Clarksville, TN HVAC Training Schools & Certification

Located at the confluence of the Cumberland and Red Rivers, Clarksville, TN, has had a thriving economy since its founding in 1785. The early economy was based on tobacco, but today it is a major manufacturing, transportation, and distribution hub. It’s also home to the U.S. Army’s Fort Campbell, and Clarksville is generally regarded as one of the nation’s fastest-growing cities.

Major employers include Amazon and FedEx distribution centers, Trane, Google, Bridgestone, and LG. The summers can be hot, with averages spiking into the high 90s F, and the winters cold, with temperatures dropping below freezing. Snowfall is light, and rain is plentiful year-round, resulting in an average humidity of around 70 percent. The temperatures and humidity make heating, ventilation, and air conditioning (HVAC) necessary for comfort in homes and businesses. In addition, refrigeration (HVAC/R) is often required to protect products and delicate machinery in the manufacturing and distribution warehouses and centers.

The growing population of Clarksville and the expanding economy necessitate the construction of new homes, commercial buildings, and warehouses. That combination creates a robust demand for HVAC and HVAC/R installers and maintenance technicians.

What Does an HVAC or HVAC/R Technician Do?

HVAC installers and mechanics have a variety of skills. Some are generalists, while others specialize in specific equipment or types of businesses. Overall, they help keep building temperatures and humidity at comfortable levels while maintaining air quality. They can install, inspect, test, and maintain climate control systems, components, and equipment, including electrical components and wiring. They can discuss malfunctions with customers and recommend steps to improve system performance and efficiency. They are also responsible for keeping appropriate records of work performed.

Technicians are supported and kept up to date with industry standards by various associations. The Tennessee Association of Plumbing-Heating-Cooling Contractors (TAPHCC) and the Nashville Area Plumbing and Mechanical Association (NAPMA) are two local groups that provide advocacy, training, and benefits to members.

National associations, which often have state and local chapters, include Air Conditioning Contractors of America (ACCA), Air-Conditioning, Heating, and Refrigeration Institute (AHRI), American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), Sheet Metal and Air Conditioning Contractors National Association (SMACNA), and Refrigeration Service Engineers Society (RSES), among others.

Occupational Demand for HVAC/R Technicians in Clarksville, TN

HVAC is a high-growth industry. According to the Bureau of Labor Statistics (BLS May 2025), the number of HVAC installers and mechanics nationally is expected to increase by 34,500 between 2024 and 2034. That’s a growth rate of 8 percent, nearly three times the 3 percent growth rate for all occupations. Projections Central (June 2026) is even more optimistic. They expect 9.8 percent growth in Tennessee between 2022 and 2032, resulting in 1,010 new HVAC worker positions.

Several factors account for the growth, nationally and locally. New construction drives most growth. For example, Clarksville is located in the “Dixie Alley,” making it subject to the destruction caused by sometimes violent tornadoes. Buildings, and the equipment and systems within them, often need repairs and replacements. Even when undamaged, HVAC and HVAC/R systems are expected to last 10 to 15 years before needing replacement. Older systems in existing buildings may need to be retrofitted to be compatible with new technology and demands of current owners. Maintenance and service contracts are becoming more common, which provide steady work for technicians. Areas like Clarksville that experience increasing population and commercial endeavors keep HVAC installers busy; and technicians who specialize in routine maintenance have work year-round regardless of economic fluctuations.

The BLS reports that approximately five percent of HVAC technicians are self-employed.

It should be noted that installers and mechanics have a higher rate of injuries and illnesses than other occupations. They lift heavy equipment, handle toxic materials like refrigerants, and are exposed to electrical shocks. They also sometimes work in cramped spaces or outdoors in bad weather. Undergoing training and wearing safety equipment minimizes the dangers.

Even so, there are lots of job opportunities for HVAC and HVAC/R workers in Tennessee. For example, Indeed (May 2026) had 100s of positions available, including those with J.R. Hobbs, Del-Air Mechanical Contractors Inc, McLain Heating, Cooling, and Electrical, McClosky Mechanical Contractors Inc, and Helios HVACR Services. Additionally,job listings on Monster (May 2026) included Universal Heating & Cooling Inc, Jobot, Davron LLC, Nexus Logistics GRP, and Pioneer Heating, Cooling, & Plumbing.

