South Carolina Contractor Licenses: Updated Requirements Guide

South Carolina regulates contractor licensing at the state level through boards housed within the Department of Labor, Licensing and Regulation (LLR). Commercial general and mechanical contracting are overseen by the South Carolina Contractor’s Licensing Board, while residential builder and residential specialty trades such as electrical, plumbing, and HVAC are overseen by the South Carolina Residential Builders Commission. Most examinations are administered by PSI.

This guide explains how the major trades are licensed in South Carolina, the exams you can expect, and key fees, renewal cycles, and documentation. We highlight several representative licenses and authorities for South Carolina below; this guide is updated periodically as additional details are curated or requested by readers.

If you work in multiple scopes (for example, residential HVAC and commercial mechanical), you may need credentials from both the Residential Builders Commission and the Contractor’s Licensing Board. Always review the project type, value threshold, and classification to determine which state credential is required before you bid or pull permits.

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Overview of South Carolina Contractor Licensing

Contractor licensing in South Carolina is administered through LLR and its boards and commissions. The South Carolina Contractor’s Licensing Board regulates general contractors, mechanical contractors, construction managers, burglar alarm contractors, fire alarm contractors, and fire sprinkler contractors, and administers the state’s boiler safety program. For commercial contracting, state law in Title 40, Chapter 11 establishes licensing thresholds and classifications, with licensure generally required for regulated work over specific dollar values.

The South Carolina Residential Builders Commission regulates residential builders and residential specialty contractors (including residential electrical, plumbing, and HVAC) as well as home inspectors. Trades licensed by the Commission typically require a technical exam for the trade and a separate Business Management and Law exam; PSI administers these exams. Residential specialty licenses commonly require at least one year of supervised experience and, for jobs exceeding specified values, a surety bond.

Most state contractor examinations for both boards are scheduled with PSI. License cycles and renewal dates differ by board and classification, with biennial renewals common and specific dates tied to even or odd-numbered years for some credentials. Verifying the correct authority and classification for your scope of work is the critical first step before you apply.

Primary Licensing Authority

Multiple Authorities – See research notes

Browse all South Carolina contractor license practice tests →

Electrician Licenses in South Carolina

South Carolina regulates electrical work with 1 license type.

Residential Electrician License (RBE)

Regulatory authority: South Carolina Residential Builders Commission — https://www.llr.sc.gov/res/

Scope and When It’s Needed

The RBE authorizes residential electrical work within the scope recognized by the Residential Builders Commission. Projects are typically in the residential domain; confirm whether your planned work falls under residential specialty or requires another classification if you engage in commercial projects.

Eligibility

  • Experience: At least one year of Commission-approved experience under the supervision of a licensed individual in the residential electrical trade.

Examinations

  • Provider: PSI
  • Required exams: SC Residential Electrician Technical Examination and the Business Management and Law Examination
  • Format: Computer-based, multiple-choice at PSI test centers
  • Passing scores: Business Management and Law requires a scale score of 68; the technical exam passing score is set by the Commission
  • Allowed materials: As specified in PSI’s South Carolina residential electrician candidate information
  • Retake/lapse: If a residential electrical license has been lapsed more than three years, the applicant must apply as new and re-take required examinations

Fees

  • Application: $135
  • Initial license: $220
  • Renewal: $220
  • Late penalty: $50
  • Reinstatement: $480

Insurance and Bonding

  • Surety bond: Required if residential electrical work performed under the license will exceed $5,000

Renewal

  • Frequency: Biennial
  • Cycle: Residential Electrical Licenses renew June 30 of every odd-numbered year

How to Apply

  1. Confirm you meet experience requirements and prepare documentation of supervised residential electrical experience.
  2. Submit the RBE application and fee to the Residential Builders Commission.
  3. Allow processing time (for residential electrical applications, plan for approximately 7–10 business days before checking status).
  4. Upon receiving your Examination Eligibility Letter, schedule the technical and Business Management and Law exams with PSI.
  5. After passing, submit exam results, the initial license fee, and surety bond documentation if any single project will exceed $5,000.

Official source: Residential Electrician License (RBE)

Plumbing Licenses in South Carolina

South Carolina regulates plumbing work with 2 license types.

Residential Specialty Plumbing License (RBP)

Regulatory authority: South Carolina Residential Builders Commission — https://www.llr.sc.gov/res/

Scope and When It’s Needed

Authorizes residential plumbing installation and repair within the Commission’s residential specialty scope. Confirm whether your projects fall within residential specialty or require a residential plumbing contractor credential based on responsibilities and contracting arrangements.

