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

Avatar for 5DS Plumbing and Heating
5DS Plumbing and Heating
4.6(
70
)
Tankless Water Heater - Install

Serving Mineola, NY and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Replaced hot water tank with tankless gas fired system. Easy to work with, answered all questions and did a good job in 1 day. Hot water back in a few hours of their arrival. Thanks to Paul and Syed."
Response time2 hrs
Response rate94%
2 neighbors recently requested a quote
Barnagat Plumbing Inc
4.7(
212
)
Tankless Water Heater - Install

Serving Mineola, NY and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Barbara graciously took a look at the leak when she came by to give us an estimate for a whole house water filter install. We called her back a week later to fix the leak. Barbara showed up on time and was up front about how she planned to fix the problem, any additional costs should the planned approach didn't work, and other alternatives. She was able to fix the leak in 30 mins and we no longer have to worry about water behind the walls."
Response time1 day
Response rate100%
Recommended by95%of homeowners
Avatar for Premier HVAC Services
Premier HVAC Services
4.3(
229
)
Tankless Water Heater - Install

Serving Mineola, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I had an issue with my stream boiler last Saturday. Did a google search and called multiple companies except Lighthouse (also part of Premier HVAC) picked up the phone right away and the tech Slava (unsure if I spelled his name correctly) showed up an hour after my call. He was very knowledgeable. He first did a thorough inspection on my streamer boiler (I thought mine was called furnace but he corrected me and luckily Lighthouse also repair stream boiler), then giving options (replace the water feeder and side glass or the whole stream boiler since mine was already past 30years and it may not last long). Due to budget issue, after discussed with my family, we chose for now just changed the parts. Slava has no problem with that and I got lucky that he was about to arrange time to have the work done the same day. Slava is also very patient and professional. As he learned that I am new to streamer boiler, while he was doing his work, at the same time, he was giving “a lecture “ in terms of names, functions of each parts and the concept of how the stream boiler works and how to maintain it properly. I gotta be honest that I don’t recall all the he mentioned but at least now I have a concept. In terms of the price, I can’t say that it’s cheap but you pay for the quality of service that you get. Slava literally taking his time and spent about 4 hours to repair. Highly recommend."
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+38

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Tankless Water Heater - Install

Serving Mineola, 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 CARPENS PIPING & HEATING
CARPENS PIPING & HEATING
5.0(
12
)
Tankless Water Heater - Install

Serving Mineola, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Offers commercial services

"This company was amazing. Everyone was friendly and very professional. I had to install a new heating system in my house and this company did a great job very neat and clean work. Everything was explained to me in details whenever I had a question. I recommend this company and will be hiring them in the future."
Response time9 hrs
Response rate98%
14 neighbors recently requested a quote
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