Skip to main content
Plumb/Square
Building Trades10 Internationals41+ Major Locals

Find Your
Local.

The union hall is the gateway to the trade. The apprenticeship is free — you get paid to learn. But entry is competitive, waitlists are real, and dispatch runs your schedule. Here's what you need to know.

Internationals
10
Combined members
3.2M+
Major locals listed
41+
Apprenticeship programs
1,600+
§ 01

The Internationals.

IBEW

International Brotherhood of Electrical Workers

Members
775K+

The largest electrical workers union in North America, covering inside wiremen, outside lineworkers, and teledata techs. Widely considered the gold standard for electrician apprenticeships.

ElectricianLineworkerTeledata TechnicianCable Splicer+1 more
Est. 18917 locals listed →
UA

United Association of Plumbers and Pipefitters

Members
370K+

The union for plumbers, pipefitters, steamfitters, and sprinkler fitters. UA apprenticeships are five years and produce some of the most skilled tradespeople in the industry.

PlumberPipefitterSteamfitterSprinkler Fitter+2 more
Est. 18896 locals listed →
SMART

Sheet Metal, Air, Rail and Transportation Workers

Members
203K+

Covers sheet metal workers, HVAC installers, and transportation workers. The sheet metal apprenticeship is five years and highly regarded for precision fabrication and HVAC systems work.

Sheet Metal WorkerHVAC InstallerRailroad WorkerBus Operator+1 more
Est. 18884 locals listed →
UBC

United Brotherhood of Carpenters and Joiners of America

Members
520K+

The largest building trades union, covering carpenters, millwrights, pile drivers, floor layers, and more. UBC has invested heavily in training centers and represents one of the broadest skill sets in construction.

CarpenterMillwrightCabinet MakerFloor Layer+3 more
Est. 18814 locals listed →
Ironworkers

International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers

Members
140K+

Ironworkers connect steel, set rebar, and build the skeleton of every major structure. It is one of the most physically demanding and highest-paid trades in construction.

Structural IronworkerOrnamental IronworkerReinforcing IronworkerRigger+1 more
Est. 18964 locals listed →
Boilermakers

International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers

Members
54K+

Boilermakers build and maintain pressure vessels, boilers, storage tanks, and industrial equipment. It is highly specialized industrial work with significant travel and strong pay.

BoilermakerWelderHeat and Frost InsulatorShipbuilder+1 more
Est. 18803 locals listed →
IUOE

International Union of Operating Engineers

Members
420K+

Operating Engineers run the heavy equipment on every major construction project — cranes, excavators, graders, and more. It is a skills-intensive, well-compensated trade with a distinct career ladder.

Heavy Equipment OperatorCrane OperatorStationary EngineerSurvey Technician+1 more
Est. 18963 locals listed →
LIUNA

Laborers' International Union of North America

Members
500K+

LIUNA is the gateway trade for many construction workers — it covers general laborers, hazmat workers, tunnel workers, and mason tenders. Entry is more accessible than most skilled trades.

Construction LaborerAsbestos/Hazmat WorkerMason TenderTunnel Worker+1 more
Est. 19034 locals listed →
BAC

International Union of Bricklayers and Allied Craftworkers

Members
100K+

BAC covers bricklayers, masons, tile setters, terrazzo workers, and marble setters. It is one of the oldest trade unions and produces highly skilled craftspeople in masonry and tile work.

BricklayerMasonTile SetterTerrazzo Worker+2 more
Est. 18653 locals listed →
IUPAT

International Union of Painters and Allied Trades

Members
180K+

IUPAT covers painters, glaziers, drywall finishers, floor layers, and other finishing trades. The Finishing Trades Institute runs the apprenticeship program.

PainterDrywall FinisherGlazierSoft Floor Layer+2 more
Est. 18873 locals listed →
§ 02

What Union Membership Actually Means.

The Good

Paid to learn from day one.

Union apprenticeships are Joint Apprenticeship Training Committees (JATCs) — co-funded by contractors and the union. You earn a wage while you train, typically starting at 40–50% of journeyman scale and graduating in steps. No student loans. No debt. By the time you're a journeyman you've been earning for five years.

The Real

Entry is a job in itself.

Competitive locals — IBEW 3, UA Local 1, Ironworkers 40 — have aptitude testing, waitlists, and limited openings. Knowing someone helps. Applying off-cycle doesn't. Some locals open applications for a matter of weeks each year. Be ready when the window opens. Pre-apprenticeship programs exist specifically to improve your odds.

