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50+ Years
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Emergency
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Trusted HVAC Services in Cumming & Nashville Since 1968
Reliance Heating & Air has been a trusted provider of HVAC solutions in the southeastern United States since 1968. As a veteran- and family-owned business, we serve residential and commercial clients across Metro Atlanta, GA, and Nashville, TN, with a commitment to excellence rooted in decades of experience. Our team of NATE-certified technicians delivers professional installation, repair, and maintenance services for heating, cooling, and air quality systems, supported by ongoing in-house training to stay current with industry advancements. With over 275,000 mechanical systems installed and a focus on customer satisfaction, we prioritize quality workmanship and transparent communication. Our partnerships with reputable brands like Carrier, Lennox, and Trane ensure access to cutting-edge technology, while accreditations such as ACCA Quality Assured Contractor and Energy Star 3.0 Certification underscore our dedication to standards.

We offer 24/7 emergency services, flexible financing options, and comprehensive maintenance programs to meet diverse client needs. Backed by industry affiliations and a track record of awards, including Lennoxs Circle of Excellence Award, we strive to build lasting relationships through reliability and expertise. Our performance guarantee ensures systems operate as promised when maintained according to manufacturer guidelines, and our insured team undergoes rigorous background checks for client peace of mind. From residential ductless systems to commercial HVAC projects, we combine technical proficiency with personalized service to address every clients unique requirements.
Services
HVAC Repair System Installation Ductless AC Services Commercial HVAC Planned Maintenance
Details
  • Year established: 1968
Highlights and features
  • We offer 24/7 emergency HVAC services for urgent needs.
  • Our team consists of NATE-certified technicians with 20+ years of experience.
  • Financing options available for residential and commercial projects.
  • We service all major HVAC brands, including Carrier, Lennox, and Trane.
  • Award-winning reputation with over 275,000 systems installed since 1968.
Associations and certifications
  • ACCA Quality Assured Contractor
  • Energy Star 3.0 Certified
  • Mitsubishi Diamond Dealer
  • NATE Certified (North American Technical Excellence Certification)
What people say
Prompt service Professional technicians No complaints Fair pricing Long-term trust
Services
HVAC Repair
Our NATE-certified technicians provide rapid diagnosis and repair of heating and cooling systems, including emergency services for urgent breakdowns. We service all brands and models, ensuring optimal performance with manufacturer-recommended parts and procedures. Clients benefit from transparent pricing and durable solutions for residential and commercial systems.
System Installation
We install energy-efficient HVAC systems tailored to property size and climate needs, featuring brands like Carrier, Lennox, and Trane. Our process includes precise load calculations and performance guarantees for long-term reliability. Customers receive expert guidance on system selection and financing options for seamless upgrades.
Ductless AC Services
Specialized installation and maintenance of ductless heat pumps and air conditioners for homes without existing ductwork. Our solutions offer zoned temperature control and energy savings, with expert placement and customization to match architectural layouts and client preferences.
Planned Maintenance
Seasonal maintenance programs prevent breakdowns and extend system lifespan through cleaning, calibration, and part inspections. Clients with maintenance contracts receive priority scheduling and discounted repair rates, ensuring consistent efficiency and performance year-round.
Commercial HVAC
Comprehensive heating and cooling solutions for commercial properties, including new construction installations and large-scale system maintenance. Our team handles complex projects with minimal disruption, adhering to industry standards for energy efficiency and regulatory compliance in office buildings, retail spaces, and industrial facilities.
Questions
What HVAC services does Reliance offer?
We provide installation, repair, and maintenance for heating, cooling, and air quality systems, including emergency services and commercial solutions.
Do you service all HVAC brands?
Yes, we work on all makes and models, including Carrier, Lennox, Trane, Goodman, and Mitsubishi.
Are financing options available?
Yes, we offer financing for residential and commercial HVAC projects to accommodate budget needs.
What areas do you serve?
We serve Metro Atlanta, GA, Nashville, TN, and surrounding regions with prompt, reliable service.
Is emergency HVAC service available?
Yes, our technicians are available 24/7 for urgent heating and cooling repairs.
What accreditations do you hold?
We are ACCA-certified, Energy Star 3.0-certified, and Mitsubishi Diamond Dealers with NATE-certified technicians.