Find the Right Board, License and Group Limit
South Carolina uses separate official systems for commercial contractors and residential builders or trades. Searching the wrong board can make a properly licensed contractor appear unlicensed.
This guide shows homeowners and applicants how to choose the correct lookup, read classifications and monetary groups, prepare a commercial application, renew on time and file a complaint the Board can actually investigate.
Quick Answer
South Carolina’s Contractor’s Licensing Board regulates commercial general and mechanical contractors and related license types. Commercial general or mechanical licensing is generally required for regulated work when the total construction cost exceeds $10,000.
Commercial Board or Residential Commission?
The first decision is not “Is the contractor licensed?” It is “Which South Carolina licensing system should contain the record?”
Use the Contractor’s Licensing Board
Start here for commercial general contractors, commercial mechanical contractors, construction managers, burglar or fire alarm businesses and fire-sprinkler contractors.
- Commercial building and renovation.
- Commercial electrical, plumbing and HVAC work.
- Highway, public utilities and specialty commercial classifications.
- Commercial work over the applicable $10,000 threshold.
Use the Residential Builders Commission
Start here for residential builders and the residential electrical, plumbing, HVAC, specialty-contractor and home-inspector systems.
- New home construction.
- Residential builder licensing.
- Residential specialty registrations.
- Residential trade licenses and certificates.
Tool 1: Correct Board Finder
Select the work type. The result identifies the best official starting point; local permits and additional credentials may still apply.
South Carolina Contractor License Lookup
Search the live SC LLR record instead of relying on a printed card, proposal statement or old screenshot. Status, classification, qualifying party and group limit can change.
Commercial contractors
Search by contractor name or license number. When using the license-number field, enter numbers only.
Residential builders and trades
Use the separate residential database. Enter only a few letters when the exact licensed name is uncertain.
Alarm and fire sprinkler
Use the specialized burglar alarm, fire alarm and fire-sprinkler lookup. Enter numbers only when searching by license number.
Best search order
- Copy the exact legal company name from the proposal.
- Search the company name in the correct board database.
- Search the license number using numbers only.
- Try a shorter version of the company name if no record appears.
- Check the other official board when the project type is unclear.
- Call LLR before accepting a zero-result explanation from the contractor.
How to Read the License Result Before Hiring
“Active” is not the final answer. The record must belong to the same legal business, cover the proposed classification and support the complete project value.
| Result item | What it means | What to compare | Pause when |
|---|---|---|---|
| Status | Shows whether the credential is active, lapsed, suspended or restricted. | Check before signing, permit issuance and project start. | The contractor says an inactive license is “almost renewed.” |
| Legal license holder | Identifies the entity permitted to contract and advertise under the license. | Match the contract, invoice and requested payment name. | Payment is requested to an unrelated person or entity. |
| Classification | Identifies the licensed trade or construction scope. | Match building, roofing, highway, electrical, plumbing, HVAC or another listed class. | The proposed work is outside the listed classification. |
| Group limit | Controls the maximum bid and job value. | Use the total project amount, not only the deposit or one phase. | The complete job exceeds the approved group. |
| Qualifying party | The certified person responsible for directing or reviewing work in a classification. | Confirm that the qualifier remains connected to the license holder. | A contractor relies on another company’s qualifier or license. |
When Is a South Carolina Contractor License Required?
A general or mechanical contractor license is required for regulated commercial construction when the total construction cost exceeds $10,000.
Commercial job over $10,000
Begin with the Contractor’s Licensing Board and confirm both classification and group limit.
Residential work
Use the Residential Builders Commission rules rather than assuming the commercial threshold controls the project.
Below $10,000
Local business-license, permit, inspection and separate trade requirements can still apply.
General and Mechanical License Classifications
A contractor must have the correct classification as well as enough financial group capacity.
General contractor routes
- Limited Building Contractor.
- Unlimited General Contractor.
- Highway.
- Public Utilities.