The System

Dispatch runs your life.

Union construction is project-based. You don't have a permanent employer — you're dispatched to jobs by the local. When a project ends, you're back on the out-of-work list. Experienced journeymen learn to manage this: keep relationships with foremen, stay in good standing with your business agent, and be willing to travel when local work is slow.

The Benefits

The package is the point.

Union scale wages look high on paper. The total package is actually higher. Benefit packages typically include health insurance (for you and family), defined-benefit pension contributions, annuity fund contributions, and vacation pay. At major locals, the full package can be $30–40/hr on top of take-home wages. Non-union shops rarely match this.

The Politics

Culture varies by local.

No two locals are identical. Some are tightly run professional organizations with modern training centers and clean books. Others have histories of nepotism, slow referrals for outsiders, and internal politics. The DOL and NLRB maintain oversight, and most locals are dramatically better than their reputations from decades past — but due diligence matters. Talk to journeymen in the local before you commit.

The Horizon

Journeyman to foreman to super.

The union career ladder is real. Journeyman → Foreman → General Foreman → Superintendent → Project Manager. The last two often cross to the contractor side — many successful owners started as union apprentices. Journeyman cards are also portable: a travel card lets you work in other locals' jurisdictions when you're between jobs locally.

Bottom line

Union membership isn't free money. It's a structure that rewards people who show up, learn the trade, and work the system correctly.

§ 03

Major Locals Directory.

Major locals in prominent metro areas. This is not exhaustive — there are 1,600+ registered apprenticeship programs across the country. Use this as a starting point, then call the local directly.

California

IBEW Local 11
Los Angeles · Los Angeles County

Major LA local covering commercial and industrial work throughout LA County. Very active in large-scale projects including entertainment, data centers, and infrastructure. Competitive entry.

ElectricianTeledata Technician
(323) 953-5100
IBEW Local 6
San Francisco · San Francisco and northern San Mateo County

San Francisco's inside wireman local. High cost of living in the jurisdiction is offset by scale — journeyman wages are among the highest in California. Training center in the city.

Electrician
(415) 861-1430
UA Local 38
San Francisco · San Francisco and San Mateo County

San Francisco's plumbers local. Active in commercial, institutional, and residential construction throughout the Bay Area. Strong training program with a well-regarded JATC.

Plumber
(415) 648-8400
UA Local 342
Concord · Contra Costa and Alameda counties

Covers the East Bay including Contra Costa and Alameda counties. Active in commercial, industrial, and refinery-adjacent work. Known for solid apprenticeship training.

PlumberHVAC Mechanic
(925) 363-4232
Millwrights Local 1546
Oakland · Northern California and Nevada

Northern California's millwrights local. Millwrights install, align, and maintain industrial machinery — a highly specialized and well-compensated classification within the UBC. Active in refineries, food processing, and industrial facilities.

Millwright
IUOE Local 3
San Francisco · Northern California, Nevada, Utah, Hawaii

One of the largest IUOE locals in the Western US, covering an enormous multi-state jurisdiction. Very active in public works, mining, and infrastructure. Separate classifications for construction and stationary engineers.

Heavy Equipment OperatorStationary Engineer
(925) 871-0880
BAC Local 3 CA
San Jose · Northern California

Northern California's BAC local covering masonry and tile throughout the Bay Area and Central Valley. Active in commercial and institutional construction.

BricklayerMasonTile Setter
Glaziers Local 1827
San Francisco · Northern California

Northern California's glaziers local — glaziers install commercial glass, curtain wall systems, and storefronts. It's a highly technical and well-compensated specialty classification within IUPAT.

Glazier

Illinois

IBEW Local 134
Chicago · Chicago and Cook County

One of the largest inside wireman locals in the country. Strong training center and active in major commercial construction. Entry through the JATC — aptitude testing and a competitive selection process.

ElectricianTeledata Technician
(312) 421-1134
UA Local 1
Chicago · Chicago and Cook County

Chicago's plumbers local — one of the most active in the country. Known for rigorous apprenticeship and strong contractor relationships. High journeyman scale. Entry is competitive.

Plumber
(773) 777-1520
UA Local 597
Mokena · Chicago Southland and Will County

Pipefitters and steamfitters local south of Chicago. Very active in industrial and power plant construction in the region. Separate from the plumbers — classification matters.

