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Top-Rated Tankless water heater installers in Hampton Bays - Updated Nov 2026

Avatar for Mayjac Plumbing, Inc.
Mayjac Plumbing, Inc.
4.6(
15
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2015

Small jobs welcome

Offers commercial services

"For years I have wanted to update my very old and inefficient American Standard cast iron boiler. I was very fortunate to find Mr Joe Burriesci the owner of Mayjac Plumbing who took the time to evaluate the best options, since the old boiler handled two apartments. We collectively decided to go with two Navien Combi Condensing Boilers, but the best part of the entire process was how meticulous the installation was done. From start to finish Mayjac Plumbing kept every promise and timeline made. I highly recommend Mayjac Plumbing..."
Before Installations
After installations
Whole House PVC Piping 7
Whole House PVC Piping 6
Whole House PVC Piping 5

+16

Response time10 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Benitez Remodeling
Benitez Remodeling
4.7(
13
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

With over 20 years of experience in the construction industry, Benitez Remodeling proudly provides professional plumbing, home remodeling, restoration, and property recovery services for residential and commercial properties. From kitchen and bathroom renovations to plumbing repairs, interior and exterior improvements, and property restoration, we have the experience and expertise to get the job done right. We take pride in quality craftsmanship, dependable service, and treating every property as if it were our own. Contact Benitez Remodeling today for all your plumbing, remodeling, and restoration needs. We look forward to working with you!

Profile Picture
Recommended by75%of homeowners
Avatar for Benitez Remodeling
Benitez Remodeling
4.7(
13
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Our experience with this company was very good. Their team of workers are professional and courteous. We had a tree deck installed. It came out beautiful and we are very happy with the outcome."
Project
Response time3 days
8 neighbors recently requested a quote
Recommended by75%of homeowners
Tri Seasonal Plumbing, Inc.
New to Angi
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

Avatar for South Shore Plumbing and Heating, Inc.
South Shore Plumbing and Heating, Inc.
4.8(
114
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"This was the second time using South Shore Plumbing & Heating they installed a tankless water heater for me in March. 2020 and today Nick located and fixed a pin hole pipe leak under my house cement slab. From the time Nick started to make his first cut in my Sheetrock he used a level to make sure he was cutting a straight line ( thatâ s a professional who take pride in his work) when he drilled to open up my slab he made a small hole that was right where the pipe leak was. Cut out the bad pipe and installed new section of pipe no leaks and Nick re- cemented the hole closed and clean up all the debris. Anyone who needs excellent plumbing or heating call South Shore Plumbing and Heating ."
west hampton alpine
sunrise
Laars Combi
Peerless oil boiler
Peerless oil boiler 2

+7

Response time9 hrs
Recommended by99%of homeowners
Avatar for APV Mechanical Inc
APV Mechanical Inc
4.8(
89
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"Anthony was wonderful. Very nice to deal with and talk too loved him. Highly recommend him! And his team of guys were great also. He came back to do our gas fireplace for us also. His pricing is great! And great job done. It was supposed to be two days to do the central air he asked to stay later and was done in one full day. Like I said Anthony's the BEST!!!
"
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+2

Recommended by91%of homeowners
Avatar for Braido Heating & AC
Braido Heating & AC
5.0(
25
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

In business since 1978

Emergency services offered

Credit card accepted

"Heater was making a knocking sound and of course it was the holiday season. Braido came out right away and found a fan part needed replacement. The parts vendor was closed but they came out the next available day and had everything running smooth."
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Recommended by100%of homeowners
Avatar for MFS PLUMBING AND WATER HEATER CO.
MFS PLUMBING AND WATER HEATER CO.
5.0(
17
)
Tankless Water Heater - Install

Serving Hampton Bays, NY and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"Included in the price of the 50 gallon water heater I needed was the plumbers picking up the new water heater, transporting it to my home, navigating the steps down to the basement, and taking away the old water heater. All for the price on the receipt for the new water heater. What Mr. Simpson charges for is the installation of the new water heater and the peace of mind that comes with having a master plumber do a masterful job. Articulate, polite, and efficient, he made me aware of everything he was doing every step of the way. He is obviously a person who takes pride in his work. Mr. Simpson's work comes with a guarantee to amend any problem that arises. A guarantee I have not needed to avail myself of, but appreciate nonetheless. I am thoroughly satisfied with the job he did, and recommend him as an honest tradesman."
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Recommended by100%of homeowners
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