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

Astar Heating & Air Conditioning Inc
4.8(
138
)
Water Heater - Repair or Service

Serving Potsdam, NY and surrounding areas

In business since 1976

Free estimates

Emergency services offered

"30 Years ago when the heat went out at work on Christmas eve at 2am, Astar responded immediately !! Now today as a homeowner, when my furnace stopped working , I called AStar first!! ( not because the name starts with an A). Kyle the Service tech, could not get to my home because the roads were closed for a local event. He had to park his truck a mile away and carry his tools and parts. Instead of postponing the appointment, my heat was repaired quickly ! I am glad to see there level of service continues to exceed expectations ! Ed , Kyle deserves a Raise !!"
Red Carpet Treatment
Furnace
AC
Recommended by98%of homeowners
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,680
)
Water Heater - Repair or Service

Serving Potsdam, NY and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"The Choice warranty Co is a lifesaver, great fast and reliable service, we had a water heater and a washing machine malfunction in a two month interval and we were approved for repairs in both instances within 36 hours and scheduled for repairs within one day later"
Recommended by81%of homeowners
Diana Builders, LLC
5.0(
4
)
Water Heater - Repair or Service

Serving Potsdam, NY and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"I required a new water heater installed and Diana builders were able to give me the exact water heater I wanted at the most competitive price. Dave took the time to explain what he thought the best solution was in plain English, gave me a quote a few hours later after researching his exact costs and stuck to his quote."
Response time1 day
Response rate92%
Recommended by100%of homeowners
Avatar for Handy Randy's Repair Service
Handy Randy's Repair Service
5.0(
4
)
Water Heater - Repair or Service

Serving Potsdam, NY and surrounding areas

In business since 2019

Free estimates

Handy Randy's Repair Service is committed to excellence 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

Recommended by100%of homeowners
Avatar for Northern Plumbing Services
Northern Plumbing Services
5.0(
2
)
Water Heater - Repair or Service

Serving Potsdam, NY and surrounding areas

In business since 2005

Free estimates

"I received a call back the same night of my inquiry. Came to my home the next day to take out the old water heater and install the new one. All done in two hours. Even hauled off the old one for me. Price was very reasonable. Great job!! A++ service. Highly recommended by me."
Response time4 days
Recommended by100%of homeowners
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FAQs for water heater repair or service projects in Potsdam, 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 Potsdam, NY homeowners’ guide to water heater repair or services

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