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Tankless Water Heater Installation & Replacement in Phoenix & Surrounding Area
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
- Fair and honest pricing
- 4.7 star rating on Google…

On this page:
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.
Price
LOW COST
$2,000
HIGH COST
$9,000
Factors that affect your water heater installation cost
There are three main factors in furnace repair costs — read below to learn more:
- 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
Schedule Your Appointment in 3 Steps
1) Book The Appointment
First, contact the friendly and knowledgeable staff members at Patrick Riley | Isley’s! You can call us at (602) 286-0027 or schedule an appointment through our website. We service all of the Phoenix Metro area, including Mesa, Chandler, Gilbert, and the surrounding Salt River Valley areas.
2) Choose a Day and Time
We value your time, and that’s why we offer flexible scheduling options. Once you get in touch with us, our team will work with you to find a day and time that suits your schedule. Whether you prefer a weekday, weekend, morning, or afternoon appointment, we’ll make it happen.
3) Get a Reminder Call
When you book with Patrick Riley | Isleys, you won’t have to worry about when we’ll arrive at your door. We always provide a 30-minute courtesy call so you can have time to square away any pets and get ready for our arrival.