HVAC contractor cost in South Carolina

Expect $100 RBH application, ~$156 PSI exam fees (Business & Law + Residential HVAC), a $10,000 bond if jobs are $5,000+, and a $220 license/renewal under the Residential Builders Commission; or $350 initial and $135 biennial renewal for a Mechanical Contractor (HVAC) under the Contractors Licensing Board. Source Source Source Source.

Requirements last verified: 2026-10-09

Requirement	Details
Licensing agency	Residential HVAC (installer/repairer, RBH): South Carolina Residential Builders Commission (RBC). Commercial/Mechanical HVAC: South Carolina Contractors Licensing Board (CLB). RBC CLB.
State application fee	RBH: $100 application. RBC fee table. Mechanical Contractor: $350 initial license. CLB fees / Doc #165.
Exam(s) and exam fees	RBH: two PSI exams — Business Management & Law ($78) and Residential HVAC ($78) = $156 total, paid to PSI. PSI bulletin and RBC confirms two-part testing. RBC exam page. Mechanical: Business & Law for Commercial Contractors + AC technical exam via PSI (fees set by PSI). CLB licensure.
Experience	RBH: Minimum 1 year residential HVAC experience in the past 5 years, documented in application. RBC RBH application RBC online HVAC. Mechanical: At least 2 years relevant experience within last 5 years for requested classification. CLB guidance.
Minimum age	No explicit minimum age published; applicants must be legally present and qualify by experience. See RBC application materials. RBC instructions.
Bond/insurance	RBH: Surety bond of $10,000 required if any job is $5,000 or more (submit original bond with license fee). RBC instructions. Mechanical: Provide financial statement meeting license group net worth/working capital or a surety bond in the same amount per §40‑11‑262. SC Code §40‑11‑262 CLB.
License/renewal fees & cycle	RBH: $220 license fee; renew $220 by June 30 every odd year. RBC fees RBC renewal timing. Mechanical: Renew $135; Mechanical Contractor licenses expire 10/31 of odd-numbered years. CLB fees & cycles.
Processing time	RBC indicates 7–10 business days before checking application status; PSI exams scheduled on approval. RBC instructions RBC exam page.

How to get a South Carolina HVAC contractor license (cost-focused)

1. Confirm the correct license path. Choose Residential HVAC (RBH) for 1–3 family dwellings up to 3 stories via RBC, or Mechanical Contractor (AC subclassification) for commercial HVAC via CLB. RBC CLB.
2. Budget state and PSI fees. Plan for RBH: $100 application, ~$156 PSI exams, $220 license, and a $10,000 bond if projects are $5,000+. Mechanical: $350 initial, $135 renewal, PSI exam fees, and either financial statement or surety bond per §40‑11‑262. RBC fees PSI fees CLB fees.
3. Apply to the right board. Submit the RBH application package to RBC or Doc #165 to CLB; include IDs and experience affidavits. RBH application CLB Doc #165.
4. Schedule and pass exams. After approval, register with PSI for the Business & Law and HVAC trade exams; bring the PASS sheets back to the board. RBC exam steps PSI bulletin CLB exam steps.
5. Post-exam licensing costs. RBH: submit $220 license fee plus original $10,000 bond (if any job ≥ $5,000). Mechanical: submit $350 license fee and meet financial/bon ding requirements. RBH post‑exam CLB fee schedule.
6. Renew on time. RBH renews June 30 in odd years ($220). Mechanical renews 10/31 in odd years ($135), with late-fee tiers. RBC renewal CLB renewal.

South Carolina HVAC contractor license cost: residential versus mechanical

For most small firms focused on houses, the Residential HVAC path keeps upfront costs contained: $100 application, ~$156 PSI exams, $220 license, and a $10,000 surety bond only when any project meets the $5,000 threshold. RBC fees PSI fees Bond rule.

Companies bidding commercial HVAC typically need the Mechanical Contractor license; budget $350 to start, $135 every renewal cycle, PSI exam costs, and either a qualifying financial statement or a surety bond equal to the group’s net‑worth requirement per statute. CLB fees §40‑11‑262.

What else affects your HVAC license cost in South Carolina?

Exam retakes, study books, and reciprocity

PSI sets per‑attempt fees (RBH HVAC $78; Business & Law $78). Study references are candidate‑purchased. RBC notes technical exam waivers for Residential HVAC from Alabama, North Carolina, and Mississippi (technical portion only), which can reduce exam spend. PSI fees RBC exam waiver info.

Surety bond strategy

Residential HVAC licensees must file a $10,000 bond when any job is $5,000 or more. Mechanical contractors may post a surety bond in the same amount as the required net worth/working capital for their license group in lieu of financials. Premiums vary by credit. RBC bond CLB bond option.

Timelines and cash flow

RBC suggests 7–10 business days before checking application status; PSI scheduling then controls exam timing. Plan your spend across application, exams, bond, and license issuance to avoid delays or late fees on renewal cycles. RBC timing RBC renewal cycle CLB renewal cycle.

Budgeting for licenses across trades? Our deep dives on South Carolina’s investigative licensing landscape can help you think through state fees, exams, and bonds—for example, compare the South Carolina private investigator license cost or see the step‑by‑step path in our guide to getting a South Carolina PI license.

Frequently Asked Questions

What is the total cost to get an RBH Residential HVAC license?

Plan for $100 to apply, ~$156 in PSI exam fees (Business & Law + HVAC), $220 for the license, plus the cost of a $10,000 surety bond if any job you take is $5,000 or more. Study materials and local permits add to the budget. RBC PSI Bond rule.

How much does the Mechanical Contractor (HVAC) route cost?

Expect $350 for initial licensure, $135 per renewal cycle (mechanical licenses expire 10/31 of odd years), PSI exam fees for Business & Law and the AC technical exam, and costs to meet financial‑statement requirements or to secure a surety bond equal to your license group’s net‑worth amount. CLB fees §40‑11‑262.

Do I have to take two exams for Residential HVAC?

Yes. RBC requires a two‑part exam: Business Management & Law and the Residential HVAC trade test, both administered by PSI. Current PSI fees are $78 per part. After passing, submit your $220 license fee (and bond, if applicable). RBC exam steps PSI fees RBC fees.

When do South Carolina HVAC licenses renew?

Residential HVAC (RBH) renews June 30 in odd‑numbered years for $220. Mechanical Contractor (HVAC) licenses expire October 31 of odd‑numbered years; renewal is $135, with escalating late fees after the deadline. RBC renewal cycle CLB renewal cycle.

What experience is required before applying?

RBH applicants must document at least one year of residential HVAC experience within the last five years. Mechanical Contractor applicants generally need a minimum two years’ relevant experience in the last five years for the requested classification. RBC experience CLB experience.

Want a tailored, line‑item budget to become licensed faster? License Navigator can map every South Carolina HVAC cost and deadline to your business plan—book a free scoping call today.