- Roofing, concrete, glazing and swimming pools.
- Nonstructural renovation and wood framing.
Mechanical classifications
- Air conditioning and heating.
- Electrical and plumbing.
- Packaged equipment and refrigeration.
- Lightning protection.
- Pressure and process piping.
South Carolina Contractor License Group Limits
The group is based on financial documentation or the approved Board surety bond. Meeting the group limit does not authorize work outside the license classification.
General contractor groups
| Group | Maximum bid and job | Working capital | Net worth or equity | Bond option |
|---|---|---|---|---|
| 1 | $100,000 | $10,000 | $20,000 | $20,000 |
| 2 | $400,000 | $40,000 | $60,000 | $60,000 |
| 3 | $1,000,000 | $100,000 | $150,000 | $150,000 |
| 4 | $3,000,000 | $175,000 | $250,000 | $250,000 |
| 5 | Unlimited | $250,000 | $350,000 | $350,000 |
Mechanical contractor groups
| Group | Maximum bid and job | Working capital | Net worth or equity | Bond option |
|---|---|---|---|---|
| 1 | $35,000 | $3,500 | $7,000 | $7,000 |
| 2 | $100,000 | $10,000 | $15,000 | $15,000 |
| 3 | $200,000 | $20,000 | $30,000 | $30,000 |
| 4 | $400,000 | $40,000 | $60,000 | $60,000 |
| 5 | Unlimited | $200,000 | $300,000 | $300,000 |
Tool 2: Minimum Group Planner
Enter the complete anticipated contract value. This estimates the minimum monetary group only; it does not verify classification, financial approval or live license status.
How to Apply for a South Carolina Contractor License
The business becomes the license holder. A qualified individual serves as the Primary Qualifying Party for every requested classification or subclassification.
Choose the exact classification
Identify the commercial general, specialty or mechanical class that matches the work the business will advertise, bid and perform.
Designate the Primary Qualifying Party
Assign one PQP for every requested classification. Additional qualifying parties may also be added when needed.
Complete the exams before applying
The qualifying party generally completes the applicable PSI technical exam and the South Carolina Business Management and Law for Commercial Contractors exam before the business submits Doc. 165.
Document qualifying experience
Exam applicants generally provide at least two years of relevant experience completed during the previous five years for every requested classification.
Choose and support the financial group
Submit the financial statement or approved surety bond that supports the requested maximum bid and job amount.
Submit Doc. 165 and the $350 fee
Include Secretary of State verification when required, qualifying-party documents, exam evidence, financial proof and the nonrefundable $350 license fee. The form states that cash is not accepted.
PQP, Contractor Exams and Experience
The qualifying-party process should be completed before the company application is submitted.
Usually required
- South Carolina Business Management and Law exam.
- Applicable technical exam.
- Two years of recent qualifying experience.
- PQP or QP application and supporting documents.
Current no-technical-exam classifications
- Boring and Tunneling.
- Highway Incidental.
- Miscellaneous Metals.
- Railroad Lines.
- Masonry.
The Business Management and Law exam and experience evidence still apply.
Write stronger experience affidavits
Doc. 167 should identify project names, dates, classification-specific duties, hours, responsibilities and a person who can verify the work. “Managed construction” or “performed repairs” is usually too vague.
Reciprocity, Exam Waivers and NASCLA
An approved reciprocity route can waive a technical exam. It does not waive the South Carolina application, Business Management and Law exam, qualifying-party process or financial requirements.
- The out-of-state license must be active and in good standing.
- The license must have been obtained through the accepted examination.
- A grandfathered or previously waived license does not qualify for another waiver.
- The state and classification must appear on South Carolina’s approved waiver list.
- The original licensing board must complete the official verification.
- A license copy or personal exam-result copy is not accepted as the official waiver verification.
2026 mechanical certification update
As of January 1, 2026, Carolinas AGC is the South Carolina Mechanical Trades Certification Program provider. Certain qualifying MASC master electrician, master plumber and HARV certifications issued through the dates listed by LLR may continue to support the corresponding classification.