Eligibility

  • Experience: At least one year of Commission-approved experience under a licensee in the plumbing trade

Examinations

  • Provider: PSI
  • Required exams: Residential Plumbing Technical Examination and Business Management and Law
  • Technical exam length: 65 questions
  • Passing scores: Technical exam 67.7%; Business Management and Law requires a scale score of 68
  • Format and materials: Computer-based; references allowed as defined by PSI for South Carolina residential plumbing

Fees

  • Application: $135
  • Initial license: $220
  • Renewal: $220
  • Late penalty: $50
  • Reinstatement: $480

Insurance and Bonding

  • Surety bond: Required if residential plumbing work performed under the license will exceed $5,000

Renewal

  • Frequency: Biennial, with renewals and late fees per the Commission fee schedule

How to Apply

  1. Identify the RBP classification and assemble proof of supervised plumbing experience (minimum one year).
  2. Submit the RBP application and fee to the Residential Builders Commission.
  3. After receiving exam eligibility, schedule and pass the PSI technical exam and the Business Management and Law exam.
  4. Submit passing scores, pay the initial license fee, and provide surety bond documentation if applicable for projects over $5,000.

Official source: Residential Builders Commission Licensure

Residential Plumbing Contractor License

Regulatory authority: South Carolina Residential Builders Commission — https://www.llr.sc.gov/res/

Scope and When It’s Needed

Authorizes contracting to perform residential plumbing work within the Commission’s scope. This credential is suitable when you are the contracting entity responsible for residential plumbing projects rather than a specialty subcontractor.

Eligibility

  • Experience: At least one year of Commission-approved experience under a licensee in the plumbing trade (for licensure by examination)

Examinations

  • Provider: PSI
  • Required exams: Residential Plumbing Contractor Technical Examination and Business Management and Law
  • Passing scores: Technical exam 67.7%; Business Management and Law requires a scale score of 68
  • Notes: Exam waiver agreements for the technical portion exist with certain states; otherwise, applicants must pass both examinations

Fees

  • Application: $135
  • Initial license: $220
  • Renewal: $220
  • Late penalty: $50
  • Reinstatement: $480

Insurance and Bonding

  • Surety bond: Required if residential plumbing contractor work will exceed $5,000

Renewal

  • Frequency: Biennial; renewal dates and late fees per Commission rules

How to Apply

  1. Confirm your classification and eligibility, including supervised trade experience.
  2. Apply to the Residential Builders Commission and obtain exam eligibility.
  3. Schedule and pass required PSI examinations.
  4. Submit scores, pay license fees, and file surety bond documentation if any project will exceed $5,000.

Official source: Residential Builders Commission Licensure

HVAC Licenses in South Carolina

South Carolina regulates HVAC contractors with 3 license types.

Residential HVAC Contractor License

Regulatory authority: South Carolina Residential Builders Commission — https://www.llr.sc.gov/res/

Scope and When It’s Needed

Authorizes contracting to install and service residential HVAC systems within the Commission’s residential scope. Select this credential when you serve as the contracting entity for residential HVAC projects.

Eligibility

  • Experience: At least one year of Commission-approved experience under a licensee in the HVAC trade (for licensure by examination)

Examinations

  • Provider: PSI
  • Required exams: Residential HVAC Technical Examination and Business Management and Law
  • Technical exam length: 80 questions
  • Passing scores: Technical exam 65%; Business Management and Law requires a scale score of 68
  • Format and materials: Computer-based; references and allowed materials per PSI candidate handbook

Fees

  • Application: $135
  • Initial license: $220
  • Renewal: $220
  • Late penalty: $50
  • Reinstatement: $480

Insurance and Bonding

  • Surety bond: Required if residential HVAC contractor work will exceed $5,000

Renewal

  • Frequency: Biennial; renewal timing per Commission schedule

How to Apply

  1. Select the residential HVAC contractor classification and gather proof of supervised experience.
  2. Apply to the Residential Builders Commission and await exam eligibility.
  3. Pass the PSI technical exam and the Business Management and Law exam.
  4. Provide passing scores, pay license fees, and submit bond documentation if any project will exceed $5,000.

Official source: Residential Builders Commission Licensure

Residential Specialty Contractor HVAC License

Regulatory authority: South Carolina Residential Builders Commission — https://www.llr.sc.gov/res/

Scope and When It’s Needed

Authorizes performance of residential HVAC work as a residential specialty contractor. Choose this credential when your work is within the residential specialty scope rather than contracting the entire project.

