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Residential Heating
Energywise heating services repairs and maintains most home heating systems.


Residential Cooling
We do repairs on all major AC units. We have experts ready to answer any questions or concerns you may have.


Geothermal Systems
Energywise also provides top-of-the-line geothermal servicing and repair.


On top of our residential solutions, we also provide a number of commercial services.

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 your heating and air conditioning repair situations?

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

Our dedicated technicians and personnel are highly skilled and equipped with the knowledge, experience and knowhow and can assist no matter how major the task may seem. We also have the correct equipment to work with any given situation.

We supply and specialize in the following services to aid you whether its commercial focused or residential:

Residential heating

We take care of your home heating so that you don’t have to. We repair, maintain and install your home heating systems.

Residential cooling systems

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

Geothermal systems

Geothermal systems are a cost effective way of generating central heating in the home or as a means to keep your house cooler during summer because of its source generated from the earth. Our skilled team are experiences and qualified to repair and install geothermal systems for residential and commercial heating Long Island.

Commercial systems

Whatever your needs may be regarding your cooling or heating systems in your industry, we can cater to it. With our excellent team we have more than 25 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. 

How can a lack of heating and air conditioning repair have a negative effect on our health?

If these systems we rely on to keep us cool and comfortable during summer and cozy warm during winter become damage or are in need of repair but are neglected, they may cause adverse health issues.

We take care to ensure that you receive only the best workmanship when it comes to service and maintenance. We also keep our prices market competitive so that you and your family can afford the maintenance that plays a crucial role in the well-being of your health.

We only make use of affordable materials and parts so that we ensure that you get value for your money in the long run. 

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

Energywise, Inc.


1 review

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