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  • ductless
    • Ductless AC & Heating Installation
    • Ductless Air Conditioner Contractor
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    • Ductless System Warranties and Costs
    • Mini-Split Air Conditioning & Heating
    • Mini-Split Repair & Maintenance
  • Commercial HVAC
    • Commercial Air Conditioning Installation & Repair
    • Commercial Boilers Installation & Repair
    • Commercial Heating Installation & Repair
    • Commercial Maintenance
      • Commercial Cooling System Tune-Ups
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      • Hard Start Kit
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      • Protecting Your Compressor

Serving Long Island Since 1934   516.488.1800

bbb a+ Contact Us

Serving Long Island Since 1934   516.488.1800

  • bbb a+
  • Contact Us
  • About
    • Careers
    • Emergency Service
    • Our Company History
    • Customer Testimonials
    • Our Guarantee
    • Our Qualifications
    • Apply For Financing
    • HVAC Maintenance Plans
    • Join Our Newsletter
    • Residential Heating & Cooling
      • Ductless Heating and Cooling
      • Comfort Products
        • Whole House Humidifiers
        • Ductwork Modifications
      • Air Purification: Kill up to 99% of viruses, bacteria and mold
        • Air Sterilization
      • Home Safety Products
        • Carbon Monoxide Detector
      • Energy Saving Products
        • Additional Return Air Runs
        • Attic Ventilator
        • Digital Setback Thermostat
    • generators
    • Privacy Policy
    • Professional Affiliations
    • COVID-19
  • Air Conditioning
    • New Air Conditioning Installation
    • Air Conditioning Repair
    • Air Conditioning Maintenance
    • AC Service
    • Air Conditioning Systems
    • Ductless Air Conditioning
    • Mini-Split Air Conditioning
    • Indoor Air Quality
    • Variable Refrigerant Volume (VRV) Air Conditioning
    • High Velocity Air Conditioning
  • Heating
    • Heat Pumps
    • heating system maintenance
    • heating system repair
    • heating systems
    • Heating Service
    • new heating system installation
    • High Velocity Heating
    • Ductless Heating
    • boilers
      • boiler maintenance
      • boiler repair
      • Boiler Service
      • gas boiler systems
      • new boiler installation
      • Wall-Hung Boilers
    • Furnaces
      • Gas Furnaces
        • gas furnace repair
        • gas furnace maintenance
        • gas furnace installation
        • Gas Furnace Service
        • high efficiency gas furnace
    • Oil Conversions
    • Air Quality Products
  • ductless
    • Ductless AC & Heating Installation
    • Ductless Air Conditioner Contractor
    • ductless repair & maintenance
    • Ductless System Warranties and Costs
    • Mini-Split Air Conditioning & Heating
    • Mini-Split Repair & Maintenance
  • Commercial HVAC
    • Commercial Air Conditioning Installation & Repair
    • Commercial Boilers Installation & Repair
    • Commercial Heating Installation & Repair
    • Commercial Maintenance
      • Commercial Cooling System Tune-Ups
      • Commercial Heating System Tune-Ups
    • Commercial Rooftop Installation & Repair
    • Variable Refrigerant Flow (VRF) Commercial Ductless
  • Resources
    • Kerry’s HVAC Blog
    • Ask a Tech
    • Get a Quote
    • Learn About Ductless Systems (Infographic)
    • HVAC Solutions
      • Ceiling Saver Kit
      • Condensate Drainage
      • Hard Start Kit
      • Remote Monitoring Devices
      • Surge Suppressors
      • Protecting Your Compressor
T. F. O'Brien Cooling & Heating » Residential Heating & Cooling » Get a Quote » Thank you

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“

Testimonial Rating
From the first phone call to inquire about the service to the team leaving the completed job, everyone walked me through the process to set my expectations. It was my first experience working with a service company that treats you like family. I will continue to use them for maintenance services and highly recommend them to anyone looking for heating and cooling services.

J.R. - Franklin Square, NY

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T.F. O'Brien
100 Denton Ave., New Hyde Park, NY
(516) 488-1800
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