HVAC and HVAC/R Salaries in Clarksville, Tennessee

According to the BLS (May 2025), the wages of national, state, and local HVAC installers and mechanics were as follows. These are the latest figures available as of June 2026:

	United States	Tennessee	Clarksville, TN-KY
Number of workers	409,670	9,740	330
Average annual salary	$64,780	$57,810	$53,720
10th percentile	$40,050	$38,540	$38,530
25th percentile	$48,360	$46,990	$46,410
50th percentile (median)	$61,010	$55,490	$50,480
75th percentile	$77,060	$65,590	$60,980
90th percentile	$95,210	$81,590	$71,790

Wages can vary depending on the source. For example, PayScale (June 2026), which relies on self-reported statistics, reports the following based on 1,999 HVAC technicians nationwide:

10th percentile: $41,000 annual wage
50th percentile: $64,819
90th percentile: $97,000

Lower wages aren’t always as significant as they might appear, as the cost of living in Tennessee is less than in other states. In fact, it is the ninth least expensive state in which to live. The Missouri Economic Research & Information Center (MERIC 2026) shows particular savings in housing and healthcare for Tennesseans. Best Places (June 2026) reports that cost of living in Clarksville is even slightly lower than in other parts of Tennessee.

Accredited HVAC and HVAC/R Schools in Clarksville, TN

Few job opportunities exist for untrained technicians. Some choose apprenticeships to learn their skills. The Tennessee PHCC Online Apprentice Program, based in Knoxville, offers textbook training that apprentices combine with on-the-job training from a local employer. Aspiring HVAC and HVAC/R technicians can also find apprenticeship programs through industry associations such as the following:

Air Conditioning Contractors of America (ACCA)
Mechanical Contractors Association of America (MCAA)
Refrigeration Service Engineers Society (RSES)
Sheet Metal and Air Conditioning Contractors National Association (SMACNA)

Each organization provides details of schedules and fees on its website.

Others opt for formal training in schools. For those, it’s important to select an accredited school. HVAC Excellence and the Partnership for Air-Conditioning, Heating, Refrigeration Accreditation (PAHRA) are the accrediting agencies for HVAC and HVAC/R.

As of June 2026, PAHRA has not accredited a Tennessee School. HVAC Excellence has accredited 17 campuses of the Tennessee College of Applied Technology, including the Clarksville campus. Other schools profiled below have been accredited by other, reputable agencies.

Tennessee College of Applied Technology

TCAT Dickson offers two diploma and two certificate HVAC/R programs at the Clarksville campus. Students can earn a diploma as either a HVAC/R technician (1728 hours) or as a HVAC technician (1296 hours. The certificate programs are for maintenance assistant (864 hours) and assistant installer (432 hours). The coursework is a combination of classroom lectures and hands-on practice in the shop.

Students start with foundation classes in technology, safety, and refrigerant fundamentals. They progress to electrical fundamentals, HVAC electrical components, and HVAC systems installations. Later coursework includes gas heat, heat pumps, HVAC troubleshooting, high efficiency systems, and light commercial HVAC. Students also learn how to read blueprints, and develop skills in pneumatics, basic electronics, math, programmable controllers, and prepare for EPA certification.

Graduates are prepared to seek employment as HVAC and HVAC/R technicians in residential, commercial, and industrial settings. They are also qualified to seek industry certifications from HVAC Excellence/ESCO that can increase job opportunities and lead to better pay.

Location: Clarksville, TN; Dickson, TN
Accreditation: HVAC Excellence, Council on Occupational Education (COE)
Expected Time to Complete: Depends if attending full-time day classes, or part-time or evening classes. The average time is 14 months.

The following schools are located in Nashville and are profiled as options for Clarksville students.

Nashville Auto-Diesel College (NADC)

Nashville Auto-Diesel College is a branch of the Lincoln College of Technology, based in Indiana. NADC offers two HVAC programs: the HVAC/R system technology diploma program (1,200 hours); and an Associate of Applied Science degree in HVAC/R systems technology service management (1,425 hours).

The programs may be completed during the days in-person at the Nashville campus, or in the evenings with hands-on training at the campus and other assignments completed remotely from the student’s home. Both programs combine theory, hands-on shop training, and troubleshooting simulations.

The diploma curriculum includes refrigeration fundamentals, heating systems, electricity, air conditioning systems, air conditioning design and energy conservation, commercial refrigeration systems, and troubleshooting. Students in the degree program complete all the diploma coursework and add English composition, speech communication for management, college algebra, critical thinking for management, and environmental science.

Graduates are prepared for employment with foundational knowledge of climate control and the skills to apply it.

