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

Avatar for Aldos plumbing
Aldos plumbing
5.0(
35
)
Tankless Water Heater - Repair

Serving Ardsley, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Aldo was great. Communicated about when he expected to be there. Was polite and prepared with mask etc to enter the house. Found that he was able to simply repair my valve rather than go through the expensive process of replacing. Impressed with his professionalism and honesty. Would definitely recommend him."
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+41

1 neighbors recently requested a quote
Recommended by44%of homeowners
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
31
)
Tankless Water Heater - Repair

Serving Ardsley, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"Anji recommended four plumbers. Cassidy was the first to respond on Friday afternoon. One other plumber responded but I could not understand his heavy accent, and he asked me if I wanted him to replace the whole burner assembly. That made no sense to me and I questioned him about it. Suddenly he became "too busy" and hung up the phone. Another plumber didn't respond until Monday morning. Too late. The fourth plumber never responded at all. Cassidy asked if it was an emergency or could wait until Monday. I said Monday. and asked what time? I did not get an answer on Friday. Around 8:30P I called and got an answering service which told me that I wouldn't get a response until Monday because their office closed at 8:00P. I had asked about what time on Monday before 6:00P George arrived Monday morning. He was friendly. He knew what he was doing. He replaced the thermocouple. All work was done neatly and professionally. We have hot water again. I'd use Cassidy again."
Heating System
Heating System
Plumbing
The Team
Navien Water Heater

+3

Response time2 days
Response rate100%
8 neighbors recently requested a quote
Charles Mechanical
5.0(
37
)
Tankless Water Heater - Repair

Serving Ardsley, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Credit card accepted

Offers commercial services

"Wanted to clarify I hired them to replace a water heater for my home, not business. Very professional, efficient and thorough. Took the time to explain everything done and made recommendations. Definitely would hire them again."
Response time10 hrs
Response rate93%
9 neighbors recently requested a quote
Affordable Heating & Cooling of NY Inc.
4.3(
53
)
Tankless Water Heater - Repair

Serving Ardsley, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Affordable Heating and Cooling did an amazing job installing my new split system on New Years Eve!! Dave the owner, was in constant communication with me from start to finish and was meticulous with all aspects of the project. They were very neat and cleaned everything back to the way it looked before the project began. A pleasure to work with and he even gave me a bunch of free advise about other aspects of my nearly 100 year old heating system. They will be my first call if I have any other heating or cooling needs!"
Response time4 hrs
Response rate86%
10 neighbors recently requested a quote
Avatar for Aqua Tech Plumbing
Aqua Tech Plumbing
4.7(
3
)
Tankless Water Heater - Repair

Serving Ardsley, NY and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"I put in the request in the evening and didn’t expect such a quick response. Klaudio was able to come out and inspect the issue and get it completed right away. He was knowledgeable about what needed to be done. Also offered advice about future repairs."
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+2

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for LP Construction
LP Construction
4.2(
11
)
Tankless Water Heater - Repair

Serving Ardsley, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

LP Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

House Renovation
Commercial store
Bathroom, roofing plumbing
Bathroom, roughing plumbing
Kitchen

+2

5 neighbors recently requested a quote
Recommended by60%of homeowners
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