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  • 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(
19
)
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

Conservative Energy Systems, Inc.
4.5(
152
)
Solar Water Heater System - Install

Serving Phoenix, AZ and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"Fast response took care of replacing my 20+ year old 120 gallon solar water heater. They ordered the water heater on a Monday afternoon had it installed by Thursday morning. It was not easy finding someone just to swap out a water heater that's for solar. Most plumbers shake in their boots when I mention solar, especially only a water heater swap-out."
Response time11 hrs
12 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Total Plumbing & Drain LLC
Total Plumbing & Drain LLC
5.0(
12
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Phoenix, AZ and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Total Plumbing & Drain LLC is a trusted local plumbing company providing reliable, high-quality service for residential and commercial customers. We specialize in water heater installation (including tankless systems), drain cleaning, water filtration, leak detection, and full plumbing repairs.\n\nOur team is committed to honest pricing, clear communication, and expert workmanship. We take the time to educate our customers and provide in-person estimates to ensure the job is done right the first time.\n\nServing the Arizona Valley, we’re here when you need dependable plumbing you can trust.

Tankless WH
Kitchen Upgrade
Kitchen Upgrade
Shower Valve Install
Water Softner

+9

4 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

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.

No, you’ll need to drain the tank before changing a water heater element, as the water heater element sticks through the side of the tank and uses a gasket to prevent water from pouring out. However, you don’t always need to drain it completely. If you’re only replacing the upper heating element, you can drain the tank until the water line is below the element. If you’re replacing the lower element, you’ll need to drain the whole thing.

No state requires you to vent an electric water heater. Other installation requirements for water heaters will vary, though, depending on the state and local jurisdiction in which you live. Some places require permits, while others don’t. Some may force you to place the appliance a certain distance from any walls or other appliances, while others don't. When you find a local professional to install a water heater, this expert will ensure you follow all the local regulations.

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.

The average water heater holds between 40 and 60 gallons, but the exact amount of water that comes out during draining will depend on your unit’s capacity. The amount of time it takes to drain a water heater averages from 10 to 30 minutes.

The Phoenix, AZ homeowners’ guide to water heater services

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