PipefitterSteamfitter
(708) 479-5977
SMART Local 73
Bedford Park · Chicago and Cook County

Chicago's sheet metal local — one of the largest SMART locals in the country. Very active in commercial construction and industrial HVAC. Strong apprenticeship with modern training facilities.

Sheet Metal WorkerHVAC Installer
(708) 597-7300
Ironworkers
Site ↗
Ironworkers Local 1
Bedford Park · Chicago and Northern Illinois

Chicago's structural ironworkers local — one of the most prominent locals in the country given the scale of Chicago's construction market. High wages, strong brotherhood, genuinely hazardous work at height.

Structural IronworkerOrnamental IronworkerReinforcing Ironworker
(708) 597-7800
UBC Local 13
Chicago · Chicago and Cook County

Part of the Chicago Regional Council of Carpenters. Active in commercial and industrial construction throughout the Chicago area. Large and active local with solid training.

CarpenterMillwright
Boilermakers
Site ↗
Boilermakers Local 1
Chicago · Northern Illinois

Chicago area boilermakers lodge covering industrial and power plant work in Northern Illinois. Strong in refinery and industrial maintenance. Travel work is common for members seeking maximum employment.

BoilermakerWelder
IUOE Local 150
Countryside · Northern Illinois, Eastern Iowa, Northwestern Indiana

One of the largest IUOE locals in the country, covering an enormous jurisdiction. Very active in highway, heavy civil, and commercial earthwork. Strong training program and significant political presence.

Heavy Equipment OperatorCrane Operator
(708) 482-0462
LIUNA Local 1
Chicago · Chicago and Cook County

Chicago's laborers local. Covers general construction labor on major commercial and infrastructure projects throughout the city. A starting point for many workers who later transition to skilled trades.

Construction Laborer
LIUNA Local 731
Chicago · Northern Illinois

Chicago and Northern Illinois laborers local with strong presence in hazardous abatement and environmental remediation — classifications that pay significantly more than general labor.

Construction LaborerAsbestos/Hazmat Worker
BAC Local 21 IL
Chicago · Northern Illinois

Chicago area bricklayers and allied craftworkers. Active in commercial masonry and institutional tile work throughout the region. Training through the International Masonry Institute.

BricklayerMasonTile Setter
IUPAT Local 4
Chicago · Northern Illinois

Chicago's painters and finishing trades local. Active in commercial painting, drywall finishing, and institutional work. Market share is focused on commercial and government work rather than residential.

PainterDrywall Finisher

Indiana

Boilermakers
Site ↗
Boilermakers Local 374
Hammond · Northwestern Indiana

Northwest Indiana boilermakers covering the heavy industrial corridor along Lake Michigan. Very active given the concentration of steel mills, refineries, and utilities in the region.

BoilermakerWelder

Maryland

IBEW Local 26
Lanham · Washington, D.C. metro area (DC, suburban MD, northern VA)

Covers the entire DC metro area including Northern Virginia and Maryland suburbs. Very active in federal, government, and data center construction. One of the most active locals in the Mid-Atlantic.

ElectricianTeledata Technician
(301) 459-5600

Missouri

SMART Local 36
St. Louis · Greater St. Louis area

One of the stronger SMART locals in the Midwest. Active in commercial construction and industrial fabrication. Known for quality apprenticeship training.

Sheet Metal WorkerHVAC Installer

Nevada

IBEW Local 357
Las Vegas · Clark County, Nevada

One of the fastest-growing IBEW locals in the country, driven by massive data center and industrial construction in the Las Vegas area. JATC is modern and well-funded.

Electrician
(702) 452-8022
UA Local 469
Las Vegas · Southern Nevada

Southern Nevada's combined plumber/pipefitter/HVAC local. Very active given the pace of construction in the Las Vegas area. A growing local with a strong training program.

PlumberPipefitterHVAC Mechanic
(702) 452-8022

New Jersey

LIUNA Local 472
Newark · Northern New Jersey

Northern New Jersey laborers local with active tunnel and underground work given the region's major infrastructure projects. Tunnel workers earn significant pay premiums over surface laborers.

Construction LaborerTunnel Worker

New York

IBEW Local 3
New York City · New York City and surrounding area

One of the most powerful and well-compensated locals in North America — journeyman scale exceeds $60/hr with benefits. Entry is highly competitive; expect a rigorous aptitude test and a waitlist of several years.

