Water Heating Services

Serving Suffolk and Nassau Counties, NY

Service contracts, emergency services, and financing available. 

Dependable Water Heating Solutions for Your Home

Since 1985, Energywise Inc has been the go-to name for water heating services across Suffolk and Nassau Counties, NY. As your neighbors, we're committed to keeping your home comfortable and energy-efficient. Our skilled technicians are ready to handle any water heating challenge, from installations to repairs, ensuring you always have hot water when you need it. At Energywise Inc, we stand behind our work with a 90-day service guarantee, giving you confidence in our services. As a PSEG Long Island Home Comfort Partner, we offer energy-efficient solutions that keep your water hot while helping to lower your utility bills. For new water heater installations or quick repairs, our certified technicians are here to help. Reach out to us today and see why so many homeowners trust Energywise Inc.

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

Tankless Water Heater Installation

Interested in an energy-efficient water heating option? Consider our tankless water heater installation service. We offer reliable brands like Rinnai and Navien. Our team will help you select the right model for your home and install it correctly, ensuring constant hot water and reduced energy costs.

Water Heater Repair

When your water heater malfunctions, Energywise Inc is here to help. Our certified technicians are available 24/7 for emergency repairs. We service all brands and models, addressing small problems before they become major issues. Trust us to get your water heater working properly again.

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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