Tennessee
HVAC in Tennessee
78 HVAC companies in its metro areas within about 25 to 35 miles of Nashville and Memphis and Knoxville and Chattanooga – plus how Tennessee licenses HVAC work.
Metro areas
Tennessee cities we cover
Tennessee rules
Do HVAC contractors need a license in Tennessee?
How Tennessee licenses HVAC work
Licensing is split between the state and local governments.
Who licenses: Tennessee Board for Licensing Contractors, Department of Commerce and Insurance
License types: CMC-C (HVAC, Refrigeration and Gas Piping; Solar HVAC (Geothermal)), CMC (Full mechanical contracting classification).
Companies: Under Tenn. Code Ann. Title 62, Chapter 6, contractors on projects of $25,000 or more, including mechanical and HVAC work, must hold a Board-issued contractor license with the matching classification (CMC-C covers HVAC and refrigeration).
Local rules: Most HVAC projects under $25,000 are regulated locally, and cities and counties may issue their own mechanical or journeyman HVAC licenses (some counties also require a Home Improvement license).
Check a license: search.cloud.commerce.tn.gov
Search the company on the state license lookup for jobs of $25,000 or more, and for smaller jobs call your city or county codes office to learn what local HVAC license applies.
Federal rule: in every state, technicians who handle refrigerant must hold EPA Section 608 certification, whatever the state or city requires.
Sources: tn.gov, tn.gov, tn.gov, support.commerce.tn.gov. Checked October 2026 from official sources. This is not legal advice.
Before you hire
Ask for the license number and check it on the official lookup where one exists. Ask for proof of insurance and a written, itemized estimate, and ask who pulls the permit if the job needs one – a new furnace, heat pump or air conditioner usually does.
Questions
Tennessee HVAC questions
Do HVAC contractors need a license in Tennessee?
In Tennessee, licensing is split between the state and local governments through the Tennessee Board for Licensing Contractors, Department of Commerce and Insurance. You can check a license at search.cloud.commerce.tn.gov.
Where in Tennessee do you list HVAC companies?
In Tennessee: Nashville (26), Memphis (24), Knoxville (22), Chattanooga (20). Each city page lists companies based within about 25 miles – 35 in smaller metro areas – whose own website names that city or nearby towns.
Do technicians need EPA certification?
Yes, in every state: federal rules require technicians who handle refrigerant to hold EPA Section 608 certification. A state or city license is a separate requirement.
How do I get an HVAC company listed in Tennessee?
HVAC companies can add their business free. We check every listing against the business’s own website.
Neighboring states: Kentucky · Virginia · North Carolina · Georgia · Alabama · Mississippi · Arkansas · Missouri.
Request an HVAC company
Ask us to find an HVAC company in Tennessee
Tell us the job and your ZIP code. We pass it to listed companies that serve your area.
No heat in freezing weather, or no cooling in dangerous heat? Call a company from the list that says it takes emergency calls – a form is not fast enough. If you smell gas or a carbon monoxide alarm sounds, leave first and call 911 or your gas utility from outside.