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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(
21
)
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%
3 neighbors recently requested a quote
Avatar for Benjamin Franklin The Punctual Plumber
Benjamin Franklin The Punctual Plumber
5.0(
27
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+1 more

Serving Phoenix, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"They replaced my tankless water heater, under sink valves with quarter turn ball valves and three toilets. The price was fair, a little high, but the quality of work and service was excellent. These plumbers know what they are doing. They were timely and had good communication."
Navein Tankless
Navein Tankless
Another Tankless
Heating & Treating
All Things Plumbing!

+11

Response time4 hrs
123 neighbors recently requested a quote
Recommended by44%of homeowners
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%
47 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

A tankless water heater with a flow rate of 10 GPM should replace a conventional 50-gallon water heater. To avoid a surprise cold shower or two and to keep your energy costs in check, it's important to replace a conventional tanked water heater with the equivalent tankless water heater. Your household size and the number of hot-water-using devices you use at once can help you determine the best-size tankless water heater.

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. 

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

A single shower consumes an average of over 17 gallons, while brushing your teeth with the water running uses up to four unnecessary gallons. Watering the lawn spreads hundreds of gallons of water across the yard each time. Limiting water usage in these areas can significantly cut down your water bill.

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

Due to the high temperature, using stainless steel vent pipes for your tankless water heater’s exhaust vent is best. Also, it is safe to use a flexible vent duct as the exhaust fan. If installing the exhaust fan yourself, make sure you are using heat-resistant silicon to connect the exhaust vent and the duct on 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.