HVAC License in South Carolina: Fees, Requirements & Startup Costs
Quick answer: South Carolina’s Residential Builders Commission licenses residential heating and air contractors; the Contractor’s Licensing Board licenses mechanical HVAC entities for covered work over $10,000. A residential startup needs an individual’s RBH license and sometimes a firm Certificate of Authorization. The official residential fees are $100 to apply, $220 for the initial RBH license, and $100 for a required firm certificate. A mechanical entity initially pays $350 under the board fee list.
Match the HVAC service list to the credential
The residential Heating and Air license, or RBH, belongs to an individual. A company using that person as its resident licensee must also hold a Residential Business Certificate of Authorization unless the licensee owns at least 51% of the firm and is its sole resident licensee. Resolve that ownership question when forming the business, since adding another resident licensee or changing ownership can affect the exception.
Mechanical HVAC contracting over $10,000 uses a Contractor’s Licensing Board entity license. Its categories are Air Conditioning, Heating, Packaged Equipment, and Refrigeration. The company needs a certified primary qualifying party for each requested subclassification. Write down whether the planned jobs involve standalone cooling, heating, packaged systems, or refrigeration before selecting classifications. The contractor statute governs the mechanical scope. A mechanical contractor is exempt from residential specialty licensure within its licensed classification; that exemption does not expand its classification to unrelated HVAC work.
Licensing in South Carolina
Jurisdiction: state
Authority: South Carolina Residential Builders Commission; South Carolina Contractor's Licensing Board
Residential specialty heating and air conditioning contracting is licensed by the Residential Builders Commission. Broader mechanical HVAC contracting over $10,000 requires a Contractor's Licensing Board entity license and certified primary qualifying party in the applicable Air Conditioning, Heating, Packaged Equipment, or Refrigeration subclassification; a mechanical contractor is exempt from residential specialty licensure in its licensed classification.
Mechanical Contractor — applicable HVAC subclassification
BUSINESS Entity license in Air Conditioning, Heating, Packaged Equipment, or Refrigeration as applicable; requires a PQP for each subclassification.
| Fee | Amount | Period (years) |
|---|---|---|
| Initial general or mechanical contractor entity license | $350 OFFICIAL FEE Source — llr.sc.gov | — |
| On-time biennial mechanical contractor renewal | $135 OFFICIAL FEE Source — llr.sc.gov | 2 |
Primary Qualifying Party — applicable HVAC subclassification
INDIVIDUAL Certified individual designated to direct or review work in each requested mechanical subclassification; technical and SC Business Management and Law exams unless technical waiver applies.
Residential Specialty Heating and Air License (RBH)
INDIVIDUAL Individual residential heating and air conditioning specialty license; a firm needs a Certificate of Authorization unless the licensee owns at least 51% and is sole resident licensee.
| Fee | Amount | Period (years) |
|---|---|---|
| RBH application | $100 OFFICIAL FEE Source — llr.sc.gov | — |
| Initial RBH license | $220 OFFICIAL FEE Source — llr.sc.gov | 2 |
| RBH renewal | $220 OFFICIAL FEE Source — llr.sc.gov | 2 |
Residential Business Certificate of Authorization
BUSINESS Required for residential specialty firm unless individual licensee owns at least 51% and is sole resident licensee.
| Fee | Amount | Period (years) |
|---|---|---|
| Residential firm Certificate of Authorization | $100 OFFICIAL FEE Source — llr.sc.gov | — |
| Residential firm Certificate of Authorization renewal | $100 OFFICIAL FEE Source — llr.sc.gov | 1 |
Exam: Provider: PSI · Source
Experience: Commercial primary qualifying parties need at least two years of relevant work within the past five years, except waiver or reciprocity applicants. Residential HVAC applicants document one year of experience.
Bond: Applies To: Commercial mechanical contractor: financial statement or surety bond by group ($7,000, $15,000, $30,000, $60,000, or $300,000); no universal amount. · Source
$10,000 OFFICIAL FEE Source — llr.sc.gov
$15,000 OFFICIAL FEE Source — www.scstatehouse.gov
Renewal and CE: Renewal period: 2 years · Source
Local note: Cities and counties may require additional business licensing and permits; residential specialty contractors must comply with local ordinances.
Data notes
Commercial HVAC contracting is subject to a $10,000 project threshold. Commercial contractors may use a bond instead of financial qualification.
Verified: 2026-09-24
Prepare the qualifier’s application
The RBH application documents one year of HVAC experience. For the mechanical route, a primary qualifying party ordinarily shows at least two years of relevant work during the past five years; waiver or reciprocity applicants may use different provisions. Each requested subclassification calls for its own qualified person. The technical examination and South Carolina Business Management and Law examination apply to the mechanical qualifier unless a technical waiver applies. The commission’s exam information points residential applicants to PSI. The source record does not confirm PSI pricing or a separate qualifier charge, so verify those before finalizing the opening budget.
