MTC/Plumbers & Pipefitters UA LU 421

Mechanical Trades Carolinas is the premier welding/piping and HVAC Apprenticeship Training Center in the Carolinas. Training young men and women for careers in the Commercial and Industrial Construction fields throughout the Carolinas and across the Country since the 1950’s. Our Graduates and current Apprentices are currently employed in the following sectors: Pharmaceutical-Hi Purity, Nuclear, Powerhouse, Oil refinery, Paper Mill, Commercial Hi-Rise, Hospital-Medical sectors, Data Center & Critical systems Facilities Industries For the top Contractors in the Country.

MTC/LU 421 is a State and DOL registered 5 year Apprenticeship Program. Our Apprentices attend part-time evening classes during the week at one of our three Training Centers located throughout the Carolinas (Charlotte, Raleigh and Charleston) and work full time, while receiving “paid on the job training” under the direction of one or more of our highly skilled Craft Specific Journeypersons.

Our Apprentices receive the following: paid on the job training, competitive salary with yearly raises, full medical benefits for themselves and family, pension, Annuity and College Credits upon successful completion of our Program from Washtenaw Community College with “Zero” Loans to repay!

If you’re interested in a High Paying Career and not just a job, contact us and join the ranks of over 350,000 UA Members across the country who are building America every day!

For more information on beginning an exciting career with UA Local 421, please review these videos.

Apprentice Screening/Application Policy

All new apprentice applications will ONLY be taken after meeting the following requirements:

  • Copy of a Valid North Carolina or South Carolina Driver’s License
  • Must be current resident of North Carolina or South Carolina
  • Copy of Social Security Card
  • Copy of a Valid Birth Certificate
  • Copy of High School Diploma or GED
  • Career Readiness Certificate Test Results with Silver or Higher.
    This site explains the test and minimum requirements for our trade, and also offers practice exams:
    Tutoring is available through the following centers:

  • Members coming in from the Military should provide their DD214
  • Anyone transferring from a Community College program may be exempt from the CRC test
  • Dependable transportation is required

Application Deadline

Please note that the deadline for September 2022 enrollment is May 15th, 2022. You must complete and submit the Apprentice Application and all additional documents before that date, or you will have to wait for the following term.


This application is only for joining the LU 421 Apprenticeship/Welding Pre-Apprenticeship, all others please visit

Online Application

* Required Field
First Name *
Middle Initial
Last Name *
SSN Last 4 *
Address *
City *
State *
Zip *
Date of Birth *
Email Address *
Phone Number *
Gender *
Ethnicity *
African American
Native American
Veteran *
Education Level *
High School
Some College
College Graduate
How did you hear about us?
Building Bridges
Career Day
High School Teacher or Counselor
Local Member
Newspaper Ad
Personal Friend
Political Organization
Project Pride
Skilled Builders
TV or Radio Commericals
USDOL - Womens Bureau
Veterans Leadership Program
Please upload the following documents in PDF format:

Resume *

Birth Certificate *

Valid Drivers License/Military ID *

High School Transcript/GED Scores *

Career Readiness Certification Test Scores *

Other (College Transcripts, Resume, Training Certification, etc.)

I hereby affirm that all the information entered above and submitted by PDF is accurate and complete to the best of my knowledge.


For questions or concerns please send us a message using our contact form.