ElectricianTeledata TechnicianSign Electrician
(718) 591-4000
UA Local 2
New York City · Manhattan and the Bronx

One of New York's plumbing locals covering Manhattan and the Bronx. Journeyman wages among the highest in the country. Highly competitive entry — connections and the right timing matter.

Plumber
(212) 489-8000
SMART Local 137
Scarsdale · Westchester County and lower Hudson Valley

Covers Westchester and the lower Hudson Valley north of NYC. Active in commercial and institutional HVAC work. Well-regarded training center.

Sheet Metal WorkerHVAC Installer
Ironworkers
Site ↗
Ironworkers Local 40
New York City · Manhattan, Bronx, and Westchester

New York's structural ironworkers — the local that built much of NYC's skyline. Wages are among the highest in the industry. The work is dangerous and selective. Known for a strong culture of loyalty.

Structural Ironworker
Ironworkers
Site ↗
Ironworkers Local 44
Buffalo · Western New York

Western New York's ironworkers local. Active in bridge, structural, and industrial construction in the region. Smaller market than NYC but solid wages and benefits.

Structural IronworkerOrnamental IronworkerReinforcing Ironworker
UBC Local 157
New York City · Manhattan and the Bronx

Part of the NYC District Council of Carpenters — major commercial construction throughout the city. One of the largest carpenter jurisdictions in the country. Entry is through the NYCDCC apprenticeship.

CarpenterDrywall Installer
UBC Local 608
New York City · Manhattan

Manhattan-based UBC local known for finish work on commercial and institutional projects. Active in high-end commercial interiors and institutional facilities throughout the borough.

CarpenterFloor Layer
IUOE Local 15
New York City · New York City and Long Island

New York's heavy equipment operators local. Active in major infrastructure projects throughout the city and Long Island. Crane operator work in NYC requires additional licensing — Local 15 operators are in demand.

Heavy Equipment OperatorCrane Operator
(212) 255-7480
LIUNA Local 78
New York City · Manhattan, Brooklyn, Queens, Bronx, Staten Island

New York City's primary hazardous abatement laborers local. Asbestos, lead, and environmental work in NYC requires specific certification and Local 78 membership. Pays substantially more than general labor.

Construction LaborerAsbestos/Hazmat Worker
BAC Local 1 NY
New York City · New York City

New York's bricklayers local covering all masonry classifications including terrazzo, which is extremely rare and well-compensated. Active in commercial construction and institutional projects.

BricklayerMasonTile SetterTerrazzo Worker
IUPAT Local 9
New York City · New York City

New York's painters local. Active in commercial painting, high-rise exterior work, and glazier work. Industrial painting and bridge painting pay significant premiums in the metro area.

PainterDrywall FinisherGlazier

Ohio

SMART Local 18
Cleveland · Northeastern Ohio

Cleveland area sheet metal local with a long history in the region. Active in commercial HVAC, industrial, and fabrication work. Strong training program.

Sheet Metal WorkerHVAC Installer

Oregon

IBEW Local 48
Portland · Multnomah, Clackamas, Yamhill, Washington, and Columbia counties

The dominant inside wireman local for the Portland metro. Active in commercial, industrial, and data center construction with significant renewable energy project work.

ElectricianTeledata Technician
(503) 288-7342
Ironworkers
Site ↗
Ironworkers Local 28
Portland · Oregon and Southwest Washington

Oregon and SW Washington's ironworkers local. Active in both structural and reinforcing work. Significant bridge and infrastructure work in the region.

Structural IronworkerReinforcing Ironworker

Pennsylvania

Boilermakers
Site ↗
Boilermakers Local 154
Pittsburgh · Western Pennsylvania

Pittsburgh's boilermakers lodge with a long industrial history in the region. Active in power generation and industrial maintenance. Western PA's industrial base keeps steady work available.

BoilermakerWelder
Next step

Find your JATC.

The Joint Apprenticeship Training Committee is where you actually apply. Apprenticeship.gov maintains a database of every registered program. Search by trade and ZIP code — it's the most direct path.

Not sure which trade?

Take the 10-question Trade Match Quiz to narrow it down before you commit to an apprenticeship application.

Trade Match Quiz →
Read the trade pages.

Each trade page covers wages, the apprenticeship path, union affiliations, and what the recruiter won't tell you.

All trades →
Pre-apprenticeship programs.

Pre-apprenticeship programs improve your odds at competitive locals and sometimes guarantee an interview. Browse schools by state.

Schools directory →