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Residential Heating
Energywise performs heating services for all types of home heating systems


Residential Cooling
Our expert technicians will repair your central air conditioning system and are ready to answer any questions or concerns you may have


Geothermal Energy
Pioneers of Geothermal technology on Long Island, we specialize in the design, installation and servicing of these systems


Commercial Heating & Cooling
We have many solutions so that you can run your business in a comfortable environment

Why Energywise

Serving Nassau & Suffolk Counties more than 33 years

For the past 33 years, Energywise has provided clients with professional, courteous and dependable service to bring total indoor comfort to their homes and businesses.

  • Available 24/7/365
  • Free Estimates
  • Repairs On All Brands
  • Same Day Service Available
  • 90-Day Service Guarantee
  • Service Contracts Available
  • Loyal & Reliable

Work with us because…

Available 24/7/365
We are there when you need us the most.
  • Just a phone call away
  • Friendly customer service
  • Weekends & Holidays
Service In Hours
We are there when you need us the most.
  • Same Day Service
  • 90-Day Guarantee
  • Repairs on ALL Makes and Models
90-Day Guarantee

The satisfaction of our customers is our No. 1 priority. If anything goes wrong within 90 days of our visit, you will not be charged again for the service call! Call our office for more details.

Heating and Air Conditioning Repair Long Island

Energywise is one of Nassau and Suffolk County’s number one selected heating and air conditioning repair Long Island companies with 33+ years experience in the industry. We are dedicated to excellent customer service and quality that you can trust. Contact us for a quote and let us help you!

How can we help reduce the need for heating and air conditioning repair?

During the bitter cold winter months and the sweltering hot summer months, we greatly rely on our comfort systems to run properly. If they are neglected, they eventually break down, and they may even cause serious adverse health issues.

At Energywise we know how crucial it is to maintain your heating and air conditioning systems, whether at your home or office.

We specialize in installing, servicing and maintaining the following systems for all of your residential or commercial needs:

Residential Heating Systems

We ensure that your heating system operates efficiently, providing you with lower energy costs and peace of mind. 

Residential Cooling Systems

Air conditioning is a great way to keep your home cool on those unbearable hot days. At Energywise, we specialize in servicing all major central air conditioning units, and replace, repair and maintain them for your household. 

heating installation pad

We can take care of any system!

Geothermal systems

Geothermal Energy is a cost effective way of generating central heating during the winter months or as a means to cool your home in the summertime, utilizing resources generated from the earth. Our skilled team of experts are qualified to install and repair geothermal systems for our residential and commercial Long Island customers.

Commercial Heating and Air Conditioning systems

Whatever your needs may be regarding your cooling or heating systems for your business, we can cater to it. With our excellent team we have more than 30 years of experience and can manage large and small jobs no matter how easy or difficult they may seem.

Heating and air conditioning repair Long Island is available in many ways and at various costs, but with Energywise we endeavor to always provide our clients with only the best in quality at affordable prices to suit their pocket. 

We will take care of all your heating and air conditioning repair Long Island needs for your home or business. Feel free to contact us for more about or comprehensive services and information, we’re waiting to hear from you!

What Our Clients Think...

The service tech (Jahn) was knowlegable, very polite, efficient and just a nice guy. The office staff (Debbie and Kim) were professional and helpful. There is a service call charge which is explained up front. Well worth paying for in my opinion. Service arrived in less than 45 minutes then immediately identified the problem as a bad Ignition Control Module . Jahn suggested In I purchase their service contract to avoid the service charge on the next call.
Great River Homeowner
Good job contract with the company. Mike was professional fixed all the problems. Did extra work. Above and beyond
Lori S Bayshore
We had an excellent experience with Energywise, Inc. I would recommend them to friends and family. The service man was very knowledgeable and their price was better than all the other companies that I had called for estimates.
Grace Patchogue
Was very impressed with knowledge of both servicemen. Felt very comfortable that the information they were providing was accurate. Would definitely recommend them and will use them in the future.
Francine Commack
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