Your #1 Choice
for Heating and AC repair in East Hampton and Southampton

Grant Heating & Cooling is a 2022 NextDoor Neighborhood Favorite for AC repair in East Hampton NY.

We’re Tried and True
When it Comes to Heating and AC Repair in East Hampton

There are a lot of companies that do what we do—repair, maintain, and install HVAC equipment. But, there are few with as many loyal customers! We’re glad to be the air conditioner company people in East Hampton, Southampton and Sag Harbor know and trust. All installations and repairs we do come backed by a comprehensive satisfaction guarantee. So, when you're looking for ac repair in East Hampton and the surrounding communities, you can count on us. Call (631) 324-0679 today to get scheduled and get one step closer to fixing your HVAC problem.

Our philosophy is simple: we treat our customers the way we'd like to be treated. Before starting work, we educate you as to your options and potential costs of your ac repair or air conditioning replacement. We show our respect by showing up on time, being prepared, doing quality work, and treating your home as if it was our own. When we’re done, you pay what was agreed upon up front and can count on us stand behind our work. When you couple that with our dedication to our customers, why would anyone in the East Hampton area go anywhere else?

Ductless Mini-Split HVAC

Installing a ductless mini-split system in your home in East Hampton can be a great decision for you and your wallet! Click here to learn more about how this energy-efficient HVAC option can keep you comfortable and save you money.
Save money on geothermal AC service in East Hampton NY.


Geothermal heating is a cost-effective and energy efficient HVAC option in the East Hampton area. Learn more about how converting can benefit you and your family.

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Energy Efficiency

Get an energy-efficiency test done to see where things are running efficiently in your home and where things can improve. We'll then work with you to develop a battle plan.

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Save money on an energy efficient Air Conditioning service in Southampton NY.
We stand behind our Heat Pump company's work in Sag Harbor NY.


We include a warranty with all of our services, so you never have to worry about us leaving you high & dry. If there's a problem with the new ac we installed, call!

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Air Duct Sealing

A little hole in your home's ductwork can cost you big. Fortunately, our HVAC experts can quickly find & patch the leaks. This means more money in your wallet.

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Schedule your air duct sealing in East Hampton NY today through Grant Heating & Cooling.

Why Choose Grant Heating & Cooling


Whether you need a maintenance check or an emergency AC or heating repair, we are available to handle your HVAC problems. We strive to exceed your expectations by ensuring that each of our clients receives individualized service.


We will work with you to find HVAC solutions that fit your home and its specific needs. We will provide you with a full consultation to explain all of your available options so that you can choose the system that’s right for your home or business.

Customer Satisfaction Guaranteed

We serve both residential and commercial clients and offer a variety of money-saving solutions. We combine our use of the highest quality parts and equipment with a dedication to delivering exceptional service to provide you with top quality service. All service comes with a warranty.

Cities We Service

  • Amagansett
  • Bridgehampton
  • East Hampton
  • Sagaponack
  • Montauk
  • North Sea
  • Noyack
  • Sag Harbor
  • Shelter Island
  • Shelter Island Heights
  • Southampton
  • Springs
  • Wainscott
  • Water Mill
Cities We Service
Grant Heating & Cooling is a heating and AC company based out of East Hampton. Grant Heating & Cooling employs only the best HVAC technicians for your furnace, heat pump, and air conditioner repairs and replacements. We proudly service Amagansett, Bridgehampton, East Hampton, Montauk, North Sea, Noyack, Sagaponack, Sag Harbor, Shelter Island, Shelter Island Heights, Southampton, Springs, Wainscott, Water Mill, and the surrounding areas. So, when you ask to find "A good air conditioner company near me", you've come to the right place. To get a quote on your next ac repair or replacement, call (631) 324-0679. Grant Heating & Cooling services all brands of HVAC equipment including AO Smith, Rinnai, Bradford White, Daikin, Fujitsu, Mitsubishi, Lochinvar, Crown, Weil McLain, Waterfurnace, Aprilaire, Honeywell, Dynamic, General, Skuttle, Carrier, Coleman, Bryant, Payne, Frigidaire, York, Trane, Lennox, Rheem, Maytag, Goodman, Ruud, Amana, Armstrong, American Standard, Nest, and Ecobee.