3 union halls based in Charleston, SC run registered, earn-while-you-learn apprenticeships across HVAC and sheet metal, plumbing and pipefitting, electrical. First-period apprentices are paid a share of the local's journeyman scale — roughly $15.30 to $15.84 an hour on the sheets we hold — rising each period to full scale on turning out. The percentage steps below are the standard ones used across these trades, not a schedule the local has published; confirm the current figures and intake dates with the hall.
SMART Local 399 cover HVAC and sheet metal work in Charleston, SC. Their program typically runs four- to five-year, combining about 8,000 paid on-the-job hours with roughly 200 classroom hours a year, ending as a journeyman sheet metal worker or HVAC service technician. We hold no published wage sheet for these halls, so no apprentice rate is quoted — the local SMART/SMACNA joint apprenticeship training committee has the current step schedule.
SMART Local 399 apprenticeship
UA Local 421 run plumbing and pipefitting apprenticeships in Charleston, SC — typically a five-year program of about 8,000 to 10,000 paid on-the-job hours plus roughly 216 or more classroom hours a year, turning out a journeyman plumber, pipefitter, welder or HVAC service technician. Against UA Local 421's published $35.21 journeyman scale (effective 1/28/24), a first-period apprentice earns about $15.84 an hour, roughly $31,689 a year, before the fringe package.
| Period | Share of scale | Hourly | Annualised |
|---|---|---|---|
| 1st period (year 1) | 45% of scale | $15.84 / hr | $31,689 |
| 2nd period (year 2) | 55% of scale | $19.37 / hr | $38,731 |
| 3rd period (year 3) | 65% of scale | $22.89 / hr | $45,773 |
| 4th period (year 4) | 75% of scale | $26.41 / hr | $52,815 |
| 5th period (year 5) | 85% of scale | $29.93 / hr | $59,857 |
| Journeyman (turned out) | 100% of scale | $35.21 / hr | $70,420 |
IBEW Local 776 run electrical apprenticeships in Charleston, SC — typically a five-year program of about 8,000 paid on-the-job hours plus roughly 150 to 200 classroom hours a year, turning out a inside wireman journeyman electrician. Against IBEW Local 776's published $34.00 journeyman scale (effective 5/23/25), a first-period apprentice earns about $15.30 an hour, roughly $30,600 a year, before the fringe package.
| Period | Share of scale | Hourly | Annualised |
|---|---|---|---|
| 1st period (year 1) | 45% of scale | $15.30 / hr | $30,600 |
| 2nd period (year 2) | 55% of scale | $18.70 / hr | $37,400 |
| 3rd period (year 3) | 65% of scale | $22.10 / hr | $44,200 |
| 4th period (year 4) | 75% of scale | $25.50 / hr | $51,000 |
| 5th period (year 5) | 85% of scale | $28.90 / hr | $57,800 |
| Journeyman (turned out) | 100% of scale | $34.00 / hr | $68,000 |
Step percentages are the standard ones used across the trade, applied to each local's published journeyman sheet — not a schedule the local has published. Sheet set last cross-checked 2026-09-01.
First-period union apprentices in Charleston, SC earn about 45% of their local's journeyman scale — $15.30 to $15.84 an hour on the sheets we hold — and step up each period until they reach full scale on turning out. Health, pension and training contributions are paid on top from day one on signatory work.
Against IBEW Local 776's published $34.00 inside-wireman scale (effective 5/23/25), a first-period apprentice earns about $15.30 an hour and a fourth-period apprentice about $25.50. The electrical training alliance sets the exact steps — confirm them before you apply.
Registered construction apprenticeships in SC generally ask for: 18 years or older at the time of indenture; High school diploma or GED, with algebra normally required; Proof of legal authority to work in the United States; Valid driver's licence and reliable transportation to jobsites; Aptitude test and panel interview, then ranking on the apprentice list; Ability to pass a physical and a substance screen before dispatch. The local committee sets its own additions, so check with the hall before you apply.
Most of these programs run four to five years, combining paid on-the-job training with classroom instruction each year. You work and earn from the first period; there is no tuition on a registered program, though books and tools are usually on you.
No. Indenture into the apprenticeship is how most people enter the trade — you apply directly to the joint apprenticeship and training committee for the local, not through an employer. If you already have verified hours in the trade, ask the hall about direct entry or an organizing route instead.
We recruit journeyman-level and leadership mechanical, HVAC and electrical talent for contractors, so apprenticeship intake runs through the hall, not through us. Once you have turned out, set a job alert for Charleston, SC and we will send the union-scale openings as they come in.
Union pay in Charleston, SC · Apprenticeship pay by local · Apprenticeships by city