Scottsdale Tankless Water Heaters

Upgrade to Endless Hot Water With a Tankless System

If you’re tired of running out of hot water or looking to lower your energy bills, a tankless water heater could be the perfect solution. Zest Plumbing & Drain installs and services tankless systems throughout Scottsdale, AZ, helping homeowners and businesses enjoy efficient, on-demand hot water. Unlike traditional models, tankless heaters only warm their contents as needed—saving space, energy, and time. Whether you’re making the switch or maintaining an existing system, we’re here to help you get the most out of your upgrade.

Our Tankless Water Heater Services

Tankless water heaters offer excellent performance and energy savings—but they need proper installation and care to work their best. Zest Plumbing & Drain provides full-service solutions, from new installations and replacements to repairs and regular maintenance.

Tankless Water Heater Installation: We install top-rated tankless systems designed to deliver reliable, energy-efficient hot water. Our team ensures your system is correctly sized and professionally installed for long-term performance.
Tankless Repair Services: If your unit is delivering lukewarm water or showing error codes, we’ll diagnose the issue and fix it fast. Our team is experienced with all major tankless brands.
System Flushing & Maintenance: Over time, mineral buildup can reduce your tankless heater’s efficiency. We offer professional descaling and annual tune-ups to keep your system running at peak performance.
Upgrades From Tank to Tankless: Ready to make the switch? We’ll walk you through the process and handle all necessary plumbing and venting updates to get your new system up and running.

Plumbing Emergency in Arizona?

When you have a plumbing emergency in Arizona, there is no time to waste. Access our online booking 24 hours a day, 7 days a week!

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Why Choose Zest Plumbing & Drain for Tankless Water Heaters?

Choosing a tankless water heater is a big decision—and Zest Plumbing & Drain is here to make it simple. With years of experience and a dedication to honest, top-quality service, we help Scottsdale residents enjoy worry-free hot water with systems that save space, energy, and money. From consultation to installation, we’re with you every step of the way.

Service Rooted in Scottsdale Expertise: We understand the unique demands of local homes and pride ourselves on fast service, friendly technicians, and lasting solutions.
Specialized Installation and Support: Our team knows tankless systems inside and out, ensuring expert installation and dependable performance for years to come.
Smarter Energy Savings: We’ll match you with the right model for your home’s needs, helping you cut utility costs while boosting overall efficiency.
Straightforward Pricing and Honest Guidance: No confusing jargon or pushy upsells — just clear advice, detailed quotes, and a smooth experience from start to finish.
24/7 Emergency Availability: Plumbing issues don’t keep business hours, and neither do we. Our team is ready around the clock to handle urgent needs and restore your comfort fast.

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Frequently Asked Questions

Zest Plumbing & Drain has a knowledgeable and experienced team that can help answer a variety of questions you may have.

Customer Testimonials That Shine

Over 1275 Reviews!

Brett

1 day ago

fixed leaking faucet. explained all up front clearly. knob turns just like new. 1 year warranty.

Gene Malowany

3 days ago

I love experienced people. Wally is a caring and empathetic individual who is also—and this is the most important thing for me—genuine. No hard sell, just discussions on appropriate ways to solve solutions. Rare. We will always ask for Wally in the future.

Steve Reiter

3 days ago

Wally did a great job repairing our valve. He was very knowledgeable and has a great attitude. Highly recommend Zest!

Rick Lahaye

7 days ago

Hot water replacement, Jason was awesome and on time, very professional. This is a great company.

James Dillon

1 week ago

Technician, Jason Taylor, was excellent. The job was priced (with a few options) and explained very well. Jason has great work ethics (very efficient). My confidence in Zest Plumbing (Affordable Plumbing) was reinforced through this job completion. Satisfied Customer. James (Jim) Dillon Scottsdale, Az.

Debbie Kahn

1 week ago

Very nice and came quickly and worked fast!

Dave Hawkins

2 weeks ago

Wally arrived on time, and cleared roof drains. Great guy, highly recommend.

Aron Russell

2 weeks ago

A phenomenal service experience from start to finish, with quality craftsmanship to back it up. After finding myself Involved in a bit of a plumbing emergency at 10 PM, I stumbled upon the phone number for Zest Plumbing. The kind woman I had the pleasure of speaking with, whose name is escaping me, booked my appointment in an instant. Shortly after, I was pleasantly surprised in receiving some very welcome advice, which helped to mitigate any further damage. The assigned technician, Len Gibbs, Arrived promptly the next morning, three minutes prior to the set arrival time of 8 AM. He was quite patient while I wrangled my dogs into the house, and was thorough with his explanation, and efficient in the completion of task. With a remodel on the homegirls horizon, I’ll have additional work that I’m more than happy to provide to the team at Zest Plumbing.

Rachel

2 weeks ago

Lloyd was on time, personable, and quick to fix my issue!

William Drobnes

2 weeks ago

Excellent, professional, friendly service.as is the case every time. We have a nice new modern hot water heater We highly recommend Zest Plumbing

Jim Clary

3 weeks ago

Outstanding service. I called and they had a plumber to my house within the hour. Fixed the issue quickly and in a very professional way. This firm is highly recommended,.

Journey Films

3 weeks ago

This plumbing company is amazing. What a find. Had a pipe backup problem in my laundry room. I got their name from a neighbor who raved about them. They make it so easy on their website to request service. Quick, easy, painless. Wally came out the very next day. He explained what was going on, and the problem pipe was fixed! Not only that, but he saw a potential problem and told us how to handle it!!! We’re so glad we found Zest!!!! Would totally trust them to handle any plumbing need!

Robbianne Gramer

3 weeks ago

It started with Dianna the scheduler, she was amazing at deciphering the real questions that needed to be addressed. I am a new homeowner with a tankless water heater! She guided me to Len who was very good at teaching me all that I needed to know about this system. He went above and beyond and I really appreciated his honesty and ability to get to the bottom of the issue. Thanks!

Brutus Drobny

4 weeks ago

Outstanding job. Wally is fantastic! Wasn’t cheap but replaced a failed hot water tank and corrected a number of things that were done incorrectly when my previous water heater was installed. Will use again.

Dennis Kaufman

4 weeks ago

All good. 5s all around. You are our plumber

Brent Hewett

4 weeks ago

I highly recommend Zest Plumbing. I made an appointment on-line at 7:00AM to have my failed water heater replaced and it was completed by noon the same day. The process was seamless and they went above and beyond to accommodate my needs. Jason Taylor the technician was fantastic, extremely knowledgeable and efficient.

Tony Cline

1 month ago

Wally has highly professional and knowledgeable. His work was exceptional and we would not hesitate to use Zest again in the future.

pam bryan

1 month ago

Zest is now my company for all my plumbing needs. I have had several of the biggest names in the valley serve my property. Zest and especially Wally are the best- not even a close second. Prompt. Professional. Courteous. Respectful of property. Fair pricing. Solves the problem. What else is there?