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Top-Rated Tankless water heater installers in Wading River - Updated Nov 2026

Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Tankless Water Heater - Install

Serving Wading River, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Kevin was great! The rest of the company not so much. Kevin diagnosed the problem immediately as the thermostat, had a replacement in the truck, and completed the installation of the new unit quickly. He showed me how to program the updated version, and everything seemed to be fine - until the next morning. Turned out the replacement was defective. When I called, I was told that they might not be able to get back to me that day, but Kevin interrupted his schedule to come back and put in a new (and working) unit at no charge."
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mayjac Plumbing, Inc.
Mayjac Plumbing, Inc.
4.6(
15
)
Tankless Water Heater - Install

Serving Wading River, 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 Wading River, 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 Wading River, 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 Wading River, 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 Wading River, NY and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"From the time I met Dennis for my estimate he was very helpful in answering all my questions regarding a tankless water heater and gave me a written estimate on the spot. I upgraded my original tankless water heater and both Dennis and is office staff kept me informed of the price difference in units. Dennis and his experienced grew of technicians did a wonderful job of removing my old hot water heater and installing my new one and any problems that came up they were able to handle. After job was completed they cleaned and vacuumed the area and demonstrated how my tankless water heater worked. I would recommend South Shore Plumbing & Heating to anyone who wants a excellent company that does the job right the first time."
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 Wading River, NY and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"Mr. Vitola  was a pleasure to do business with from the point we met to discuss estimates until the job was completed.  He gave me all the information I needed to make an informed decision and took time to answer all questions in a timely fashion.  His crew is knowledgeable, hard working, and professional.  I can honestly say that if you do business with APV, you will do so with confidence and peace of mind.  I would gladly do business with APV again and highly recommend.
"
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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 Wading River, NY and surrounding areas

In business since 1978

Emergency services offered

Credit card accepted

"Very honest. Very reliable. Did a great job. He was pleasure to work with. I plan on hiring him again for a new house. I also asked him to look at my water heater. He was the only one to say it didn't need to be replaced. It's still working 2 years later."
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Recommended by100%of homeowners
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