Patrick Riley Cooling Heating & Plumbing, LLC | Isley's Home Service
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Tankless Water Heater Installation & Replacement in Phoenix

Tankless Water Heater Installations—Done the Right Way

When you need a new tankless water heater, you want peace of mind that it will be installed correctly. Our highly trained plumbers always provide safe, high-quality installations. Plus, they'll help you choose the right unit for your hot water needs.

We also offer:

  • Upfront, honest pricing

  • 100% satisfaction guarantee on all of our work

  • Flexible scheduling

  • 4.7 star rating on Google…

What's Included

Your tankless water heater installation includes:

  • Professional recommendations

    Choosing a tankless unit with the correct flow rate for your hot water needs can be confusing. Don't worry, we can help. Our plumbers will assess your normal hot water usage, then match you with a correctly-sized tankless unit.

  • Upfront pricing

    Before we do any work, we'll give you an honest price upfront—and we'll stick to that same price when we give you the bill.

  • Flexible financing options

    Worried that this new water heater is going to break your budget? We can help with flexible financing.

  • 100% satisfaction guaranteed

    If you're not totally happy with our installation work the first time, we'll redo the job on our own dime.


Cost to install a tankless water heater in Phoenix

Low cost $5,000
Average cost $7,000
High cost $9,000
Pricing Curve

Factors that affect your water heater installation cost

  • Water heater type: Whole-home tankless units provide hot water to all plumbing fixtures in your home, while point-of-use (POU) units only provide hot water for a single appliance or area (like the kitchen or laundry room). Some homes just need one whole-home unit. Other homes require a whole-home unit paired with multiple POU units to support hot water appliances that are too far from the whole-home unit, or to support appliances that have high flow rates (like a shower). The more units you need for your home, the more you'll pay.
  • Fuel type: Natural gas tankless units are more expensive upfront compared to electric tankless units, but natural gas tankless units are also cheaper to operate (which means lower energy bills).
  • Flow rate: Flow rate refers to how many gallons of hot water the unit can provide in a minute. The higher the flow rate, the more expensive the tankless unit. Our plumbers will help you determine what flow rate you need for your family's hot water needs.
  • Labor factors: If the plumber needs to add a gas line or modify your home's plumbing, then the cost to install your tankless unit will increase.

How Scheduling Works

Replace your tankless water heater in 3 steps

  1. Contact us

    Schedule an appointment online or give us a call (602) 280-1793.

  2. Choose a day and time

    We're flexible—we do our best to work around your schedule.

  3. Get a reminder call

    When our plumber is 30 minutes away, they'll give you a call to let you know they're on their way.

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