πŸŽ“ Plumbing apprenticeships by state

Plumbing Apprenticeships in Delaware: Programs, Requirements and How to Apply

Founder, HVACHires
Last verified September 2026

The plumbing apprenticeship that counts toward licensure in Delaware meets federal standards: Delaware is a State Apprenticeship Agency state per the U.S. DOL, and its Department of Labor runs a federally approved apprenticeship program.

There is no apprentice license: Delaware licenses plumbing at the master level only, so you apprentice under the supervision of a master plumber who employs you or works full time for the same business.

The United Association local our research confirmed is Local 74, and the journeyman certificate from an apprenticeship meeting federal standards starts one of the two routes to the Master Plumber license.

Verify before you rely on this

Licensing rules change by statute, board rule and local ordinance, and this page is career information, not legal advice. Confirm every requirement with the licensing board (or, where licensing is local, the city or county) before you apply, schedule an exam, count hours or bid a job. In Delaware, that is the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners (Division of Professional Regulation).

At a glance

Apprenticeship agency

Delaware is a State Apprenticeship Agency state per the U.S. Department of Labor; the Delaware Department of Labor runs a federally approved apprenticeship program β€” the example the Board's HVACR licensure page gives of the programs whose journeyman certificate it accepts.

Apprentice registration

No apprentice license.

Delaware licenses plumbing at the master level only: apprentices work under the supervision of a master plumber who employs them or works full time for the same business.

Union programs

UA Local 74 (Wilmington, office in Newark) is the UA plumbers and pipefitters local for Delaware; the UA says its apprenticeships typically last five years and cover plumbing.

Merit-shop programs

Not established in our research: no registered PHCC, ABC or employer plumbing apprenticeship was verified in Delaware.

Ask the Delaware Department of Labor what is currently registered.

Hours toward a license

One route to Master Plumber eligibility: a journeyman certificate from an apprenticeship meeting federal standards plus 2 years under a master plumber.

The other: 7 years under a master plumber plus the apprenticeship equivalency test β€” and the master exam either way.

Where to start

Ask UA Local 74 about the union route, or ask Delaware employers whether they sponsor registered programs; confirm the program is registered and that a master plumber will supervise you before you commit.

Who offers plumbing apprenticeships in Delaware?

Registered programs are registered either by the U.S. Department of Labor's Office of Apprenticeship or by a recognized State Apprenticeship Agency (SAA) acting for DOL, and Delaware sits on the state side of that split: Delaware is an SAA state per the U.S. Department of Labor, and the Delaware Department of Labor runs a federally approved apprenticeship program β€” the example the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners gives on its HVACR licensure page of the programs whose journeyman certificate it accepts.

The plumbing statute's own wording sets the license bar: Master Plumber eligibility takes a journeyman certificate from an apprenticeship meeting federal standards β€” confirm with the Board that your program's certificate qualifies.

On the program side, the United Association local our research confirmed for Delaware is Local 74, the UA's plumbers and pipefitters local; association and employer programs are covered under merit shop below.

And whatever program you train in, the statute's supervision rule applies: as an apprentice you may work unlicensed only under the supervision of a master plumber who employs you or works full time for the same business, because only a licensed master plumber may provide plumbing services in Delaware.

Do Delaware apprentices need to register or hold a license?

πŸ“œ Del. Code tit. 24, ch. 18, subch. II

Not a license: Delaware licenses plumbing at the master level only.

Under the state code's plumbing subchapter, only a licensed master plumber may provide plumbing services, and the statute's supervision exception is what covers you as an apprentice: apprentices and journeymen may work without a license of their own when the master plumber supervising them is their employer or works full time for the same business entity.

The line matters, because unlicensed plumbing outside that supervision carries a fine of $1,500-$3,000 for a first offense and $3,000-$6,000 for later offenses.

What you join instead is the registered apprenticeship itself, registered on the State Apprenticeship Agency side described above.

Completing a registered program earns a certificate from the registration agency β€” a credential toward the license, not a license itself.