Eligibility

  • Experience: At least one year of Commission-approved experience under a licensee in the HVAC trade

Examinations

  • Provider: PSI
  • Required exams: Residential HVAC Technical Examination and Business Management and Law
  • Technical exam length: 80 questions
  • Passing scores: Technical exam 65%; Business Management and Law requires a scale score of 68
  • Format and materials: Computer-based; allowed materials per PSI

Fees

  • Application: $135
  • Initial license: $220
  • Renewal: $220
  • Late penalty: $50
  • Reinstatement: $480

Insurance and Bonding

  • Surety bond: Required if specialty HVAC work will exceed $5,000

Renewal

  • Frequency: Biennial; renewal dates and fees per Commission schedule

How to Apply

  1. Confirm your scope as a residential specialty contractor and verify one year of supervised HVAC experience.
  2. Submit your application and fee to the Residential Builders Commission.
  3. Obtain exam eligibility and pass PSI’s technical HVAC exam and Business Management and Law exam.
  4. Finalize licensure by submitting scores, the initial license fee, and any required surety bond documentation.

Official source: Residential Builders Commission Licensure

Mechanical Contractor License

Regulatory authority: South Carolina Contractor’s Licensing Board — https://www.llr.sc.gov/clb/

Scope and When It’s Needed

Required for regulated commercial mechanical contracting in approved classifications. Licensing under Title 40, Chapter 11 applies to commercial work over statutory thresholds; ensure you select the correct mechanical classifications when applying.

Eligibility

  • Primary Qualifying Party (PQP): Applicants must designate a PQP and qualify by technical examination, exam waiver/reciprocity, or approved certification for the mechanical classifications sought

Examinations

  • Provider: PSI
  • Required exams: Mechanical Contractor technical examination(s) in selected classifications and Business Management and Law
  • Passing scores: Established by the Board for each technical classification and the Business Management and Law exam

Fees

  • Initial license: $350
  • Renewal: $135
  • Reinstatement: $350

Insurance and Financial Responsibility

  • Business authority and financials: Proof of ability to conduct business in South Carolina and other financial responsibility requirements per Board rules

Renewal

  • Frequency: Biennial
  • Cycle: Mechanical Contractor licenses expire October 31 in odd-numbered years

How to Apply

  1. Determine the mechanical classifications you need and identify your PQP.
  2. Complete required PSI exams (technical and Business Management and Law) or qualify via Board-recognized alternatives.
  3. Submit application materials to the Contractor’s Licensing Board with documentation of business authority and any required financial responsibility items.
  4. Pay the initial license fee to obtain licensure.

Contact the South Carolina Contractor’s Licensing Board to confirm application fees, examination fee arrangements, insurance minimums, and any continuing education or classification-specific renewal details before applying.

Official sources: CLB Licensure Information | PSI Exam Information

General Contractor Licenses in South Carolina

South Carolina general contractor licensing includes 1 type.

General Contractor License

Regulatory authority: South Carolina Contractor’s Licensing Board — https://www.llr.sc.gov/clb/

Scope and When It’s Needed

Required for regulated commercial general contracting work within established classifications. Under South Carolina Code § 40-11, licensure is required for regulated contracting over statutory thresholds; select classifications that match your business activities.

Eligibility

  • Primary Qualifying Party (PQP): Applicants designate a PQP and qualify by technical examination, exam waiver/reciprocity, or approved certification for the classifications sought

Examinations

  • Provider: PSI
  • Required exams: General Contractor technical exam(s) in the chosen classification(s) and Business Management and Law
  • Passing scores: Established by the Board

Fees

  • Initial license: $350
  • Renewal: $135
  • Reinstatement: $350

Insurance and Business Authority

  • Business authority: Verification to conduct business in South Carolina from the Secretary of State and other Board-defined financial responsibility items

Renewal

  • Frequency: Biennial
  • Cycle: General Contractor licenses expire October 31 in even-numbered years

How to Apply

  1. Identify the general contractor classification(s) needed and designate a PQP.
  2. Complete PSI’s required technical exam(s) and Business Management and Law exam, or qualify via Board-approved alternatives.
  3. Submit application materials to the Contractor’s Licensing Board with evidence of authority to do business in South Carolina and any required financial documentation.
  4. Pay the initial license fee to activate your license.

Contact the South Carolina Contractor’s Licensing Board to confirm application fees, examination fee arrangements, insurance minimums, and any classification-specific renewal requirements before applying.

Official sources: CLB General Information | CLB Fee Schedule

Roofing Licenses in South Carolina

Roofing scopes in South Carolina are often authorized under broader contractor classifications rather than a stand-alone roofing license. For residential projects, verify whether your work is covered under a Residential Builders Commission credential (e.g., residential builder or residential specialty scope). For commercial projects over the statutory threshold, confirm whether a general contractor classification through the Contractor’s Licensing Board is required under South Carolina Code § 40-11.

