Journeyman pipefitters under UA Local 421 in Charleston, SC earn $35.21/hr in base wages, or $46.14/hr as a total package with fringe benefits, effective Jan 2024.
UA Local 421 runs its own dispatch and out-of-work list — call the hall to confirm hours, books and what to bring. Gulfstream is a private recruiter and does not control hall referral.
The Local 421 pay scale is $35.21 per hour for journeymen in Charleston, SC, or about $70,420 a year at 2,080 hours. The total package, including employer-paid fringe benefits, is $46.14 per hour. That is the rate in force, effective 1/28/24.
| Local 421 journeyman hourly wage | $35.21 / hour |
|---|---|
| Total package (wage + fringe benefits) | $46.14 / hour |
| Annualized at 2,080 hours (base wage) | $70,420 / year |
| First-period apprentice (≈45–50% of scale) | $15.84–$17.61 / hour |
| Wage sheet effective | 1/28/24 |
| Classification | Combo |
A Local 421 apprentice in Charleston, SC starts at roughly $15.84 an hour — about 45% of the $35.21 journeyman scale — and steps up each period, reaching around $26.41 an hour by the fourth year and full scale on turning out. These are the standard percentage steps of scale, not a wage sheet Local 421 has published; confirm the exact schedule with the JATC.
| 1st period (year 1) | 45% of scale | $15.84 / hour | $31,689 |
|---|---|---|---|
| 2nd period (year 2) | 55% of scale | $19.37 / hour | $38,731 |
| 3rd period (year 3) | 65% of scale | $22.89 / hour | $45,773 |
| 4th period (year 4) | 75% of scale | $26.41 / hour | $52,815 |
| 5th period (year 5) | 85% of scale | $29.93 / hour | $59,857 |
| Journeyman (turned out) | 100% of scale | $35.21 / hour | $70,420 |
UA Local 421 runs its own referral procedure and books are signed at the hall — call 843-554-3655 to confirm dispatch hours, required documents (union card, certifications, ID) and current list standing before traveling in. Contact details are imported from the UA, SMART and IBEW public directories. Gulfstream is a private recruiting firm, is not affiliated with the local, and does not control hall dispatch.
United Association Local 421 represents plumbers, pipefitters, and HVAC technicians across a significant portion of the Carolinas, with its primary South Carolina operations centered in the Charleston market. This local is instrumental in supporting the region’s growing industrial and commercial infrastructure, providing a skilled labor pool for high-stakes projects ranging from aerospace manufacturing facilities to pharmaceutical plants. As Charleston continues to expand its footprint as a major logistics and industrial hub, Local 421 ensures that mechanical systems are installed to rigorous safety standards by UA-certified professionals. The local’s presence provides a structured framework for labor relations in a region that has seen rapid private-sector investment and public infrastructure development.
The market served by Local 421 is characterized by a mix of heavy industrial work, commercial construction, and essential service maintenance. In the Charleston metro area, signatory contractors rely on the local's hiring hall to staff large-scale mechanical contracts that require specialized welding certifications and complex piping expertise. By maintaining a centralized training and dispatch system, the local serves as a critical partner for mechanical primes who need to scale their workforce quickly to meet project deadlines. For the tradesperson, this means access to diversified work opportunities across the Lowcountry, supported by a collective bargaining agreement that establishes clear expectations for compensation, safety, and professional conduct in the field.
As of January 28, 2024, the Journeyman hourly rate for UA Local 421 is established at $35.21, contributing to a total package of $46.14 when including fringe benefits. This package represents the baseline for skilled mechanical work in the Charleston market. Apprentices enter the program at a percentage of the journeyman rate, typically starting between 45% and 55% for first-year trainees. These rates increase annually as the apprentice completes required classroom hours and on-the-job training milestones. By the fifth year of the program, an apprentice's wage closely mirrors the full journeyman scale. This structured progression ensures that labor costs remain predictable for contractors while providing a clear career path for those entering the piping trades. Members should contact the Charleston business office to verify specific classification differentials and any recent adjustments to the allocation.
