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Top-Rated Tankless water heater installers in Mesa - Updated Nov 2026

Avatar for Local Plumbing LLC
Local Plumbing LLC
5.0(
42
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Credit card accepted

"I rarely give any service provider five stars but Jake of Local Plumbing LLC far exceeded my expectations. Having dealt with other plumbing companies, I found Jake’s service well above those I’ve previously dealt. He installed a Rinnai tankless water heater without any ‘uh-ohs’. He’s not Jake from State Farm, he’s even better."
Ceiling mount faucet
Boiler to tankless for apartment building
Master bathroom remodel
Master bathroom remodel
Tank to tankless instalation

+8

Response time12 hrs
Response rate96%
18 neighbors recently requested a quote
Avatar for Total Plumbing & Drain LLC
Total Plumbing & Drain LLC
5.0(
12
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Total Plumbing & Drain LLC is a trusted local plumbing company providing reliable, high-quality service for residential and commercial customers. We specialize in water heater installation (including tankless systems), drain cleaning, water filtration, leak detection, and full plumbing repairs.\n\nOur team is committed to honest pricing, clear communication, and expert workmanship. We take the time to educate our customers and provide in-person estimates to ensure the job is done right the first time.\n\nServing the Arizona Valley, we’re here when you need dependable plumbing you can trust.

Tankless WH
Kitchen Upgrade
Kitchen Upgrade
Shower Valve Install
Water Softner

+10

4 neighbors recently requested a quote
Avatar for Streamline Plumbing AZ
Streamline Plumbing AZ
4.9(
71
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Rich was prompt and highly communicative in advance of the first appointment to make sure I understood my options to replace my water softener. Once there, he did an extremely professional job an cleaned up perfectly after the job. During the water softener install, I mentioned that I had a leaky spigot valve in the backyard. Rich cut off the old one and welded on a new one that is working great. He charged me a minimal fee for the addon work since he was already on site. Here's the kicker and why I'd highly recommend Rich to anyone. During the install he talked about how he would come back without issue if there were any questions or issues. Well a couple weeks later, there turned out to be an issue. When the unit backwashed it dumped water onto my garage floor. This problem persisted. The second time it happened, I called Rich who we very willing to come back. It turns out my drainline, that had been put in by a previous provider had a kink which was causing it intermittently clog, causing the overflow of water in the garage. Rich found the issue and ran a brand new drain line through the attic. He was at my house for 3 hours to identify and resolve the problem. At the end he offered to not charge me, even though the drain line problem wasn't his fault. I insisted on paying him so he gave me a LARGE discount. I now consider Rich my go-to plumber. He'll get all my business moving forward."
Response time4 hrs
Response rate100%
Recommended by96%of homeowners
Avatar for Reddi Services
Reddi Services
4.7(
1,041
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 1957

Free estimates

Emergency services offered

"Gerald from Reddi came out same-day when we had a gas leak that required our natural gas to be shutoff. He spent over 30 minutes explaining all of the options available to me - where to route the new pipe, what to consider about replacing the water heater, etc. He took the time to answer my questions and get educated. I got other bids, but so glad we went with Gerald and Reddi. He and Brandon were able to knock out our job in less than a day, and there was a lot of work to be done! They worked hard and had great attitudes. We passed our city inspection with flying colors and are so grateful for the Reddi team that made this process a little less painful. Definitely recommend them and Gerald!"
Additional Photos
Additional Photos
Additional Photos
Residential Advantage
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Air & Water Mechanical Services, LLC
Air & Water Mechanical Services, LLC
4.6(
101
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"The only contractor that conducted an analysis of the house for heating and cooling load and checked the adequacy of the vents. The salesman was very competent and professional. The quality of the workmanship was excellant."
Basha's Center
Indoor Air Handler
Crane moving an A/C
Crane time!
Roof view

+5

Response time7 hrs
Response rate100%
51 neighbors recently requested a quote
Avatar for EZ Flow Plumbing, LLC
EZ Flow Plumbing, LLC
4.6(
50
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Andy at EZ Flo was PHENOMENAL!! He was so super to work with - you can tell he really enjoys what he does. He did everything as promised for the price promised. He sent me updates on his progress and even juggled his tasks around my painters. Prices were very fair and the work was exceptional. He explained everything in just the right amount of detail and I learned some great stuff about water hardness from him. This is probably the most positive experience I have had with a plumber."
Response time5 hrs
Response rate100%
Recommended by95%of homeowners
Avatar for Tucker Hill Air, Plumbing & Electric
Tucker Hill Air, Plumbing & Electric
4.3(
74
)
Tankless Water Heater - Install

Serving Mesa, AZ and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"High quality work, professional, trust worthy, took the time to explain everything to me; also educated me on my current hot water heater, pricing for a waterless hot water heater, & the issues related to my current gas hot water heater because of my water softener. I would highly recommend Jonathan Maynard from Tucker Hill Plumbing."
dual tankless
dual tankless
Jobsite
Toilet Install
Jobsite

+3

Response time1 day
63 neighbors recently requested a quote
Recommended by81%of homeowners
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