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

Avatar for Total Plumbing & Drain LLC
Total Plumbing & Drain LLC
5.0(
12
)
Tankless Water Heater - Install

Serving Phoenix, 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 Cobra Rooter & Plumbing Service
Cobra Rooter & Plumbing Service
4.8(
314
)
Tankless Water Heater - Install

Serving Phoenix, 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 Reddi Services
Reddi Services
4.7(
1,041
)
Tankless Water Heater - Install

Serving Phoenix, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 1957

Free estimates

Emergency services offered

"Gerald was extremely helpful in replacing the hot water heater and a toilet. There was no wait time and his recommendations were high quality products. He was efficient, very friendly and courteous. We will call him again if we have need of a plumber."
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 Phoenix, AZ and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"They showed up on time, made a minimal mess, did a quality job replacing 2 complete heat pumps systems and were very good about explaining everything along the way. They even filled out the rebates and sent them in."
Basha's Center
Indoor Air Handler
Crane moving an A/C
Crane time!
Roof view

+5

Response time7 hrs
Response rate100%
47 neighbors recently requested a quote
Avatar for Custom Plumbing of Arizona, LLC
Custom Plumbing of Arizona, LLC
4.2(
1,706
)
Tankless Water Heater - Install

Serving Phoenix, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Steve arrived when estimated and determined what needed to be done, left for a while and retuned with a very good water heater and drip pan and began the change out. He cleaned the area and hauled the old water heater away. The installation looked professional."
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
Aquaco, LLC
4.5(
245
)
Tankless Water Heater - Install

Serving Phoenix, 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 Rooter Ready Plumbing Solutions LLC
Rooter Ready Plumbing Solutions LLC
4.9(
51
)
Tankless Water Heater - Install

Serving Phoenix, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"i would like to thank Ready Rooter Plumbing & solution foe the work they did replacing my water heater. Topaz sent Kevin out to my houes and replaced nit just my water heater. but got all the damage covered by my insurance company."
Response time8 hrs
65 neighbors recently requested a quote
Recommended by14%of homeowners
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Showing 1-10 of 199

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