UA Local 421 maintains a broad jurisdiction that covers the eastern and central regions of South Carolina, with its headquarters in Charleston serving as the hub for Lowcountry operations. The chartered territory includes major industrial corridors and commercial centers where piping and HVAC work falls under the master agreement. This jurisdiction encompasses work on pressurized systems, medical gas, hydronic heating, and process piping within industrial facilities. Members dispatched through the Charleston hall are expected to travel to job sites within the designated counties, ensuring that signatory contractors have access to qualified labor regardless of project location. The local coordinates closely with neighboring UA locals to manage regional labor needs and ensure consistent enforcement of work rules across state lines.
The contractor landscape for Local 421 in Charleston is composed of major mechanical primes and regional specialty subcontractors. These firms handle large-scale commercial builds, such as hospitals and university facilities, as well as industrial process piping for the state’s manufacturing sector. Signatory contractors utilize the local's referral system to procure welders and fitters who hold specific certifications required by owners and general contractors. While the industrial sector drives significant man-hours, there is also a robust presence of service-oriented contractors focusing on long-term facility maintenance and HVAC system upgrades. This mix of project-based construction and steady service work provides a balanced employment environment for the local membership since 2014.
The hourly wage of $35.21 is the gross amount paid directly to the member's paycheck before taxes. The total package of $46.14 includes an additional $10.93 in employer-paid benefits, such as health insurance and pension contributions. These fringes are paid on top of the wage and are not deducted from the hourly rate, providing a comprehensive compensation structure.
Members are generally expected to provide their own transportation to job sites within the local's chartered territory. Depending on the specific project and the distance from the jurisdictional hub, some contractors may provide travel pay or per diem, though this is governed by the specific terms of the current Master Labor Agreement and project-specific project labor agreements (PLAs).
Yes, experienced tradespeople can join through a process known as 'organizing in.' This typically involves a skills assessment or 'probie' period where the individual's proficiency in welding, pipefitting, or plumbing is verified. Once skills are confirmed, the individual is placed at the appropriate journeyman or high-level apprentice tier based on their verifiable years of experience in the trade.
The Joint Apprenticeship and Training Committee offers a variety of UA-certified programs, including ASME pressure vessel welding, medical gas installation, backflow prevention, and various HVACR certifications. These credentials are recognized nationally across all UA locals, allowing members to demonstrate a high level of competency to signatory contractors in the Charleston market and beyond.
UA Local 421 is seated in Charleston, South Carolina (SC). We hold published wage sheets for 2 locals across South Carolina — compare nearby scales before you take a call.
We are a mechanical, plumbing and electrical construction recruiting firm serving Charleston and the rest of South Carolina, including contractors signatory to UA Local 421. Our office is in South Corona, California and we place union-scale tradespeople and field leadership nationwide.
Gulfstream Strategic Placements, 4160 Temescal Canyon Road, Suite 401, Corona, CA 92883. Phone (951) 208-7780. Email hello@gulfstreamsp.com. Monday–Friday, 7:00 AM–5:00 PM Pacific.View our verified Google Business Profile
Journeyman scales as last published by each local. Rates change every contract cycle — confirm with the hall.
The Local 421 pay scale is $35.21 per hour for journeymen in Charleston, SC, or about $70,420 a year at 2,080 hours. The total package, including employer-paid fringe benefits, is $46.14 per hour. That is the rate in force, effective 1/28/24.
Journeyman pipefitters under the UA Local 421 agreement make $35.21 an hour in base wages, or $46.14 an hour counting the fringe package, per the wage sheet effective 1/28/24. Overtime, shift premiums, and travel or subsistence pay are added on top under the local's CBA.
$35.21 per hour base wage and $46.14 per hour total package for a journeyman in Charleston, SC, effective 1/28/24. Annualized at 2,080 hours that is roughly $70,420 before overtime.
A Local 421 apprentice in Charleston, SC starts at roughly $15.84 an hour — about 45% of the $35.21 journeyman scale — and steps up each period, reaching around $26.41 an hour by the fourth year and full scale on turning out. These are the standard percentage steps of scale, not a wage sheet Local 421 has published; confirm the exact schedule with the JATC.
