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24/7 Emergency Service

Reach out to the experts at Rebmann Plumbing, Heating & Air Conditioning if you have a plumbing or HVAC emergency on Long Island. We’re here to help 24/7. If your furnace goes out in the winter or your AC stops cooling in the middle of summer, we’ll repair it day or night. Call our team at 516-746-5678 for emergency services on Long Island, Roslyn, or Port Washington, NY. Residential and commercial repairs available.

High-Efficiency Water Heater Service on Long Island

Tankless water heater with homeowner adjusting the temperature setting easily

Homeowners looking to reduce energy expenses, improve performance, and extend the lifespan of their high-efficiency water heaters will need a top-quality technician to help them achieve their goals. At Rebmann Plumbing, Heating & Air Conditioning, our team works with high-efficiency water heaters, providing expert installation, replacement, repair, and maintenance to keep your system running smoothly.

Request high-efficiency water heater services in Great Neck or Glen Cove by contacting our team today.

What is a High-Efficiency Water Heater?

A high-efficiency water heater is designed to provide hot water while using less energy than standard models, helping homeowners save on utility bills. There are two main types: high-efficiency tank water heaters and tankless water heaters. High-efficiency tank models use improved insulation, advanced burners, and better heat exchangers to minimize heat loss and maximize efficiency.

Tankless water heaters, also known as on-demand water heaters, heat water only when needed, eliminating standby energy loss and providing a continuous hot water supply. Both options offer significant energy savings and improved performance compared to traditional water heaters.

High-Efficiency Water Heater Installation

Our team offers professional high-efficiency water heater installation and replacement solutions to families throughout Long Island, helping them enjoy reliable hot water while saving on energy costs. Whether you choose a high-efficiency tank or tankless water heater, our team ensures a seamless installation process, including proper sizing, venting, and connection to your home’s plumbing system.

Benefits of upgrading include:

  • Lower utility bills
  • Faster hot water delivery
  • Reduced standby energy loss
  • Smaller environmental footprint

Not only that, but high-efficiency water heaters can last 10 to 20 years, depending on the type and maintenance, providing long-term savings and performance.

24/7 High-Efficiency Water Heater Repairs

Like all home appliances, high-efficiency water heaters will inevitably require repair to remain in proper working order. It’s important to get repair needs addressed promptly to prevent small issues from escalating into premature replacement needs. The following are some of the telltale signs that it’s time to book professional high-efficiency water heater repair:

  • Inconsistent water temperature: If your water fluctuates between hot and cold or never reaches the desired temperature, your water heater may have a failing heating element or a malfunctioning thermostat.
  • Reduced hot water supply: Running out of hot water faster than usual can indicate sediment buildup, a faulty burner, or an issue with the heat exchanger in tankless models.
  • Strange noises: Rumbling, popping, or hissing sounds from your water heater could be caused by mineral buildup, which reduces efficiency and strains the system.
  • Leaks or water pooling: Any visible leaks around the unit may indicate a failing valve, corroded tank, or loose connections that need immediate attention.
  • Higher energy bills: A sudden increase in your energy costs without a clear reason could mean your water heater is working harder than necessary due to an efficiency issue.

If you’re experiencing any of these problems, our team offers 24/7 emergency high-efficiency water heater repair solutions to help you quickly regain total functionality.

Why Choose Our Team?

Since 1938, Rebmann Plumbing, Heating & Air has offered comprehensive water heater solutions that Long Island residents trust to keep their systems working properly. With same-day emergency service availability, flexible financing options, and continuous training for our team, we are confident in our ability to deliver unmatched convenience, cost-effectiveness, and quality in every appointment.

Book high-efficiency water heater services in North Hempstead or Port Washington today!

At Rebmann, we install and service all water heater makes and models, including the great systems from:

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I was very happy I chose to work with Rebmann. They were very professional and courteous. Finished the install in record time and back up their work as well.

Jeff F.

Jeff F.

Very happy with the service provided. The team knows what they are doing, they are professional, efficient, punctual, nice. They follow up to make sure everything is OK. I would definitely recommend.

Hubert A.

Hubert A.

First time customer and couldn’t be more happy with the service I received. Professional, caring and knowledgeable!! Will definitely call again.

Regina V.

Regina V.

Rebmann installed a new gas furnace. I couldn't have been more satisfied with the experience in every respect. Professional, competent, punctual and polite. I recommend highly. My technician and the rest of the crew were outstanding.

Eileen M.

Eileen M.

Rebmann is an excellent service provider. We've been using them for 20 years! They are always very responsive and their technicians are professional, courteous, friendly and knowledgeable.

Dennis P.

Dennis P.