High Efficiency HVAC Solutions

Serving Suffolk and Nassau Counties, NY

Service contracts, emergency services, and financing available. 

Improve Your Home Comfort With Efficient HVAC

Energywise Inc has been providing excellent heating and air conditioning solutions to Suffolk and Nassau Counties, NY since 1985. Our certified technicians are committed to installing the most advanced and efficient HVAC systems available. We're proud of our many licenses and certifications, including our PSEG Long Island Home Comfort Partner designation. Our knowledge covers Bosch, Water-Furnace, Mitsubishi Electric, and many others. We focus on creating comfortable, energy-efficient spaces that meet your specific needs. If you're considering upgrading your current system or installing a new one, our team will guide you through the entire process. For help with home's comfort and efficiency, please contact us.

Why Choose Energywise Inc

Our commitment to sustainable quality means your heating & cooling system will perform at its best when you need it most.

The Energywise team ensures seamless installation and thorough maintenance to keep your system running efficiently year-round.



  • We're here when you need us most
  • We service all brands and fix small issues before they become big problems
  • Our team is fully trained and backed by over four decades of experience
  • Proud to be a PSEG Long Island Home Comfort Partner
  • A+ Rating with The Better Business Bureau
  • Fully Licensed & Insured in Suffolk & Nassau County
  • Clean History with Suffolk & Nassau County Consumer Affairs


Energywise Inc

Energy Efficient Systems

Energywise Inc focuses on energy-efficient systems that save you money and the environment. We offer high SEER-rated air conditioners, ENERGY STAR certified furnaces, and modern heat pumps. We'll help you find the right balance of efficiency and performance for your home.

HVAC Zoning

HVAC zoning lets you control temperatures in different parts of your home separately. This improves comfort and saves energy by heating or cooling only the areas you use. Our technicians can design and install a zoning system that fits your home and family's needs.

New Customers

Save $50 on

HVAC Service

First-time customers get $50 off any heating or air conditioning service from Energywise Inc. Experience top-quality HVAC care in Suffolk and Nassau Counties.

Call Energywise Inc!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
(631) 500-5300

5% Discount for Those Who've Served

Energywise Inc offers 5% off HVAC services. Save on heating and cooling solutions for your Long Island home.

Call for Service!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
(631) 500-5300

Here's what our satisfied customers are saying...

At Energywise Inc, we take pride in providing exceptional HVAC solutions to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Energywise Inc and let others know what you think.

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