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Top-Rated Water heater repair or service pros in Sag Harbor - Updated Nov 2026

Avatar for Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)
Water Heater - Repair or Service

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"The company communicated clearly throughout the day about when they would arrive. The service man, Mike, was very nice and even made my dog fall in love with him! He did everything that he could to help fix our problem as it was not an easy fix. This whole experience has been a good one! Thank you Home Advisor, Surefire and Mike!"
4 Zone Navien Boiler
1st Floor AC System
Hi Efficient Heat and Hot Water
Snow melt sensor
Manifold

+14

Response time10 mins
Recommended by97%of homeowners
Avatar for Mayjac Plumbing, Inc.
Mayjac Plumbing, Inc.
4.6(
15
)
Water Heater - Repair or Service

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2015

Small jobs welcome

Offers commercial services

"Very professional, knowledgeable and easy to work with. Flexible in terms of scheduling and knows the hardware/fixtures really well. Would definitely hire again."
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
)
Water Heater - Repair or Service

Serving Sag Harbor, 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. \n \nWe 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 Handy Hubby
Handy Hubby
3.3(
43
)
Water Heater - Repair or Service

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Handy Hubby Steve repaired cement stairs and installed a new outside back door. He did an awesome job. Steve was always on time and made sure everything was done properly. His prices were very reasonable. Great personality. Very personable. I will definitely use him in the future for any other repairs I need done."
Stand Alone  Structure
Painted wood porch
Large deck and covered area
Large deck and covered area
Before - Pad removed

+5

Recommended by78%of homeowners
HomeServe of Long Island
2.5(
1
)
Water Heater - Repair or Service

Serving Sag Harbor, NY and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

HomeServe Energy Services (HES) provides reliable heating and cooling experts that service over 1,000 communities in 26 counties across New York, Massachusetts and Rhode Island, from five “depot” sites supporting metro New York, southern New Jersey, Rhode Island and eastern Massachusetts. With almost 200 technicians (including certified refrigerant handling technicians and NATE-certified technicians), HomeServe provides emergency heating, cooling and water heater repairs as well as tune-ups and new equipment installations. \n

Tri Seasonal Plumbing, Inc.
New to Angi
Water Heater - Repair or Service

Serving Sag Harbor, 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 APV Mechanical Inc
APV Mechanical Inc
4.8(
89
)
Water Heater - Repair or Service

Serving Sag Harbor, 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
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FAQs for water heater repair or service projects in Sag Harbor, NY

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Sag Harbor, NY homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.