At One Call HVAC, we have spent over 15 years building a dependable heating and cooling service for homeowners and businesses in Greenville and Spartanburg. Our company began with one clear commitment: provide honest, reliable HVAC service throughout the Upstate. As a family-owned and operated business, we know that dependable comfort matters in every home. For that reason, we give every customer the consideration we would give our own family and care for every home as though it belonged to us. Our team consists of licensed and certified HVAC technicians whose combined experience spans decades. With that knowledge behind every assignment, we work to keep heating and cooling equipment functioning efficiently year-round.
We continually strengthen our expertise through ongoing technician training focused on the latest HVAC equipment, technologies, techniques, and industry best practices. By remaining current, we can offer modern solutions without losing the personal approach that has made us a trusted local name. Our certified technicians are also available around the clock because HVAC emergencies can happen outside normal business hours, and we are committed to restoring comfort when it is needed most. We place customer satisfaction at the center of our service by providing transparent pricing, clear communication, and workmanship that exceeds expectations. Our complete satisfaction guarantee reflects our confidence in our work: when you are not satisfied, we will make it right. Contact us at (864) 362-8810.
We continually strengthen our expertise through ongoing technician training focused on the latest HVAC equipment, technologies, techniques, and industry best practices. By remaining current, we can offer modern solutions without losing the personal approach that has made us a trusted local name. Our certified technicians are also available around the clock because HVAC emergencies can happen outside normal business hours, and we are committed to restoring comfort when it is needed most. We place customer satisfaction at the center of our service by providing transparent pricing, clear communication, and workmanship that exceeds expectations. Our complete satisfaction guarantee reflects our confidence in our work: when you are not satisfied, we will make it right. Contact us at (864) 362-8810.
Served areas
- Greenville & Spartanburg, SC
Details
- Employees: 10
- Licensed
- Insured
Highlights and features
- Complete heating and cooling solutions for residential and commercial properties
- 24/7 emergency HVAC service for urgent heating and cooling needs
- Licensed, bonded, and insured technicians delivering professional HVAC service
- Expert installation, repair, and maintenance for major HVAC brands
- Preventive maintenance plans improve efficiency and extend system lifespan
- Honest communication, trusted parts, and dependable long-term HVAC reliability
Payment methods
- Cash, Debit cards, Credit cards, Financing available
Services
Our air conditioning services are available for systems requiring installation, repair, maintenance, or emergency attention. We assess equipment carefully and provide recommendations based on the home's cooling requirements. Services include energy-efficient system installation, load calculations, refrigerant leak repair, component replacement, thermostat troubleshooting, filter changes, coil cleaning, system optimization, and preventive maintenance. 
We are equipped to handle a broad range of heating requirements, whether a system needs routine maintenance, professional installation, or immediate repair. Our services cover furnaces, heat pumps, boilers, and ductless systems, along with safety testing and efficiency improvements. We also provide emergency heating repair for no-heat situations and other urgent system failures. 
Professional ductwork service can address rooms that remain difficult to heat or cool, excessive dust, unusual odors, high energy costs, and noisy airflow. We assess the entire duct system to locate inefficiencies and damaged areas. Our solutions include leak sealing, duct repair, insulation upgrades, damper work, airflow balancing, and complete duct installation. 
Our preventive HVAC maintenance services help protect your investment and support reliable comfort throughout the year. We provide scheduled tune-ups designed to improve system efficiency, identify developing problems, and reduce unexpected breakdowns. Regular service can also help extend equipment life, maintain manufacturer warranties, and reduce unnecessary energy use and repair costs. 
Our professional indoor air quality services are designed to reduce common household air concerns while improving overall comfort. We offer systems for allergen and particle removal, odor reduction, humidity balance, biological growth control, and fresh air circulation. Each project starts with an assessment, followed by a tailored improvement plan and dependable installation.
Reviews (5)
Brittany Moore
Jun 17, 2026
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Kristy Witt
May 04, 2026
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Jackie P. JackieTest
Feb 15, 2026
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Clifford Bowers
Feb 11, 2026
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Andrew E.
Feb 10, 2026
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Contacted One Call when our HVAC went out during the winter storm. We got a call back immediately from Avery who went out of his way to make a service call to our house within a few hours. He was professional and courteous and communicated clearly what our options were to repair our unit. No high pressure sales, honest upfront pricing that was very competitive we ended upgrading our unit that was over 20 years old for not much more than what it would have cost to repair our old outdated unit. Couldnt be more pleased with the level of service we received. These guys come highly recommended!