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Reliance Heating and Air Conditioning is a well-established, family-owned HVAC company headquartered in Cumming, Georgia, with additional offices in Conyers and service coverage throughout the Metro Atlanta area and parts of Tennessee, including Nashville and Chattanooga. Founded in 1968, the company brings over 55 years of industry experience, providing trusted heating, cooling, and indoor air-quality solutions. Over the decades, Reliance has completed more than 275,000 HVAC installations across residential, commercial, and new-construction projects, earning a strong reputation for reliability, honesty, and superior craftsmanship.


Services Offered:

Reliance Heating and Air Conditioning provides a comprehensive range of services designed to meet both residential and commercial needs:

  • Heating, Cooling & Air-Conditioning Services: Repair, replacement, and installation of furnaces, air conditioners, heat pumps, and ductless mini-split systems. They also provide routine tune-ups, inspections, and seasonal maintenance to keep systems performing efficiently.
  • Indoor Air-Quality Solutions: Advanced air filtration systems, humidity control, and duct cleaning to improve air quality and comfort inside homes and offices.
  • Commercial & New Construction HVAC: Full-service design, installation, and maintenance of HVAC systems for new construction and commercial facilities.
  • Maintenance Programs: Preventive service plans aimed at extending equipment life, improving performance, and reducing long-term energy costs.

Licensing & Certifications:

Reliance Heating and Air Conditioning is fully licensed, insured, and certified, holding several key industry credentials that reflect its commitment to quality and expertise:

  • NATE-Certified Technicians (North American Technician Excellence)
  • ACCA Quality Assured Contractor
  • ENERGY STAR 3.0 Certified Installer for energy-efficient systems
  • EarthCraft Certified Contractor (Southface Institute)
  • Mitsubishi Diamond Dealer status for product and service excellence

These certifications demonstrate the company’s technical proficiency, adherence to safety standards, and dedication to sustainable HVAC practices.

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  • Monday07:00 AM - 05:00 PM
  • Tuesday07:00 AM - 05:00 PM
  • Wednesday07:00 AM - 05:00 PM
  • Thursday07:00 AM - 05:00 PM
  • Friday07:00 AM - 05:00 PM
  • Saturday07:00 AM - 04:00 PM
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Additional Details

  • Wheelchair Accessible:Yes
  • Accept Payments:Credit Cards
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