Before bidding or contracting, review your project type, value, and scope, then confirm the correct board, classification, and any bonding or financial responsibility requirements with the appropriate state authority.

Specialty Trade Licenses in South Carolina

South Carolina regulates specialty trades with 4 license types.

Construction Manager Registration

Regulatory authority: South Carolina Contractor’s Licensing Board — https://www.llr.sc.gov/clb/

Overview

Construction Managers register with the Contractor’s Licensing Board. This is a state-level registration rather than a technical trade license.

Contact the South Carolina Contractor’s Licensing Board to confirm fees, insurance minimums, experience requirements, and renewal details before applying.

Official source: Construction Manager Registration

Burglar Alarm Contractor License

Regulatory authority: South Carolina Contractor’s Licensing Board — https://www.llr.sc.gov/clb/

Scope and Exams

Licensure authorizes contracting to install and maintain burglar alarm systems. An examination is required; verify format, provider details, and passing criteria directly with the Board.

  • Exam topics: Burglar alarm system installation and maintenance; applicable South Carolina safety and licensing regulations

Insurance

  • Liability/bonding: Required as defined by Board regulation

Contact the South Carolina Contractor’s Licensing Board to confirm fees, insurance minimums, experience requirements, and renewal details before applying.

Official source: Contractor’s Licensing Board

Fire Alarm Contractor License

Regulatory authority: South Carolina Contractor’s Licensing Board — https://www.llr.sc.gov/clb/

Scope and Exams

Licensure authorizes contracting to install and maintain fire alarm systems. An examination is required; verify format, provider details, and passing criteria directly with the Board.

  • Exam topics: Fire alarm system installation and maintenance; South Carolina fire safety and licensing regulations

Insurance

  • Liability/bonding: Required as defined by Board regulation

Contact the South Carolina Contractor’s Licensing Board to confirm fees, insurance minimums, experience requirements, and renewal details before applying.

Official source: Contractor’s Licensing Board

Fire Sprinkler Contractor License

Regulatory authority: South Carolina Contractor’s Licensing Board — https://www.llr.sc.gov/clb/

Scope and Exams

Licensure authorizes contracting to install and maintain fire sprinkler systems. An examination is required; verify format, provider details, and passing criteria directly with the Board.

  • Exam topics: Fire sprinkler system installation and maintenance; South Carolina fire protection and licensing regulations

Insurance

  • Liability/bonding: Required as defined by Board regulation

Contact the South Carolina Contractor’s Licensing Board to confirm fees, insurance minimums, experience requirements, and renewal details before applying.

Official source: Contractor’s Licensing Board

Application Process

  1. Identify the appropriate licensing authority: the South Carolina Contractor’s Licensing Board for commercial general/mechanical and certain specialty contractors; the South Carolina Residential Builders Commission for residential builders and residential specialty contractors.
  2. Determine the specific license classification needed (e.g., General Contractor, Mechanical Contractor, Residential Electrician RBE, Residential HVAC Contractor, Residential Specialty Plumbing RBP).
  3. Complete the required license application and assemble documentation, including verification of at least one year of Commission-approved supervised experience for residential specialty licenses.
  4. Submit the application and fee to the appropriate authority and allow processing time (for Residential Electrician applications, plan for approximately 7–10 business days before checking status).
  5. After approval, use your Examination Eligibility Letter to schedule PSI examinations for the technical trade and Business Management and Law, as applicable.
  6. Take and pass the PSI-administered exams; exam fees are paid directly to PSI.
  7. Submit exam results, pay the initial license fee, and provide any required surety bond documentation (residential specialty licenses where work exceeds $5,000).
  8. Receive your license and maintain it by renewing on time, tracking renewal dates specific to your board and classification, and complying with any ongoing requirements.

Timeline: Expect several weeks from application submission to license issuance, including approximately 7–10 business days for application processing before exam eligibility and additional time to schedule and complete PSI examinations.

Reciprocity

South Carolina has reciprocity with: North Carolina, Mississippi.

Requirements: Exam Waiver Agreements exist for the technical portion of the Residential Plumbing examination with North Carolina and Mississippi. Applicants must hold a current license in the eligible state obtained by examination for at least one year and be in good standing; South Carolina application and experience requirements still apply, and the South Carolina Business Management and Law exam must be passed.

Limitations: Waivers are limited to the technical portion of the Residential Plumbing exam. Grandfathered licenses from other states are not eligible, and reciprocity does not grant licensure without meeting South Carolina’s requirements.

