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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%
5 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

Most standard residential water heaters, which are typically around 40 gallons and use 240 volts and between 3,500 and 5,500 watts, require a 30-amp, two-pole circuit breaker. For smaller, point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts, a 30-amp breaker is also often adequate. However, some models may have different needs; units that use more watts than average may require a 40-amp breaker, while smaller units might only need a 20-amp breaker. Newer, tankless, or more energy-efficient models can also require a higher amperage. Having the correct breaker size is crucial for safe and efficient operation, so it's best to consult a licensed electrician to determine the specific needs of your water heater.

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.

There are many issues that can cause cold showers, but the most likely is a problem with your water heater, especially if other fixtures also don’t get hot water. If it’s just your shower not getting hot water, you likely have a broken or damaged shower cartridge. You can replace this yourself or hire a plumber to do the work for you if you’re not comfortable working with plumbing.

Replacing facilitates energy savings, decreases repair frequency, and aligns with modern safety regulations, maximizing safety.

Traditional gas or electric water heaters last an average of six to 11 years. However, with excellent maintenance, they can last up to 15 years. Heat pump water heaters, on the other hand, last an average of between 12 and 15 years and potentially longer with proper maintenance. In both cases, your home's water quality can be a determining factor regarding the lifespan of your water heater.

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.