Plan financial proof and renewal dates
A mechanical contractor provides a financial statement or a group-based surety bond. The board’s licensure guidance should be used to identify the relevant group rather than assuming one amount fits every HVAC business. On the residential route, specialty HVAC projects for an individual property owner exceeding $5,000 carry a $10,000 bond condition. A required firm Certificate of Authorization carries a $15,000 bond under the residential law. These conditions can affect when a new firm is ready to contract.
The RBH license renews every two years for $220, and a required firm certificate renews each year for $100. Mechanical contractor renewal is $135 every two years when timely. Put all applicable credentials on one calendar, with separate owners for the entity and qualifier records. The research did not confirm a specific continuing education requirement or statewide insurance minimum. Check current board instructions rather than filling those gaps with assumptions.
Finish the local and cost checks
South Carolina cities and counties can require business licensing and HVAC permits. Before quoting an installation or replacement, confirm who obtains the permit and which inspections the local office expects. State licensure does not supply a universal permit fee or process for every address.
Use the HVAC startup cost guide to budget the actual classifications, bonds, and operating equipment. The license guide and HVAC hub provide broader context. For neighboring markets, read North Carolina and Georgia; each state has its own licensing path.
Estimated startup cost: $8,300–$10,900 Estimated startup cost: $8,300–$10,900. Break-even at about 7 jobs per month. Monthly overhead: $1,550–$1,700 · Annual operating: $18,400–$20,400 · Break-even: 7 jobs/month Vehicle operating per month: $760 CALCULATED Phone and admin per month: $150 YOUR INPUT Startup total is the sum of available first-year cost lines. Monthly overhead includes insurance, software, marketing, vehicle operating, phone and admin, and payroll. Break-even jobs = monthly overhead ÷ (average ticket × gross margin).Startup Cost Calculator
Licensing & exam fees $350–$420 OFFICIALLicense details Business formation (state filing) $110 OFFICIAL Insurance (first year) $910–$1,200 MARKET ESTIMATEGeneral liability Vehicle acquisition $0 YOUR INPUTYour existing vehicle; acquisition cost $0 Vehicle price sources
Tools & equipment $250 MARKET ESTIMATE Starter kit items
Software (first year) $590–$2,250 MARKET ESTIMATEPublished monthly list price × 12 Software price sources
Launch marketing $1,500 YOUR INPUTYour input — default: 3 months × $500 Payroll reserve $0 CALCULATEDBLS median wage × 173 hours/month × employees × employer taxes and ECEC benefits × working-capital months Working capital $4,600–$5,100 CALCULATEDMonthly overhead excluding payroll (shown separately) × working-capital months Permits & compliance $0 YOUR INPUTYour input — default $0; local requirements may apply Show formula
Official sources
- llr.sc.gov — Initial general or mechanical contractor entity license
- llr.sc.gov — RBE application
- api.bls.gov — BLS OEWS Heating, Air Conditioning, and Refrigeration Mechanics and Installers
- businessfilings.sc.gov — South Carolina LLC filing fee
Market sources
- trutechtools.com — Fieldpiece SM482V 4-port digital manifold (replaces SM480V)
- www.supplyhouse.com — Fieldpiece SRS1 refrigerant scale
- trutechtools.com — Fieldpiece VP67 6 CFM vacuum pump
- www.fluke.com — Fluke 117 electrician's multimeter
- www.homedepot.com — 3M SecureFit SF400G-LV-4-PS safety glasses
- trutechtools.com — Fieldpiece VP87 8 CFM vacuum pump
- trutechtools.com — Appion G5Twin recovery machine
- trutechtools.com — Fieldpiece MR45 digital recovery machine
- www.supplyhouse.com — Fieldpiece DR82 infrared refrigerant leak detector
- www.insureon.com — Insureon
- www.nextinsurance.com — NEXT
- www.getjobber.com — Jobber
- www.housecallpro.com — Housecall Pro
- quickbooks.intuit.com — QuickBooks Online
- www.ramtrucks.com — 2026 Ram ProMaster cargo van (base)
- www.cars.com — 2026 Ford F-150 XL (base)
- www.cars.com — 2026 Ford Transit-150 cargo van (base, T-150 130in low roof RWD)
- www.coxautoinc.com — Used vehicle average listing price (all segments, not cargo-van specific)
Frequently asked questions
Does one mechanical HVAC subclassification cover every service?
No. Select the applicable Air Conditioning, Heating, Packaged Equipment, or Refrigeration subclassification and a qualifying party for each requested one.
When does an HVAC firm need a Certificate of Authorization?
A residential specialty firm needs it unless its RBH holder owns at least 51% and is its sole resident licensee.
What experience does a mechanical qualifier need?
The ordinary path calls for two years of relevant work within the past five years, subject to waiver or reciprocity provisions.
Are local HVAC permits part of the state license?
No. Check the city or county serving the job address for permits and business licensing.
Last updated: September 24, 2026