About $15.84 an hour, or roughly $31,689 a year at 2,080 hours, based on the standard 45% first-period step of the $35.21 journeyman rate effective 1/28/24. Apprentices also earn benefit contributions and paid classroom progression; the JATC sets the exact percentage.
Around $22.89 an hour at the standard 65% third-period step, moving to about $26.41 an hour in the fourth period and $35.21 an hour at full journeyman scale. Confirm the published step schedule with the Local 421 training center.
The current UA Local 421 journeyman rate is $35.21/hour, with a total package of $46.14/hour including fringe benefits, effective 1/28/24. At 2,080 hours that works out to roughly $70,420 per year in base wages before overtime. Rates change with each CBA cycle — confirm with the Local 421 business office before relying on the figure.
The $35.21/hour figure is the base journeyman wage that lands on the paycheck. The $46.14/hour total package adds employer-paid fringes — health and welfare, pension, annuity, apprenticeship training, and industry funds. Contractors bid work off the total package, so that is the number that matters when comparing plumbers & pipefitters labor costs across locals.
Apprentices under the UA Local 421 agreement are paid a graduated percentage of the journeyman rate, typically starting near 40–50% in the first period and stepping up each six-month or annual period until reaching 100% at turnout. Against the current $35.21/hour journeyman rate, a first-period apprentice would be in the $15.84–$17.61/hour range. The exact percentage schedule is set by the local's JATC.
UA Local 421 is headquartered in Charleston, SC and dispatches plumbers & pipefitters manpower throughout its chartered jurisdiction. Work performed inside that territory falls under the local's collective bargaining agreement and wage schedule, even when the contractor is based elsewhere and travels in.
Most locals require applicants to be at least 18, legally able to work in the U.S., hold a high school diploma or GED, pass a basic math/aptitude assessment and a drug screen, and be physically able to perform plumbers & pipefitters work. Some Local 421 programs give preference to applicants inside the jurisdiction or to veterans. Eligibility rules are set by the local's Joint Apprenticeship and Training Committee (JATC), so confirm the current criteria with the hall before applying.
Apprenticeship applications go through the UA Local 421 JATC, not through a contractor or a recruiter. Applications typically open in defined intake windows each year: you submit the application with proof of age, education, and residency, sit for an aptitude test, and then interview. Ranked applicants are placed on an eligibility list and indentured as signatory contractors call for apprentices. Gulfstream Strategic Placements does not process apprenticeship applications — contact the Local 421 training center directly.
Plumbers & Pipefitters apprenticeships generally run four to five years — roughly 8,000–10,000 hours of on-the-job training plus several hundred classroom hours per year. Apprentices earn a paycheck the entire time, stepping up through the wage periods until they turn out as journeymen at 100% of scale.
Signatory contractors hire through the local's hiring hall, so working under the UA Local 421 agreement generally means being a member or being organized in through the local's process. Journeymen from other locals can travel in by signing the out-of-work book, subject to the local's referral rules and manpower needs. Non-union plumbers & pipefitters professionals are usually placed with open-shop contractors instead — we recruit for both.
Rates move with the collective bargaining agreement, typically on a fixed anniversary date each year of a three- to five-year contract, with negotiated increases split between the base wage and the fringe package. The figures on this page reflect the 1/28/24 schedule; check with the Local 421 business office for any increase that has taken effect since.
Wage rates vary widely by local and market. Use the Union Pay Scale Explorer to sort every UA and SMART local by hourly wage, total package, and annualized pay so you can benchmark Local 421 against neighboring jurisdictions and other plumbers & pipefitters markets.
The UA Local 421 hall is at 2556 Oscar Johnson Dr N Charleston, SC 29405, serving Charleston, SC and the surrounding jurisdiction. Hall phone: 843-554-3655.
UA Local 421 runs its own referral procedure and books are signed at the hall. Call the hall at 843-554-3655 to confirm dispatch hours, required documents (union card, certifications, ID) and current list standing before traveling in — Gulfstream does not control hall dispatch.
UA Local 421 can be reached at 843-554-3655. Contact details are imported from the union's public directory listing — confirm hours with the hall.