Official-source review: August 24, 2026
South Carolina plumbing license: Residential plumbing work exceeding $500 requires the Residential Specialty Plumbing license. Regulated commercial plumbing work exceeding $10,000 requires the appropriate commercial mechanical classification and group.
What the South Carolina plumbing license covers
Residential plumbing work exceeding $500 requires the Residential Specialty Plumbing license. Regulated commercial plumbing work exceeding $10,000 requires the appropriate commercial mechanical classification and group.
- Plumbing contracting under the residential or commercial classification issued.
- Work only within the classification and group issued.
- Obtain every local permit and inspection.
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South Carolina plumbing license requirements at a glance
| Requirement | Current rule or route |
|---|---|
| Route | Residential Specialty Plumbing license; commercial PB mechanical classification for regulated work over $10,000 |
| Experience | Residential applicant: one year of verified experience. Commercial qualifying party: generally two years within the preceding five unless waived. |
| Exam | Residential or commercial trade examination plus the applicable Business Management and Law examination, unless an approved waiver applies. |
| Fees | Residential plumbing application: $135; license: $220. Commercial license: $350. PSI, bond and permit fees are additional. |
| Insurance or bond | Complete residential bond/business requirements and commercial financial or insurance conditions. |
| Renewal | Residential license renews June 30 in odd years; commercial licensing follows the Board cycle. |
Do not treat this table as an approval notice. The agency, certification organization or local jurisdiction makes the final eligibility decision and may request additional evidence.
How to complete the South Carolina plumbing license process
- Identify the residential, commercial or specialty scope.
- Complete the required experience and training.
- Obtain approval and pass each required examination.
- Submit the application, supporting records and current fee.
- Complete insurance, bond, business and permit requirements.
- Renew on time and retain compliance records.
Keep copies of every experience certificate, examination result, bond or insurance filing and payment receipt. Names and business entities should match across the application and supporting documents.
Important South Carolina rules and boundaries
- Residential and commercial credentials are separate.
- State licensing does not replace local permits.
- Contract value can change the required route.
- The responsible authority makes the final eligibility decision.
South Carolina may separate the credential held by a worker from the contractor license held by the business, while preserving local authority over permits and inspections. Confirm every applicable layer before bidding, advertising or beginning regulated work.
South Carolina plumbing license cost and renewal
Budget separately for applications, examinations, training, insurance, bonds, business filings and permits.
Renew each individual, company and specialty credential separately and confirm current fees before filing.
Government charges are only part of the expected cost. Training, examination preparation, fingerprints, surety premiums, insurance, equipment calibration and local permits can add to the total.
South Carolina plumbing license checklist
- Confirm that this credential matches the exact work you will perform.
- Check whether the applicant is an individual, sole owner or separate business entity.
- Collect experience and training records before submitting the application.
- Use the current official form and fee schedule.
- Complete every required examination or approved certification route.
- File bonds, insurance and fingerprints when applicable.
- Check county, city, water supplier and building-permit rules.
- Save the expiration date and renewal requirements.
Frequently asked questions
Is this credential statewide?
The principal credential is statewide, but local business licensing, permits and inspections still apply.
Is an exam required?
Residential or commercial trade examination plus the applicable Business Management and Law examination, unless an approved waiver applies.
When does it renew?
Residential license renews June 30 in odd years; commercial licensing follows the Board cycle.
Are local permits separate?
Yes.
Official sources used
Verified licensing details
- Jurisdiction
- state license, certification or registration plus local permits, depending on scope
- Licensing authority
- South Carolina Residential Builders Commission and Contractors’ Licensing Board
- Fees
- Residential plumbing application: $135; license: $220. Commercial license: $350. PSI, bond and permit fees are additional.
- Experience
- Residential applicant: one year of verified experience. Commercial qualifying party: generally two years within the preceding five unless waived.
- Exams
- Residential or commercial trade examination plus the applicable Business Management and Law examination, unless an approved waiver applies.
- Insurance or bond
- Complete residential bond/business requirements and commercial financial or insurance conditions.
- Continuing education
- Maintain plumbing-code competence and any medical-gas or specialty training required by scope.
- Renewal period
- Residential license renews June 30 in odd years; commercial licensing follows the Board cycle.
Official sources
Official sources last checked August 23, 2026.
Requirements can change and local rules may apply. Confirm the current requirements with the official authority before paying a fee or beginning work.