FAQ's - Step Up Plumbing

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

      EXCELLENT  
   Based on 27 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Robin Hitt 
 
 
 
 Trustindex verifies that the original source of the review is Google. Michael at Step Up Plumbing was the third plumber I called to fix my Navien tankless water heater.  His expertise in both plumbing and the Navien product was evident from the moment we started to communicate.  Michael was able to identify the issue quickly and contacted the manufacturer.  The entire unit (only 2 years old) was under warranty and the replacement was located at a nearby warehouse for same day pickup.  My home has been without hot water for 7 days due to inept and deceitful plumbers.  Red Eagle plumbing was inept and had no idea the entire unit was under warranty which resulted in a 5 day delay for a part that was not needed to repair the unit since the entire unit needed replaced.  Parker and Sons were called on day 6 to get the unit fixed and they graciously agreed to replace the unit for a mere $9800 and could do so the same day.  This company was deceitful in not mentioning the fact the tankless water heater was under warranty with no out of pocket expense to obtain the unit.  This was blatant deceit on their part and I will not do business with this company again.  They were 'happy' to help me out but wanted to charge for the unit which is still under warranty.  I couldn't be more grateful for Michael and his company.  He has saved me thousands of dollars in unnecessary expense repairs.  Michael is an honest and trustworthy plumber whom I am happy to refer friends and family too.
  
 
      Posted on Google  
   
   T L 
 
 
 
 Trustindex verifies that the original source of the review is Google. We didn’t end up having Michael do the work because he was so proficient in determining what the previous plumber had done wrong with our electric water heaters. Not only did he consult with the manufacturer of the heaters, he also told the previous plumber what he had done wrong and without both of those things we wouldn’t be getting our $7k issue resolved at no cost to us. This is what I call honest business. Hard to find honest people in any industry anymore and I can tell you all of our future needs will be brought to him first going forward.
  
 
      Posted on Google  
   
   Mr V 
 
 
 
 Trustindex verifies that the original source of the review is Google. Michael did a great job,
  
 
      Posted on Google  
   
   Debra Hawthorne 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had a great experience with Step Up Plumbing. Quality service for installing our tankless water heater. I would definitely recommend this company!
  
 
      Posted on Google  
   
   Matt Garcia 
 
 
 
 Trustindex verifies that the original source of the review is Google. After our old water heater rusted out and started leaking, we decided to make the jump to a tankless. After speaking with Mike, he had us scheduled for an appointment right away. We got lucky, as he had the unit we needed on hand, and installed it in a single day. We are very pleased with our new unit, as hot water hits the bathroom on the far side of the house very quickly, and we don't have to worry about running out! The tankless unit takes up so much less space in the garage, and is much more efficient than our old one. He even took away the old water heater so we didn't have to deal with getting rid of it. A great experience overall, and would highly recommend giving Step Up Plumbing your business!
  
 
      Posted on Google  
   
   H Sparks 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nice small business. Very straight forward and reliable.  Installed a tankless system after we had a water tank leak.  Would recommend.
  
 
      Posted on Google  
   
   Hector R 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our old water heater was close to rusting out. We decided to drop the hammer and go tankless, and all I can say is wow! It has been almost a year now. It is nice having hot water whenever and however long we need it. About a week after it was installed, we ran all three showers at the same time and nobody got cold water. My kids sometimes take very long showers; that is no longer a problem, as we will never run out of hot water. It has run flawlessly. Mike was fantastic. He was on time and very communicative about the whole process. Thanks again Mike!