HVAC Technician License Requirements in South Carolina
| Licensing Authority | SC Contractors' Licensing Board (commercial) / SC Residential Builders Commission (residential), both under LLR (SC CLB / SC RBC) |
| License Type | Commercial HVAC/Mechanical Contractor (Mechanical License, Groups 1-5) + Residential Specialty HVAC Contractor |
| Experience Required | Commercial: 2 years of work experience within the last 5 years in HVAC/air conditioning. Residential: 1 year of work experience within the last 5 years. HVAC technicians do not need a personal license but must work under a licensed contractor. |
| Exam Required | Yes — SC Commercial Air Conditioning/HVAC Trade Exam + SC Business Management & Law (Commercial) + SC Residential HVAC Trade Exam + SC Residential Business & Law Exam |
| Bond Required | Yes — $10,000 |
| Insurance | General liability: recommended. Workers comp: required with employees |
| Continuing Education | Not required |
| Processing Time | 7-10 business days (residential); 3-4 weeks (commercial) |
Fee Breakdown
| Application Fee | $100 |
| Exam Fee | $75 |
| Initial License Fee | $160 |
| Est. Initial Total | $335 |
Related & additional fees
Separate or ongoing costs — not included in the estimate above.
| Commercial mechanical contractor license | $350 |
| Half-period residential license | $80 |
| Each PSI exam section | $75 |
Renewal: $160 every 2 years (commercial: expires Oct 31 odd years; residential: expires June 30 odd years)
Exam Requirements
SC Commercial Air Conditioning/HVAC Trade Exam
SC Business Management & Law (Commercial)
SC Residential HVAC Trade Exam
SC Residential Business & Law Exam
Exam provider: PSI
Recommended exam prep
Formal prep pays for itself against a $100+ retake. Many states examine contractors on two separate papers — the trade exam and a business and law exam — so we list the course covering both first, with trade-specific depth after.
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Mometrix · SponsoredContractor License Online Study CourseFull online prep course covering the trade and business-and-law exams — video lessons, practice questions, and a study plan built for a first-try pass.See the course →
Mometrix · SponsoredContractor's Exam FlashcardsPortable flashcards for the high-frequency exam topics — a cheaper add-on for drilling terms and code references on the go.See the flashcards →Set up the business before you apply in South Carolina
Most states license the company as well as the person, so the application usually asks for an LLC or corporation and a registered agent in South Carolina. Northwest forms the entity and acts as your registered agent — a flat fee, no upsell funnel.
Some links below are affiliate links. If you buy through them we may earn a commission at no extra cost to you.
Form an LLC with Northwest→License Tiers
Mechanical Group 1 (Commercial)
Projects up to $35,000. Net worth $3,500 or $7,000 surety bond.
Exam: Required
Mechanical Group 2 (Commercial)
Projects up to $100,000. Net worth $10,000 or $15,000 surety bond.
Exam: Required
Mechanical Group 3 (Commercial)
Projects up to $200,000. Net worth $20,000 or $30,000 surety bond.
Exam: Required
Mechanical Group 4 (Commercial)
Projects up to $400,000. Net worth $40,000 or $60,000 surety bond.
Exam: Required
Mechanical Group 5 (Commercial)
Unlimited. Net worth $200,000 or $300,000 surety bond.
Exam: Required
Residential Specialty HVAC Contractor
Residential HVAC work over $200. Requires $10,000 surety bond.
Exam: Required
License Reciprocity
This state has reciprocity agreements with 9 states. View full reciprocity details — You may be able to skip the trade exam if you hold a valid license from one of these states.
Notes
- Commercial HVAC work over $10,000 requires CLB mechanical contractor license
- Residential HVAC work over $200 requires RBC specialty license
- HVAC technicians are NOT individually licensed — only contractors need a license
- EPA Section 608 certification required for refrigerant handling (separate from state license)
- No continuing education required for HVAC license renewal
- Trade exam may only be taken 3 times in a 12-month period
- All commercial exams are open-book
You're licensed in South Carolina as an HVAC technician — the next 30 days
Most of the steps below are required before your first paid job; the order is the order the state and its counties will ask for them.