Location: Nashville, TN
Accreditation: Accrediting Commission of Career Schools and Colleges (ACCSC)
Expected Time to Complete: Diploma one year; degree 77 weeks

Nashville State Community College

NSCC offers an online HVAC/R training course that prepares students for entry-level technician positions. The coursework includes more than 200 simulations to reinforce knowledge and skills. Students are prepared to pass the EPA certification exam, HVAC Excellence Employment Ready certifications, and the NATE Ready-to-Work certificate.

The curriculum includes topics such as heat, temperature, and pressure; refrigeration and refrigerants; safety, tools and equipment, and shop practices; leak detection, system evacuation, and system cleanup; calibrating instruments; automatic controls; electric motors; commercial refrigeration; all-weather systems; and domestic appliances, among others.

Open enrollment allows students to begin when they are ready. The program is self-paced.

Location: Nashville, TN
Accreditation: Southern Association of Colleges and Schools Commission on Colleges (SACSCOC)
Expected Time to Complete: One year

Fortis Institute

The HVAC program at Fortis Institute trains students in the skills they need to install, maintain, and repair heating, ventilation, and air conditioning systems and equipment. Students learn from experienced instructors via classroom lectures and hands-on training in labs.

Their coursework includes using computerized diagnostics to troubleshoot problems, how to service and repair refrigeration systems, gas heating systems, heat pumps, and air conditioning systems to keep homes and businesses comfortable. The curriculum includes topics such as thermodynamics, HVAC/R controls, motors and motor controls, refrigerants, commercial refrigeration, industrial and commercial air conditioning, and HVAC troubleshooting and service calls, and others. Students are also prepared to take the EPA exam.

Graduates are qualified to seek positions as HVAC technicians in residential and commercial settings.

Location: Nashville, TN
Accreditation: Accrediting Bureau of Health Education Schools
Expected Time to Complete: 54 weeks

Aspiring Clarksville technicians who cannot attend one of the above schools may find that an online institution will meet their needs. More information on accredited programs is available at online HVAC training.

HVAC and HVAC/R Certification and Licensing in Clarksville, TN

HVAC and HVAC/R technicians must be credentialed before seeking employment. A mandatory credential is the Environmental Protection Agency (EPA) Section 608 for technicians who handle refrigerants. The exams and certifications are based on the type and size of equipment on which a technician works, as described below:

Type I – for servicing small appliances
Type II – for servicing or disposing of high-pressure appliances, except small appliances and automotive air conditioning
Type III – for servicing or disposing of low-pressure appliances
Universal – for servicing all types of equipment

The EPA website includes information about each level and exam. Most training programs include preparation for the exams.

Industry organizations offer information and certification testing, including Section 608, that increase a technician’s employability. These include, but aren’t limited to:

HVAC Excellence (e.g., Heating, Electrical, Air Conditioning Technology [HEAT], HEAT Plus, heat oil combustion, systems diagnostics, green awareness, etc.)
North American Technician Excellence or NATE (e.g., air conditioning, air distribution, heat pump, hydronic oil, commercial refrigeration, etc.)
Refrigeration Service Engineers Society or RSES (e.g., commercial air conditioning, domestic service, dynamic compression, etc.)

Details of availability, scheduling, and fees are on each organization’s website. There is also more information on the HVAC certifications page.

The Tennessee Department of Commerce and Insurance requires HVAC contractors and subcontractors to obtain Certified Mechanical Contractor (CMC) licensing for projects of $25,000 or more. All contractors must take a business and law exam. An additional trade-specific exam, including HVAC, is also required. In addition to testing, applicants must submit financial information, reference letters, proof of insurance, proof of three years experience, a notarized application, and pay a fee. Licenses must be renewed every two years. Some municipalities require contractors with projects of less than $25,000 to obtain a limited licensed electrician (LLE) license or a CMC-C license.

The City of Clarksville requires contractors with projects totaling $25,000 or more to have a state contractor’s license. All contractors must register and obtain a city business license.

HVAC professionals, including those with a home-based business, are encouraged to ensure compliance with current state and local requirements before starting a project, as regulatory agencies may update their guidelines.

Sandra Smith

Sandra Smith was introduced to the HVAC industry when she worked as a bookkeeper and secretary for a small air-conditioning contractor. She eventually became a CPA and started her own practice specializing in small business taxes and accounting. After retiring from business, she began writing articles for newspapers, magazines, and websites. She also authored four books. Sandra makes her home in the mountains with a rescue dog that naps on her lap as she writes.