Frequently Asked Questions

How long does it take to get a contractor license in South Carolina?

Plan for several weeks overall. As a reference point, Residential Electrician (RBE) applications typically allow 7–10 business days before checking status for examination eligibility, followed by time to schedule and pass PSI exams and complete issuance steps.

Can I transfer my license from another state to South Carolina?

For Residential Plumbing, South Carolina offers Exam Waiver Agreements for the technical portion with North Carolina and Mississippi. You must hold a current license obtained by examination for at least one year, be in good standing, meet South Carolina’s application and experience requirements, and pass the South Carolina Business Management and Law exam.

What happens if I fail the exam?

Retake policies follow the Commission/Board and PSI procedures for your license type. For Residential Electrician, if a license has lapsed for more than three years, you must apply as a new applicant and re-take required examinations.

Do I need insurance?

Yes. Requirements vary by credential. Residential specialty licenses commonly require a surety bond when work performed under the license will exceed $5,000, and commercial licenses require proof of authority to conduct business and financial responsibility per Board rules.

How do I renew my license?

Renewal is generally biennial but dates vary by credential. For example, Residential Electrical licenses renew June 30 of odd-numbered years; Mechanical Contractor licenses expire October 31 of odd-numbered years; General Contractor licenses expire October 31 of even-numbered years.

Which board handles residential versus commercial work?

The Residential Builders Commission regulates residential builders and residential specialty trades (electrical, plumbing, HVAC). The Contractor’s Licensing Board regulates commercial general and mechanical contractors and certain specialty contractors such as burglar alarm, fire alarm, and fire sprinkler.

Where can I find practice tests for South Carolina exams?

We offer comprehensive, downloadable PDF study guides for South Carolina contractor exams. Materials typically include 1,500–2,500 code-focused questions with complete answer keys and reference locators pointing to exact code sections. Study offline at your own pace; no time or use limits. Browse South Carolina contractor practice tests.

South Carolina · Practice tests

South Carolina contractor license practice tests

The South Carolina practice tests we publish today: comprehensive PDF guides, typically 1,500 to 2,500 questions each, with full answer keys and reference locators to the exact code sections. We add new tests regularly, so if your license isn’t listed here, contact us and we’ll build it.

Browse all South Carolina tests →

Related Official Resources

Official Sources for Further Details:

  1. South Carolina Contractor’s Licensing Board
    https://www.llr.sc.gov/clb/
    Official Board Site | Accessed: 2026-10-04
  2. South Carolina Contractor’s Licensing Board – General Information
    https://www.llr.sc.gov/clb/clb_general.aspx
    Official Board Site | Accessed: 2026-10-04
  3. South Carolina Contractor’s Licensing Board – Licensure Information
    https://www.llr.sc.gov/clb/clb_licensure.aspx
    Licensure Requirements | Accessed: 2026-10-04
  4. South Carolina Contractor’s Licensing Board – Fee Schedule
    https://www.llr.sc.gov/clb/clb_fees.aspx
    Fee Schedule | Accessed: 2026-10-04
  5. South Carolina Contractor’s Licensing Board – PSI Exam Information
    https://www.llr.sc.gov/clb/PSI%20Exam%20Info.aspx
    Exam Provider | Accessed: 2026-10-04
  6. South Carolina Residential Builders Commission – Examination
    https://www.llr.sc.gov/res/exam.aspx
    Examination Information | Accessed: 2026-10-04
  7. South Carolina Residential Builders Commission – Residential Electrician License (RBE)
    https://www.llr.sc.gov/res/reselectric.aspx
    License Details | Accessed: 2026-10-04
  8. South Carolina Residential Builders Commission – Licensure
    https://www.llr.sc.gov/res/licensure.aspx
    Licensure Requirements | Accessed: 2026-10-04
  9. South Carolina Residential Builders Commission – Residential Electrical Specialty Online Application Instructions
    https://www.llr.sc.gov/res/Online/ElectricianInstructions.aspx
    Application Instructions | Accessed: 2026-10-04
  10. South Carolina Code § 40-11 – Contractors Licensing
    https://www.scstatehouse.gov/code/t40c011.php
    State Statute | Accessed: 2026-10-04

Important Disclaimer

Information Currency: This guide reflects licensing information as available in 2026. Licensing requirements can change; always verify current rules directly with the applicable South Carolina board or commission.

Official Source: For current information, contact Multiple Authorities – See research notes:

No Legal Advice: This guide provides general information and is not a substitute for professional or legal advice. Consult the licensing authority or a qualified professional for guidance on your specific situation.