AIR CONDITIONING & HEATING SERVICES ON LONG ISLAND
The best HVAC service on Long Island since 1983 
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Residential & Commercial HVAC Professionals

Serving Long Island, NY Since 1983

GallettAir Inc. has proudly provided trusted residential HVAC and commercial HVAC services on Long Island, NY, and the surrounding communities of Suffolk County and Nassau County since 1983. Whether you need heating or air conditioning service, our experienced technicians deliver dependable solutions tailored to your home or business. We also specialize in heat pump systems, ductless heating systems, natural gas heating, traditional water heaters, tankless water heaters, and air duct cleaning to help keep your property comfortable and energy efficient year-round.


To help protect your investment, we offer heating service, air conditioning service, and natural gas service contracts, along with responsive AC and heating service for seniors, new homeowners, and families. Our team is committed to providing quality workmanship and exceptional customer care. Contact us today to schedule your next HVAC service appointment or request a project estimate!

Family Owned & Operated in Long Island, NY
Family owned and operated, GallettAir Inc. is proud to call Long Island our home, so help us keep it going strong! At GallettAir Inc., we  provide services to commercial and residential clients throughout Long Island. With personalized attention that you won’t find anywhere else, we can guarantee the highest quality heating and air conditioning service on Long Island. We put our heart and soul into every job, which allows us to develop new friendships and community bonds that will last for generations to come.
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Gallett Air service agreement
Affordable Parts and Labor Service Agreements
If you’re searching for an honest and dependable air conditioning and heating service and installation company, a company that will save you money and be there for you when you call, then it’s time to call GallettAir Inc. We offer affordable comprehensive parts and labor service agreements for homes and businesses. With a GallettAir service agreement, you will NEVER pay for another service call again! Enjoy peace of mind with true 24/7 priority response and preventive maintenance. Weekend and holiday service are included.
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air duct cleaning and sanitizing by Gallett Air
Air Duct Cleaning & Sanitizing
Here at GallettAir Inc. we operate our own in-house Air Duct Cleaning and Sanitizing division. We’ve invested and use only the most advanced state of the art equipment available that guarantees your air duct system will be as clean as possible when we are finished. We also offer dryer vent cleaning. Group rates are available so talk to your neighbors and friends and get a money saving discount! All work fully guaranteed. Call today to set up an appointment.
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Request a Free* Consultation or Estimate Today
*Certain restrictions may apply.
Call: 631-587-8395
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631-587-8395
As an accredited member of the BBB and Best of the Best National Award winner 2021, we take the quality of our services very seriously. 
We take pride in being a top-rated business and exceeding your service and installation needs.

Better Business Bureau Accredited Business
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best of the best 2021
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nominated best of 2022
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Keep Your Heating & Air Conditioning System Running Smoothly for Generations to Come!
Family owned and operated, GallettAir Inc. is proud to call Long Island our home, so help us keep it going strong! At GallettAir Inc., we love providing outstanding services to our local community. With personalized attention that you won’t find anywhere else, we can guarantee the highest quality HVAC service on Long Island. We put our heart and soul into every job, which allows us to develop new friendships and community bonds that will last for generations to come.
CONTACT US
Gallett Air staff
Affordable Parts and Labor Service Agreements
If you’re searching for an honest and dependable air conditioning and heating service and installation company, a company that will save you money and be there for you when you call, then it’s time to call GallettAir Inc. We offer affordable comprehensive parts and labor service agreements for homes and businesses. With a GallettAir service agreement, you will NEVER pay for another service call again! Enjoy peace of mind with true 24/7 priority response and preventive maintenance. Weekend and holiday service are included.
REQUEST AN ESTIMATE
air duct cleaning and sanitizing by Gallett Air
Duct Cleaning
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Give us a call to schedule a free estimate!
Certain restrictions may apply.