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Astar Heating & Air Conditioning Inc
4.8(
138
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Johnsburg, 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 Grasshopper Heating & Cooling
Grasshopper Heating & Cooling
4.5(
126
)
Water Heater - Install or Replace

Serving Johnsburg, NY and surrounding areas

In business since 2005

Free estimates

"My Technician was prompt, courteous and very helpful in explaining what was happening with my system. I will use them for all my heating needs."
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+73

Response time1 day
24 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Kenyon's AP
Kenyon's AP
4.3(
12
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Johnsburg, NY and surrounding areas

In business since 2022

Free estimates

Warranties offered

With years of professional HVAC experience, we are locally owned and operated. Kenyon's AP is here to fill all of your HVAC needs at competitive rates!\nWe are dedicated to get the job done right and specializing in Heating and Air Conditioning services; Contact us today we guarantee your satisfaction and look forward to serving you all while delivering great customer service! Call or click for your FREE estimate!\n*DISCOUNTS OFFERED FOR VETERANS AND SENIORS!

New furnace
Wall furnace
Wall furnace
Wall furnace
Wall furnace

+9

Response time2 days
Response rate100%
Recommended by63%of homeowners
R.A. Plumbing
4.8(
4
)
Water Heater - Install or Replace

Serving Johnsburg, 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 American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Johnsburg, NY and surrounding areas

In business since 1971

Credit card accepted

"Service guy came as scheduled. Sent his "service" requirements to home base Home base calls back and lists, a very long list of what needs to be done and a very long list of what is not covered and what each item costs. The overall cost was outrageous and they weren't willing to give it to me in writing. Everything I had to pay for was overpriced, of course! They told me my other option would be to purchase my own water heater and they would reimburse me for what there water heater would cost, but no reimbursement for Labor, building permit, or any upgrades required by the local building department. The requirements of the building department were minimal. I went to Home Depot and had them do the installation and saved many hundreds of dollars. Lesson learned, have AHS do simpler repairs that don't require municipal building department approval. Have AHS pay for the equipment, and purchase installation from a trusted local installer."
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+2

Recommended by65%of homeowners
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Water Heaters questions, answered by experts

When replacing an old unit, you might want to switch from a gas water heater to an electric water heater or vice versa. To do this, you will likely need to add infrastructure to the area. For example, you likely don’t have a gas line that served your old electric water heater. You’d have to call a plumber to put in a new gas line. If you’re replacing a gas unit with an electric one, the plumber will need to safely cap the old gas line. You will then need an electrician to add wiring for the new electric unit.

Electric water heaters typically last 10 to 20 years, though proper maintenance can extend their lifespan. If your unit is over a decade old and showing signs of inefficiency—such as higher energy bills, frequent repairs, or leaks—replacement is a smart investment. Tankless models last over 20 years, which can make them a longer-lasting alternative to traditional tank water heaters.

The time it takes to install or replace a water heater depends on the type of heater and the complexity of the job. A professional can typically replace a standard tank-style water heater in one to three hours. However, if the work area is tight, such as a small closet or crawl space, the job could take four to five hours. Replacing an existing tankless unit takes about two to three hours, while upgrading from a tank-style to a tankless water heater is more complex and can take four to six hours. The project will take longer if you are switching fuel sources, such as installing a gas heater which can add about an hour to the timeline, or if the unit needs to be relocated.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

The average cost to install a new water heater is approximately $1,300, with a typical price range between $880 and $1,800. The final cost depends on several factors, including the type and size of the unit, its location and accessibility, and the amount of labor required. For example, installing a unit in a tight space like a crawl space can increase labor costs. The type of water heater significantly impacts the price: while a conventional gas heater might cost less than $1,000, tankless models can cost around $2,600 to install (and up to $3,500), and solar heaters can cost upwards of $3,700. Other factors that can affect the total price include the fuel type, vent system requirements, permits, and whether any additional plumbing work or repairs from previous water heater damage are needed.

The Johnsburg, NY homeowners’ guide to water heater services

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