NASCLA
Accepted NASCLA examination transcripts may satisfy the applicable technical-exam component, but NASCLA does not issue the South Carolina license. Have NASCLA send the transcript directly to the Board.
Financial Statement or Surety Bond?
Applicants can qualify for a group by meeting the working-capital requirement, the net-worth requirement or by submitting the Board’s approved surety bond in the required amount.
| Application group | Initial license financial route | Practical preparation |
|---|---|---|
| Groups 1–2 | Owner-prepared financial statement with affidavit, or approved surety bond. | Use current figures and Doc. 172 when using the owner-prepared option. |
| Groups 3–4 | CPA-compiled GAAP financial statement, or approved surety bond. | Include required disclosures and the signed CPA cover letter. |
| Group 5 | CPA-audited balance sheet, or approved surety bond. | Confirm that the audit and balance-sheet date meet the current instructions. |
Financial document timing
The balance sheet must be dated no more than 12 months before the application date. Compiled, reviewed and audited statements must be prepared by a licensed CPA.
Surety bond checklist
- Use the correct commercial general or mechanical Board form.
- Submit the original bond.
- Include principal and surety signatures.
- Include the visible surety-company seal.
- Attach the Power of Attorney.
- Do not use DocuSign where the Board requires original signatures.
- Do not submit a Residential Builders Commission bond to the commercial Board.
Tool 3: Commercial Application Readiness Check
Select every item already prepared. The result identifies missing components and does not represent Board approval.
South Carolina General Contractor Renewal 2026
General contractor licenses expire October 31 in even-numbered years. The 2026 renewal period is scheduled to open in August 2026.
| Renewal timing | Total fee | Action |
|---|---|---|
| By October 31, 2026 | $135 | Renew before the regular deadline. |
| November 1–30, 2026 | $235 | Includes $100 late fee. |
| December 1–31, 2026 | $285 | Includes $150 late fee. |
| January 1–31, 2027 | $335 | Includes $200 late fee. |
Renewal financial evidence
Groups 1 and 2 may use the owner-prepared statement or approved bond. For renewal, Groups 3 and 4 may use the owner-prepared statement, a CPA-compiled statement or approved bond. Group 5 may use a CPA-reviewed statement or approved bond.
Mechanical license timing
Mechanical contractor licenses expire October 31 in odd-numbered years. The 2025–2027 mechanical renewal period is closed; a lapsed 2025 license may require Doc. 165 and Doc. 181 for reinstatement.
How to File a Contractor Complaint
The Board can investigate licensing-law, building-code and published construction-standard violations. It cannot ordinarily decide private contract or monetary disputes or order repairs or restitution.
The Board may investigate
- Unlicensed contracting.
- Work outside the approved classification.
- Building-code violations.
- Published installation-standard violations.
- Misuse of a license or qualifying party.
The Board generally cannot order
- Payment of private damages.
- Contract refunds.
- Repair or completion of the project.
- Resolution of ordinary monetary disputes.
- Correction of purely cosmetic issues.
Complaint preparation checklist
- Complete the official complaint form.
- Provide the required notarized signature.
- Attach the contract and building permit.
- List every defect or violation you want inspected.
- Attach photographs, reports and written correspondence.
- Keep a full copy because materials submitted to the Board are retained.
Possible complaint outcomes
A qualifying complaint may receive a case number and an investigation. Possible outcomes include closure, a letter of caution, consent-agreement discipline, citation or a contested hearing.
Local Business Licenses, Permits and Inspections
A state contractor license does not replace city or county business-license and permit requirements.
Project inside city limits
Contact the municipality and ask for the Business License or Building Permit department.
Project outside city limits
Contact the county and ask which business-license, building-permit and inspection rules apply.
Common South Carolina Contractor Licensing Mistakes
Residential credentials may appear only in the Residential Builders Commission lookup.
