How often do I need to renew my Mechanical Contractor License in South Carolina?

The Mechanical Contractor License in South Carolina must be renewed every 24 months.

How much does it cost to renew a Mechanical Contractor License in South Carolina?

The renewal cost for a Mechanical Contractor License in South Carolina is $135.00.

South Carolina renewal guide

Mechanical Contractor License

Q: What happens if my Mechanical Contractor License expires in South Carolina?

Performing mechanical contracting without a valid license in South Carolina is a misdemeanor under SC Code § 40-11-200. Conviction carries up to $5,000 in fines and up to one year in prison. The LLR may also pursue civil penalties and seek injunctive relief to halt unlicensed work.

If this license is up for renewal, this page gives you the fee, the timeline, and the items that usually hold the filing up.

See this alongside the other 10 South Carolina license pages we track.

Start here

What matters before you file.

Check the fee, the renewal window, and the documents or insurance records that can slow approval down.

Issuing authority

South Carolina Contractors Licensing Board (LLR)

Renewal period

Every 24 months

Renewal fee

$135.00

Late penalty

$100.00

Bond requirement

Insurance requirement

Before you renew

Get the filing straight.

1
File with the board

File through South Carolina Contractors Licensing Board (LLR) and pay the $135.00 renewal fee once the supporting proof is ready.
Renew online
2
Leave room for processing

Typical processing time is 45 days, so do not wait until the last minute.

If you miss the deadline, the late penalty is $100.00, with a 30-day grace period.

Detailed notes

The fine print is here.

South Carolina Mechanical Contractor License

Any company installing, altering, or repairing mechanical systems on South Carolina projects valued at more than $10,000 must hold a CLB mechanical contractor license from the SC Contractors Licensing Board (LLR). The license covers piping, sheet metal, pressure and process piping, and other mechanical systems — distinct from the electrical (EL), plumbing (PL), and air conditioning (AC) subclassifications the CLB also issues.

Four years of experience, an exam, and financial qualification required

Applicants need four years of documented mechanical contracting experience, the CLB mechanical contractor examination (business/law and trade components), and either a CPA-prepared financial statement for your license group or a surety bond in the CLB-set amount. The initial application fee is $350.

Processing takes up to 45 days.

Costs and renewal

Mechanical contractor licenses expire October 31 of odd-numbered years. The biennial renewal fee is $135 on time. The late penalty starts at $100 for November renewal, $150 for December, and $200 for January. After January 31, reinstatement is required. No continuing education is required for renewal.

Operating without a license

Performing mechanical contracting on projects over $10,000 without a valid CLB license is a misdemeanor under SC Code § 40-11-200. Conviction carries up to $5,000 in fines and up to one year in prison. The LLR may also seek injunctive relief to halt unlicensed work. Apply and renew at llr.sc.gov/clb.

Official links