services, LLC
4.6(
101
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Phoenix, AZ and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"The only contractor that conducted an analysis of the house for heating and cooling load and checked the adequacy of the vents. The salesman was very competent and professional. The quality of the workmanship was excellant."
Basha's Center
Indoor Air Handler
Crane moving an A/C
Crane time!
Roof view

+5

Response time7 hrs
Response rate100%
51 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

Yes, you can replace a current tank water heater with a tankless model or vice versa. If you’re maintaining the same fuel source—gas or electricity—the switchover should be smooth. A conventional tank requires open floor space, while a tankless model can be wall-mounted. If you’re switching to a tank water heater, you might need to clear space for it. Gas-powered tankless water heaters need a large volume of gas when they start running to heat the water instantly. You might need to increase the size of the gas line when going from a tank to a tankless model.

It’s important to find the type of water heater that fits your needs and budget. Depending on the type of water heater, size, brand, and the type of energy you use to heat the water, costs range from a few hundred dollars to several thousand. Some of the most common types of water heaters include:

  • Electric: $600–3,500

  • Gas: $700–$2,700

  • Propane: $700–$2,500

  • High efficiency: $1,500–$3,000

  • Indirect: $1,200–$3,500

  • Hybrid heat pump: $1,200–$3,500

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

There are pros and cons to tankless water heaters. They are more efficient than traditional tank water heaters, and maintenance costs are lower. These units are also much more compact. On the other hand, they cost about twice as much to install as traditional tank water heaters and are more limited in terms of flow rate.

Several signs indicate your water heater may be failing or in need of replacement. Key indicators include:

  • Age: A water heater older than ten years is approaching the end of its typical lifespan.

  • Water Quality: If you notice rusty or discolored water from your hot water faucets, or a foul odor similar to rotten eggs or sulfur, it can signal internal corrosion.

  • Unusual Noises: Banging, rumbling, or popping sounds from the tank often mean sediment has built up, causing the unit to overheat.

  • Leaks: Any water pooling around the base of the tank or visible leaks are clear signs of failure.

  • Performance Issues: A decline in performance, such as water not getting hot enough, taking longer to heat up, low water pressure, or decreased efficiency, suggests the unit is struggling.

  • Visible Damage: Obvious rust and corrosion on the exterior of the tank can indicate a more serious internal problem.

While these signs often point to replacement, some issues may be fixable. It's best to consult a professional plumber to diagnose the problem before investing in a new unit.

The Phoenix, AZ homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.