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Top-Rated Water heater installers and replacers in Potsdam - Updated Nov 2026

Astar Heating & Air Conditioning Inc
4.8(
138
)
Water Heater - Install or Replace

Serving Potsdam, NY and surrounding areas

In business since 1976

Free estimates

Emergency services offered

"After an extensive process of having different contractors evaluate my home & submit their estimates for the installation of a Bosch tankless boiler/water heater combination unit as well as new baseboard heating, I selected AStar Heating & Cooling. Their staff impressed me from start to finish. Initially, I met Aaron who provided a thorough explanation of how the work would be done, offered other options that I did not know of or considered at the time, and provided a fair estimate that was similar to most of the other contractors. Next, when the time came for the projects to be completed, the technicians, Robert & Trevor, were on point. They always arrived in a timely manner & started working right away. They worked efficiently & quickly to get the projects done in the time frame promised. However, they did not rush, they took pride in their work & made every effort to make sure the work was completed neatly & done properly, as they thoroughly tested out the systems to make sure their were no issues/problems in their setup & performance. They also thoroughly answered my questions about the installation of the new systems as they went about their work. At the end of each workday, they made sure to clean up the job site & were very mindful in not dirtying my new floors by wearing plastic booties whenever they had to walk over them. The Bosch tankless water heater/boiler combination unit has been working without a hitch. I barely notice the difference in the time lag of receiving hot water in comparison to the old 40 gallon tank water heater I previously used. Overall, I highly recommend AStar Heating & Cooling. High quality work done high quality professionals. All of them put my mind at ease on what was a very necessary home improvement project."
Red Carpet Treatment
Furnace
AC
Recommended by98%of homeowners
Avatar for J&J Plumbing and Home Repair
J&J Plumbing and Home Repair
4.0(
54
)
Water Heater - Install or Replace

Serving Potsdam, NY and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"They were very professional and not only replaced the bad hot water tank, but corrected mistakes the people who originally installed the tank had made. i will definitely use them in the future."
Kitchen sink
Kitchen sink
Water meter
Water meter
Water meter

+57

Response time1 day
Recommended by78%of homeowners
Diana Builders, LLC
5.0(
4
)
Water Heater - Install or Replace

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 Scott Property Services
Scott Property Services
5.0(
10
)
Water Heater - Install or Replace

Serving Potsdam, NY and surrounding areas

In business since 2018

Free estimates

Warranties offered

"Amazing work, amazing customer service. The best by far for all home projects! Love them and have already rehired them for other projects and will continue to use them in the future. I cannot say enough about the quality of their work. They care and do a great job at a fair price!!! Simply amazing. They are perfectionists and will the job right, great communicators ...everything they've done from painting rioms, patching ceilings, hanging fixtures to installing sinks.has been stress free for me and they've done an exceptional job."
Living Room
Living Room
Interior Paint
Interior Paint
Interior Paint

+55

Response time9 hrs
Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Water Heater - Install or Replace

Serving Potsdam, NY and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Avatar for Anderson Water Systems Inc
Anderson Water Systems Inc
3.1(
30
)
Water Heater - Install or Replace

Serving Potsdam, NY and surrounding areas

In business since 1994

Free estimates

Emergency services offered

"Service went very professionally. Price was competitive, crew arrived as agreed on, very helpful installers. Completely cleaned up all areas and explained the system and checks clearly and fully. Very happy with the service.
"
Recommended by61%of homeowners
R.A. Plumbing
4.8(
4
)
Water Heater - Install or Replace

Serving Potsdam, NY and surrounding areas

In business since 2018

Free estimates

R.A. Plumbing takes great pride in our experience, expertise, quality, and customer service. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to 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.

Response time4 hrs
Recommended by100%of homeowners
Avatar for Handy Randy's Repair Service
Handy Randy's Repair Service
5.0(
4
)
Water Heater - Install or Replace

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
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