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43 Years
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Emergency
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Trusted HVAC Services on Long Island Since 1983
GallettAir has been providing professional HVAC services on Long Island since 1983. As a family-owned and operated business based in West Babylon, NY, we serve residential and commercial clients across Nassau County, Suffolk County, and Queens. Our team of NATE-certified technicians offers 24/7 emergency service, preventive maintenance, and comprehensive repairs for heating, air conditioning, and water heater systems. We maintain an A+ rating with the Better Business Bureau and hold certifications from BPI and NYSERDA, ensuring adherence to industry-leading standards. With over four decades of experience, we prioritize personalized service, community engagement, and long-term customer relationships.

Our service agreements eliminate future service call fees and include priority response for emergencies. We operate state-of-the-art equipment for air duct cleaning and specialize in energy-efficient solutions, including tankless water heaters and natural gas systems. Our commitment to quality is reflected in our 10-year warranties and recognition as a Best of the Best National Award winner. We pride ourselves on transparency, reliability, and delivering value through competitive pricing and expert craftsmanship.
Services
Heating Service Air Conditioning Repair Duct Cleaning Water Heater Installation Natural Gas Heating Tankless Water Heaters Commercial HVAC Residential HVAC Heat Pump Service Emergency HVAC Services
Details
  • Year established: 1983
Highlights and features
  • 40+ years of HVAC expertise on Long Island
  • Better Business Bureau A+ accredited business
  • 24/7 emergency service with priority response
  • NATE-certified technicians for specialized expertise
  • Service agreements include no future service call fees
Associations and certifications
  • Better Business Bureau
  • NATE (North American Technician Excellence)
  • BPI (Building Performance Institute)
  • NYSERDA (New York State Energy Research and Development Authority)
What people say
Prompt service Professional technicians Fair pricing Energy-efficient solutions 24/7 availability
Services
Heating Service
We provide comprehensive heating installation, repair, and maintenance for residential and commercial properties. Our NATE-certified technicians handle natural gas systems, heat pumps, and ductless heating solutions. With 40+ years of experience, we guarantee efficient, code-compliant service using state-of-the-art equipment. Emergency repairs available 24/7.
Air Conditioning Repair
Our BPI-certified team offers AC installation, repair, and seasonal maintenance across Long Island. Services include ductless systems, condenser repairs, and energy-efficient upgrades. We diagnose issues like refrigerant leaks and electrical failures, with 24/7 emergency support for critical cooling needs.
Duct Cleaning
We operate an in-house duct cleaning division using advanced HEPA-filtered equipment. Our technicians remove dust, allergens, and debris from residential and commercial HVAC systems. Services include dryer vent cleaning and antimicrobial sanitization to improve indoor air quality and system efficiency.
Water Heater Installation
We install, repair, and maintain all water heater types including tankless, gas, and electric models. Our team addresses issues like insufficient hot water, leaks, and sediment buildup. We offer high-efficiency units with available rebates and 10-year warranties for residential and commercial clients.
Commercial HVAC
We service commercial properties with central AC, gas boilers, and heating systems. Our team provides 24/7 emergency repairs, preventive maintenance contracts, and energy audits. We offer 0% financing options and specialize in large-scale installations for offices, retail spaces, and industrial facilities.
Questions
What areas do you serve?
We serve Nassau County, Suffolk County, Queens, and surrounding areas in New York.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC repair services for urgent heating and cooling needs.
Are your technicians certified?
Our team includes NATE-certified and BPI-certified HVAC professionals with industry-leading expertise.
What HVAC brands do you work with?
We service all makes and models, including Carrier, Lennox, Trane, and Rheem equipment.
Do you offer financing options?
Yes, we provide 0% financing for qualified customers on commercial HVAC installations and replacements.
How often should HVAC systems be serviced?
We recommend annual maintenance for most systems, with twice-yearly checks for older units.
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