The official lookup instructs users to enter numbers only.
An active contractor can still lack capacity for the complete project value.
Required exams should be completed before the licensing application is submitted.
The commercial Board does not accept Residential Builders Commission bonds.
Project-specific duties and classifications make the affidavit easier to evaluate.
Technical-exam waiver eligibility does not replace the South Carolina application.
State licensure does not replace city or county approvals.
Forms, Office Location and Contact Help
South Carolina Contractor’s Licensing Board
Office: 110 Centerview Drive, Columbia, SC 29210
General LLR office hours: 8:30 a.m.–5:00 p.m.
Applications by mail: P.O. Box 11329, Columbia, SC 29211
Telephone: 803-896-4686
Email: Contact.CLB@llr.sc.gov
Official form finder
| Document | Purpose | Use it when | Official action |
|---|---|---|---|
| Doc. 165 | General and Mechanical Contractor Application. | Applying for a new license or reinstating a lapsed license. | Open Doc. 165 |
| Doc. 168 | Initial PQP or QP certification. | The qualifier is new or has been inactive more than four years. | Find Doc. 168 |
| Doc. 167 | Work Experience Affidavit. | Documenting qualifying experience. | Open Doc. 167 |
| Doc. 172 | Owner-prepared financial statement. | Using the owner-prepared route for an eligible group. | Open Doc. 172 |
| Doc. 180 | Contractor license revision. | Changing an eligible name, address or group limit. | Find Doc. 180 |
| Doc. 181 | PQP or QP certification revision. | Transferring an active qualifier or adding a classification. | Open Doc. 181 |
South Carolina Contractor License FAQs
How do I look up a South Carolina contractor license?
Use the official SC LLR commercial contractor lookup for general and mechanical contractors. Use the separate Residential Builders Commission lookup for residential builders and residential trade credentials.
When is a commercial contractor license required in South Carolina?
A general or mechanical contractor license is generally required for regulated commercial construction when the total construction cost exceeds $10,000. Local requirements may still apply below that amount.
What is the difference between the commercial Board and Residential Builders Commission?
The Contractor’s Licensing Board handles commercial general and mechanical contractors and several related license types. The Residential Builders Commission handles home builders and specified residential trades and specialty contractors.
How much is a new commercial contractor license?
The current General and Mechanical Contractor application lists a nonrefundable $350 license fee. Exam, financial-statement, bond and business-registration costs are separate.
What is a Primary Qualifying Party?
The PQP is the certified individual designated by the license applicant as principally responsible for directing or reviewing work in a requested classification or subclassification.
What exams are required?
Applicants generally need the South Carolina Business Management and Law for Commercial Contractors exam and any required technical exam. Some classifications have no technical exam, and approved waiver routes may satisfy the technical component.
How much experience is required?
Exam applicants generally provide at least two years of relevant experience completed within the previous five years for every requested classification. Approved waiver applicants follow the applicable waiver instructions.
What do license Groups 1 through 5 mean?
The group controls the maximum bid and job value. General contractor limits range from $100,000 in Group 1 to unlimited in Group 5. Mechanical contractors use a separate monetary schedule.
Does reciprocity automatically issue a South Carolina license?
No. Reciprocity may waive an accepted technical exam, but the applicant must still complete the South Carolina licensing process, official verification, Business Management and Law exam and other requirements.
Can the Board order a contractor to refund money or make repairs?
Generally no. The Board can investigate licensing-law, building-code and construction-standard violations and discipline a licensee, but it does not ordinarily resolve private monetary disputes or order repairs or restitution.
Verify the Whole License, Not Just the Status
Before hiring, confirm the correct board, legal business name, active status, classification, qualifying party and group limit. Then verify local business-license, permit and inspection requirements for the project address.
Before applying, complete the qualifying-party path, exams and experience evidence, choose the correct group, prepare the financial statement or surety bond and use the current official forms.