Union vs. non-union across the trades: where the premium is real

The union question generates more heat than almost anything else in the trades, so let's keep this empirical. Union membership changes four concrete things: how you're paid, how you're trained, how you find work, and what happens to your retirement. Whether those changes are worth it depends heavily on your trade, your metro, and the stage of your career.

What the state wage data shows

BLS doesn't publish union-vs-non-union wages by state and occupation, but the geography is suggestive. Look at the top of the electrician wage table from our salary deep-dive: Oregon ($97,320), Washington ($96,530), and Illinois ($96,360) lead the nation — three states with high construction union density — while the bottom ten is dominated by right-to-work states in the South, with Arkansas at $49,420. Cost of living explains part of that spread. It does not explain Illinois, where a moderate cost of living coexists with near-Oregon wages; IBEW market share in Chicago is the standard explanation, and it's hard to argue with.

At the national level, BLS union data has shown for decades that unionized construction workers earn meaningfully more in wages — with the gap widening further when you count employer-paid health and pension contributions, which are standard in union packages and variable everywhere else.

The four concrete differences

The honest case for open shop

It would be lazy to write this as union-always-wins. The non-union path is genuinely better in some circumstances:

• Speed of entry. If the local JATC window is months away and an open-shop contractor will hire you Monday, a year of real hours beats a year of waiting. (See the timeline article on why the entry phase dominates.)
• Low-density markets. In much of the South and rural West, union market share in residential and light commercial work is small. The premium can't reach you if signatory contractors aren't bidding the work you'd do.
• The contractor track. If your plan is to run your own shop within a few years, open-shop experience often maps more directly onto estimating, customer relationships, and running small crews.
• Dispatch-list reality. In a downturn, being number 40 on the out-of-work list is its own kind of unemployment. Open-shop workers with strong individual reputations sometimes ride out slowdowns better.

How it differs by trade

• Elevator mechanics: effectively a union trade — the IUEC apprenticeship is the path, which is why it's both the best-paid and hardest-to-enter trade we cover.
• Electricians and pipefitters: strong union infrastructure in commercial/industrial work; residential is largely open shop almost everywhere.
• Plumbers and HVAC: mixed; service work skews open shop, large commercial skews union.
• Cosmetologists and EMTs: the union question mostly doesn't apply (salon work) or runs through public-sector unions (fire-based EMS), which is a different conversation.