Tankless Water Heater Installation in Phoenix
Endless Hot Water Starts Here
If you’re tired of cold showers, cramped garage space, or high energy bills, you’re in the right place.
We specialize 100% in tankless water heater installs and service— because that’s where we deliver the most value.
5-star rated on Google (25+ reviews)
LICENSED / BONDED / INSURED
ROC# 296856
Benefits of Tankless Water Heaters
Why Choose A Tankless Water Heater?
Experience the future of water heating with these incredible benefits
Endless Hot Water
Never run out of hot water again. Enjoy continuous hot water for multiple showers, laundry, and dishes simultaneously.
15-Year Warranty
Rest easy with industry-leading warranty coverage. We stand behind every installation with manufacturer-backed protection.
97% Efficiency
Save on energy bills with tankless technology that only heats water when you need it, reducing waste and environmental impact.
Saves Space
Compact wall-mounted design frees up valuable floor space in your garage or utility room for storage or other uses.
Adds Value
Increase your home’s resale value with modern, energy-efficient tankless technology that appeals to today’s buyers.
Great for Snowbirds
Perfect for seasonal residents with push-button shut-off feature for peace of mind when you leave town.
Licensed, Bonded, & Insured
Meet Michael - Your Tankless Pro
I have been a journeyman plumber for 30 years, and I’ve been specialized in tankless water heater installation and service for over 10 years. As Mesa’s premier tankless specialist, we bring unmatched expertise to every home we service.
Unlike general plumbers who occasionally install tankless systems, this is our sole focus. We understand the unique requirements of Arizona homes and provide customized solutions for every customer.
“You’re not getting a technician. You’re getting a certified Navien specialist with over 15 years of experience dedicated exclusively to tankless water heaters.”
LICENSED / BONDED / INSURED
ROC# 296856
Tankless Water Heater Costs
Transparent Pricing
No salesmen. No surprises. Just honest, upfront pricing for quality work.
| NAVIEN TANKLESS MODELS | PRICE 3%* DISCOUNT ON CASH |
Gallons per Minute (GPM) | Size of Tankless for Number of Baths in the House | Reasons for this tank use |
|---|---|---|---|---|
| NPE 150S Replaces a 40 Gallon Heater |
$4147 $4292* |
4.3 – 5.9 | 1–2 Baths | Mobile Home or Condo Endless Hot Water and Gain Lots of Space Back |
| NPE 180S Replaces a 50 Gallon Tank Heater |
$4297 $4447* |
5.3 – 7.4 | 2–2½ Baths | Same warming time to fixtures as a Tank Heater but offers Endless Hot Water at 120+ degrees |
| NPE 180A A Models include a Buffer Tank, internal recirculating pump/timer |
$4756 $4922* |
5.3 – 7.4 | 2–2½ Baths | All A Models include Recirculating Tee for this price so you get Hot Water faster to your fixtures |
| NPE 210A Replaces a 50–75 Gallon Tank Heater |
$5219 $5401* |
6.4 – 8.8 | 3–3½ Baths | Also used on a 2-bath house which has a Body Spray Shower |
| NPE 240A Houses that have a 75+ gallon tank heater (3–4.5 Bath) |
$5378 $5566* |
7.1 – 9.8 | 3–4½ Baths | Used on 3+ baths. Can also be connected to another 240A and used to heat a Four Plex |
*Includes 3% cash discount
Water Softener
Upgrade to a Smarter, Greener Water Softener
Tired of battling hard water, scale buildup, and wasted salt? Our Green Softeners are built for efficiency, longevity, and performance—perfect for Arizona’s toughest water.
Why Homeowners Love Green Softeners:
- Uniform Bead Resin – Uses 50% less salt than standard softeners
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Green Control Valve – Regenerates only when needed, cutting salt and water waste
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Advanced Technology – Keeps the resin bed clean and efficient for longer
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Eco-Friendly – No harsh chemicals, better for your home and the environment
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Made in the USA – Built tough, backed by proven tech
Are you a seasonal resident?
Tankless is Perfect for Arizona Snowbirds
Leave town with peace of mind. Just push a button to turn off your tankless water heater—no draining, no flooding risk, no worries. And if something ever goes wrong, your unit can notify you directly through your phone via Wi-Fi.
Simple one-button shutdown when leaving
No standing water when system is off
Remote monitoring options available
Tankless Water Heater Details
Frequently Asked Questions
How does a tankless water heater work?
A tankless water heater heats water on demand rather than storing it. When you turn on the tap, cold water flows through the unit and is instantly heated — giving you an endless supply of hot water without the need for a bulky tank.
Is a tankless water heater really more energy-efficient?
Yes. Because it only heats water when needed, a tankless system can be up to 30% more efficient than a traditional tank — helping reduce your energy bills over time.
How long does installation take?
Most installations are completed in one day. We remove your old tank, install the new system, and test everything to ensure it’s working perfectly — all in a single visit.
Is Step Up Plumbing licensed and insured?
Yes! Step Up Plumbing is fully licensed, bonded, and insured. You can have peace of mind knowing your installation is handled by professionals who meet all local and state requirements. We take your home and safety seriously — no shortcuts, ever.
What size tankless water heater do I need?
It depends on the size of your home and how many bathrooms you have. Don’t worry — we’ll assess your needs and recommend the best system to ensure consistent hot water flow.
What’s included in the installation price?
Our pricing includes:
- Removal of your old tank
- Labor, parts and tax
- Guaranteed set price, no hidden fees.
What’s the lifespan of a tankless water heater?
With proper maintenance, a tankless unit can last 20+ years — nearly double the lifespan of a traditional water heater. A regular tank in Arizona lasts only 8-10 years.
Plus, Navien Tankless has a 15 year warranty. While Regular Tank Heaters only have 6 years and a decreasing prorated policy.
Do tankless water heaters require maintenance?
Yes, it’s recommended to flush the system annually to prevent mineral buildup. We offer affordable maintenance plans and can guide you through the process.
What happens if I go away for the summer or a long vacation?
Perfect for snowbirds! Tankless systems are less prone to flooding, and some models have built-in timers and recirculation features for low-maintenance efficiency while you’re away.
What warranty is included with Navien tankless water heaters?
The warranty on tankless water heaters are good for 15 years, and regular tank heaters have a pro-rated warranty that decreases in value over the course of 6 years.
What areas does Step Up Plumbing service?
We service the majority of the towns in Arizona including: Mesa, Gilbert, Chandler, Paradise Valley, Scottsdale, and surrounding areas
Tankless Water Heater Installation in Phoenix
Ready for Endless Hot Water?
Contact Valley’s tankless water heater specialist today for a free consultation.
Service Area
Mesa, Gilbert, Chandler, Paradise Valley, Scottsdale, and surrounding areas
Hours
Monday – Friday: 7am – 6pm
Saturday: 8am – 2pm
24/7 Emergency Service
Our Guarantee
100% satisfaction guaranteed on all installations, services and pricing on water heaters