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Top-Rated Tankless water heater repair pros in Mesa - Updated Nov 2026

Avatar for Reddi Services
Reddi Services
4.7(
1,041
)
Tankless Water Heater - Repair

Serving Mesa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 1957

Free estimates

Emergency services offered

"Our outside drain was plugged causing the water from the house drains to backup through the bottom of the toilet and flood everything We called Reddi Services plumbing and they scheduled someone out within just a couple hours Their technician, Marco, was not only incredibly polite and attentive, but also very skilled, and he handled the entire repair in a very short time at an extremely reasonable rate"
Additional Photos
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Residential Advantage
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Cobra Rooter & Plumbing Service
Cobra Rooter & Plumbing Service
4.8(
314
)
Tankless Water Heater - Repair

Serving Mesa, AZ and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Gerry responded to a leak in my front yard watering system and was able to quickly come over so that I could keep a scheduled trip out of town. He did a great job repairing my watering system leak and also fixed my inoperable shut off valve. I also asked him to look at my hot water heater to determine why it wasn't heating effectively, and he easily spotted and fixed the problem.
He was a pleasure to work with! I will definitely use him again and highly recommend him.


"
Recommended by93%of homeowners
Avatar for Total Plumbing & Drain LLC
Total Plumbing & Drain LLC
5.0(
12
)
Tankless Water Heater - Repair

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

2 neighbors recently requested a quote
Avatar for Custom Plumbing of Arizona, LLC
Custom Plumbing of Arizona, LLC
4.2(
1,706
)
Tankless Water Heater - Repair

Serving Mesa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"The repair person went out of his way to come by my house at seven pm checked out the problem gave me a quote and set up an appointment to come back on Friday to replace my water heater. I would hire them again."
Custom plumbing best
Camera the lines before hydro jetting
Rooftop of Biltmore Hampton Inn
Wall hung toilet with designer flush valve
Sink installed to furniture piece

+45

Response time5 hrs
Response rate87%
2890 neighbors recently requested a quote
Avatar for AZ Premier Services
AZ Premier Services
5.0(
22
)
Tankless Water Heater - Repair

Serving Mesa, AZ and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I have lived in my house for 20 years and I have literally only ever called AZ Premier Services with plumbing issues of any kind. AZ Premier Services has replaced my water heater twice over the years and repaired several piping and valve issues. I recommend them wholeheartedly. They are prompt and reliable and have always quickly solved our issues."
Response time4 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Aquaco, LLC
4.5(
245
)
Tankless Water Heater - Repair

Serving Mesa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"I was highly impressed with the advice I received from Glenn, which I was advised to get with the home builder first to find out the specific cause of the problem with our tankless water heater, and then proceed from there to decide the action to take, if more additional work is required."
Response time1 day
Response rate95%
94 neighbors recently requested a quote
Avatar for Z PLUMBERZ of East Valley
Z PLUMBERZ of East Valley
5.0(
27
)
Tankless Water Heater - Repair

Serving Mesa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Emergency services offered

Small jobs welcome

"Had such a great experience with Z Plumberz of East Valley! I needed a new water heater and decided to go with a tankless one. I was a little nervous about making the switch, but the team was amazing from the start. They showed up right on time, super friendly, and walked me through everything so I felt totally comfortable. The install itself went really smoothly—they worked quickly but carefully, and you could tell they really knew what they were doing. Plus, they cleaned up after themselves, which I always appreciate. Now that it’s installed, the system works perfectly and I’m loving the endless hot water. Honestly, I’m so glad I went with Z Plumberz. They made the whole process easy and stress-free. If you’re thinking about getting a tankless water heater, give these guys a call—you won’t regret it."
Water Heater
1/2 Vacuum Breaker
Faucet Replacement
Hose Bib
Hose Bib

+15

Response time30 mins
Response rate99%
27 neighbors recently requested a quote
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