Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros in Uniondale, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

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

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

Serving Uniondale, 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
Avatar for Premier HVAC Services
Premier HVAC Services
4.3(
229
)
Tankless Water Heater - Repair

Serving Uniondale, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I had a great experience with Premier HVAC replacing my old and leaking water heater. I was impressed that they were able to respond quickly and start working on the same day as my call, especially given the severely cold weather and other plumbers being busy replacing freezing pipes. The plumber was able to work with my very tight kitchen space and narrow hallways, and without having to remove the countertop in my kitchen. I am satisfied with the installation and would definitely consider Premier HVAC for future plumbing needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+38

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for CARPENS PIPING & HEATING
CARPENS PIPING & HEATING
5.0(
12
)
Tankless Water Heater - Repair

Serving Uniondale, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Offers commercial services

"If I could describe this company in 2 words it would be life saving. Iâ ve been dealing with clogged pipes for so long. Many other companies have quoted me too much. Tarique got to the bottom of the problem and gave me a reasonable price. Very efficient, very professional and over all great service! Contact this company for all your plumbing and heating needs! I have already contracted them to fix my heating problem!!"
Response time9 hrs
Response rate98%
14 neighbors recently requested a quote
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Tankless Water Heater - Repair

Serving Uniondale, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Tom was terrific....repaired boiler....cost reasonable.....explained everything so clearly so that even this 88year old understood it....experience with company from start to finish was a pleasure"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Jones Heating and Cooling
Jones Heating and Cooling
5.0(
16
)
Tankless Water Heater - Repair

Serving Uniondale, NY and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"Jack was a lifesaver! He was the only HVAC professional we could find to repair our central AC same day. He explained everything, checked our entire cooling system, repaired it quickly and gave us tips and suggestions for moving forward and maintaining it. Also just a super nice guy. Thank you again Jack!"
Outdoor Unit
Outdoor Unit
Indoor Air Handler
Cariello Mini Split
Shasaty Mini Split

+9

Avatar for Benitez Remodeling
Benitez Remodeling
4.7(
13
)
Tankless Water Heater - Repair

Serving Uniondale, 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
...
Showing 1-10 of 178