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Form the business and get an EIN.
The SC Contractors' Licensing Board (commercial) / SC Residential Builders Commission (residential), both under LLR issues the Commercial HVAC/Mechanical Contractor (Mechanical License, Groups 1-5) + Residential Specialty HVAC Contractor; the business that invoices South Carolina customers is a separate decision. A sole proprietorship is the default, an LLC keeps business liability off your personal assets, and either needs an EIN before the first payroll. Settle it before the license number goes on an estimate.
Post the bond.
South Carolina requires a $10,000 surety bond. Residential specialty: $10,000 surety bond required when work exceeds $5,000. Commercial mechanical: bond amounts vary by group ($7,000 to $300,000) and serve as alternative to net worth requirements. How contractor bonds work→
Carry general liability insurance.
South Carolina does not set a general liability minimum for this trade, but most permits and commercial customers ask for proof of GL cover. Workers' compensation required for businesses with 4+ employees. GL not state-mandated but strongly recommended. Contractor insurance requirements→
Set up quoting, scheduling and invoicing before the first call.
Your first customers will ask for a written estimate and expect to pay by card on site. Most one-truck HVAC technician businesses run that on field-service software; Housecall Pro is the one we link because it is built for this size of company and this link carries 20% off your first 12 months. Start a free trial of Housecall Pro→
Keep the license.
Renewal is every 2 years (commercial: expires Oct 31 odd years; residential: expires June 30 odd years) at $160.
Other licenses in South Carolina
- General Contractor license in South Carolina
Statewide license required · $425 in initial government fees · SC CLB
- Electrician license in South Carolina
Statewide license required · $335 in initial government fees · SC CLB / SC RBC
- Plumber license in South Carolina
Statewide license required · $335 in initial government fees · SC CLB / SC RBC
- Roofing Contractor license in South Carolina
Statewide license required · $425 in initial government fees · SC CLB / SC RBC
Frequently Asked Questions
Do I need an hvac technician license in South Carolina?
Yes, South Carolina requires a statewide hvac technician license through the SC Contractors' Licensing Board (commercial) / SC Residential Builders Commission (residential), both under LLR.
How much does an hvac technician license cost in South Carolina?
The estimated initial cost is $335, including application, exam, and license fees. A $10,000 surety bond is also required.
What experience do I need for an hvac technician license in South Carolina?
Commercial: 2 years of work experience within the last 5 years in HVAC/air conditioning. Residential: 1 year of work experience within the last 5 years. HVAC technicians do not need a personal license but must work under a licensed contractor.
What exams are required for an hvac technician license in South Carolina?
You must pass the SC Commercial Air Conditioning/HVAC Trade Exam and SC Business Management & Law (Commercial) and SC Residential HVAC Trade Exam and SC Residential Business & Law Exam exams. A passing score of 70% (commercial: 56/80), 65% (residential: 52/80) is required. Exams are administered by PSI.
Do I need a bond for an hvac technician license in South Carolina?
Yes, a $10,000 surety bond is required. Residential specialty: $10,000 surety bond required when work exceeds $5,000. Commercial mechanical: bond amounts vary by group ($7,000 to $300,000) and serve as alternative to net worth requirements.
Does South Carolina have hvac technician license reciprocity?
Yes, South Carolina has reciprocity agreements with 9 states that may apply to hvac technicians. Licensed contractors from these states may be eligible to skip certain exams or have an expedited application process.
How long does it take to get an hvac technician license in South Carolina?
Processing time is typically 7-10 business days (residential); 3-4 weeks (commercial) after submitting a complete application.
Is continuing education required for hvac technicians in South Carolina?
No, South Carolina does not currently require continuing education for hvac technician license renewal.
Next steps
You know the requirements for hvac technicians in South Carolina— here's how to actually pass and apply.
Data last verified: 2026-04-02 | Source: SC CLB / SC RBC