South Carolina HVAC license requirements at a glance
- Issued by
- SC Department of Labor, Licensing and Regulation (Contractor's Licensing Board / Residential Builders Commission)
- License required
- Yes, the license depends on the work: commercial mechanical through the CLB, residential HVAC through the RBC
- Experience
- 2 years practical experience
- Exam
- PSI trade exam (open book) plus Business Management and Law exam for your track
- State fees
- $220 residential license fee; commercial fees vary by license group; AC trade exam $60
- Renewal
- Every 2 years (odd years)
- Avg. SC HVAC salary
- $53,790/yr (2025)
- Federal
- EPA Section 608 required
How do you get an HVAC license in South Carolina?
- Start paid HVAC work under a licensed contractor, the residential track needs only 1 year of experience in the past 5, the commercial track 2 years at journeyman, foreman, supervisor, or contractor level
- Obtain EPA Section 608 certification for refrigerant handling (federal requirement)
- Pick your track: Residential HVAC Specialty through the Residential Builders Commission, or Mechanical Contractor through the Contractor's Licensing Board for commercial work
- Pass both PSI exams for your track: the trade exam (the commercial AC exam is 80 questions, open book, 4 hours, about $60) and the Business Management and Law exam
- File with your commission: residential applicants submit the $10,000 surety bond and $220 license fee; commercial applicants submit a financial statement or bond that sets their license group and project ceiling
What license tiers does South Carolina offer?
Two parallel tracks rather than tiers: the Residential HVAC Specialty Contractor license (Residential Builders Commission, 1 year of experience, homes only) and the Mechanical Contractor license (Contractor's Licensing Board, 2 years supervisory experience, commercial work). Commercial licenses carry a group classification set by your financial showing, which determines your maximum project size. There is no state technician license; techs work under licensed contractors.
What is the South Carolina HVAC exam like?
Both tracks use PSI and both require two exams: the trade exam and Business Management and Law. The commercial air conditioning trade exam is open book, 80 questions, 4 hours, 56 correct to pass, about $60, with approved references allowed. Additional commercial subclassifications (heating, packaged equipment, refrigeration, process piping) each carry their own exam. Reciprocity with Georgia, Tennessee, Texas, and Utah can waive the trade exam for already-licensed contractors.
How much does an HVAC license cost in South Carolina?
The residential track runs about $500-$600 all-in: the PSI exams, the $220 license fee, and the $10,000 surety bond premium (typically $100-$200 per year). The commercial track varies with your license group: exam fees around $60-$100 per exam, application fees, and a bond or financial statement that scales from $7,000 to $300,000 depending on the project ceiling you want. Both renew in odd-numbered years.
How long does it take to become an HVAC tech in South Carolina?
The clock is the 2 years of practical experience, paid full-time work under a licensed contractor. South Carolina reaches licensure fast: the residential HVAC track requires just one year of experience in the past five, and the commercial mechanical track requires two years in a supervisory role, both plus two PSI exams.
Is HVAC a good career in South Carolina?
South Carolina average from state wage data (2025 estimate). National median from the U.S. Bureau of Labor Statistics (2023). Verify current figures with BLS.
What does it take to start your own HVAC business in South Carolina?
Residential contractors post a $10,000 surety bond when project costs exceed $5,000, pay the $220 license fee, and renew by June 30 of odd years. Commercial mechanical contractors are classified into license groups by a financial statement or bond ($7,000 to $300,000), which caps bid sizes, and renew by October 31 of odd years. Add general liability insurance and workers comp as you hire, plus local business licenses by municipality.
What most guides get wrong about South Carolina
South Carolina's trap is the two-commission split: residential HVAC runs through the Residential Builders Commission and commercial through the Contractor's Licensing Board, with different experience rules, different bonds, and different exams, and holding one does not authorize the other side's work. The other detail that surprises applicants: the commercial license group system means your financial statement, not your skill, sets the maximum project size you can legally take, so the financial paperwork deserves as much attention as exam prep.
South Carolina HVAC license: frequently asked questions
Do you need a license for HVAC work in South Carolina?
Yes, and the threshold is low: residential HVAC work over roughly $200 requires the Residential Specialty license, and commercial mechanical work above the statutory threshold (sources cite both $5,000 and $10,000; verify the current figure with LLR) requires the Mechanical Contractor license. Working under a licensed contractor as an employee requires no individual license.
What is the difference between the residential and commercial HVAC licenses?
Different commissions, different requirements: the Residential HVAC Specialty license (Residential Builders Commission) needs 1 year of experience and a $10,000 bond, and covers homes only. The Mechanical Contractor license (Contractor's Licensing Board) needs 2 years of supervisory-level experience and a financial statement or bond that sets your license group, which caps your project sizes, with bonds ranging from $7,000 to $300,000 by group.
How hard is the South Carolina HVAC exam?
Friendlier than most: the commercial air conditioning exam is open book, 80 questions in 4 hours, needing 56 correct (70%), with the reference books allowed in the room. The Business Management and Law exam is the portion that trips up trade-strong candidates, so give it real preparation time.
Does South Carolina have HVAC license reciprocity?
Yes, South Carolina maintains reciprocity for the air conditioning license with Georgia, Tennessee, Texas, and Utah, which can waive the trade exam for licensed contractors from those states. Business and financial requirements still apply, and Tennessee's waiver covers commercial classifications specifically.
HVAC licensing in every state
Blue states are live. Orange is this page. Gray states are publishing weekly.