β€œThe individual is an apprentice, journeyman, mechanic, or other person providing such services under the supervision of a master plumber who is the individual’s employer or who is employed full time by the same business entity as the individual;”

Union programs and locals in Delaware

The United Association local our research confirmed for Delaware is Local 74 β€” the UA's plumbers and pipefitters local for the state (Wilmington, office in Newark).

Nationally, the UA says its apprenticeships are registered with the Department of Labor, typically last five years, and cover plumbing, pipefitting, HVACR, welding and fire protection, which makes a UA hall the natural first ask for union plumbing training in Delaware.

Scope matters, though: our research verified Local 74 as Delaware's UA local, not the details of its training program, so ask the hall directly what it currently registers, when it takes applications, and how its program is structured.

β€œUA apprenticeships typically last five years and cover a range of disciplines.”

Are there merit-shop or employer plumbing programs in Delaware?

Our research did not verify a registered plumbing apprenticeship run by a Delaware PHCC or ABC chapter, or by an individual Delaware employer, so treat the national associations as places to ask rather than confirmed options.

Nationally, Associated Builders and Contractors describes itself as founded on the merit shop philosophy and reports more than 24,000 members, and PHCC β€” the Plumbing-Heating-Cooling Contractors Association β€” offers apprenticeship content through an online learning academy.

If a Delaware contractor offers to train you, the test is registration: registered programs are registered by DOL's Office of Apprenticeship or by a recognized State Apprenticeship Agency acting for DOL, so ask who registered the program and confirm it with the Delaware Department of Labor before you commit.

Which Delaware schools and related-instruction providers deliver the classroom hours?

Registered apprenticeship pairs on-the-job learning with related technical instruction, and programs structure the term differently: time-based, with at least 2,000 hours of on-the-job learning, competency-based, or a hybrid of the two.

The Department of Labor recommends a minimum of 144 hours of related technical instruction for each year of apprenticeship β€” a recommendation, not a requirement β€” and each program's registered standards set what it actually asks of you.

On the Delaware-specific side, the one school connection our research confirmed sits on the licensing side of the house: the statute sends the apprenticeship equivalency (by-pass) test β€” the alternate route to Master Plumber eligibility β€” to a Delaware vocational-technical school, and the Board's examinations page names Associated Builders and Contractors Delaware (ABC Delaware) as the by-pass exam's administrator.

Which Delaware community colleges, vocational-technical districts or union training centers deliver plumbing related instruction was not established by our research, so ask each sponsor where its classroom hours happen.

β€œA minimum of 144 hours for each year of apprenticeship is recommended.”

How do you apply for a plumbing apprenticeship in Delaware?

You apply to whoever sponsors the program: for the union route, ask Local 74 what it currently registers and when it takes applications; for an employer program, apply to the employer and ask whether the program is registered.

You get hired into the program and learn under the supervision of a master plumber who employs you or works full time for the same business β€” no apprentice license comes first, because Delaware licenses plumbing at the master level only.

Federal registered-apprenticeship rules set the floor: an apprentice must be at least 16 unless a higher minimum age is set by law, there is no federal maximum age, and registered programs may not discriminate against applicants 40 or older; a probationary period cannot exceed 25 percent of the program length or 1 year, whichever is shorter; and pay must follow a progressively increasing schedule tied to skill.

Where the apprenticeship leads β€” the two routes to Master Plumber eligibility β€” is the next section, and our guide to how to get a plumbing apprenticeship covers the application in depth.

β€œA progressively increasing schedule of wages to be paid to the apprentice consistent with the skill acquired.”

From plumbing apprentice to Master Plumber: how the apprenticeship counts

πŸ“œ Del. Code tit. 24, ch. 18, subch. II

The apprenticeship feeds the only plumbing license the Board issues: the Master Plumber.

The statute gives Master Plumber applicants two routes: a journeyman certificate from an apprenticeship meeting federal standards plus 2 years under a master plumber, or 7 years under the supervision of a master plumber β€” or a plumber holding a similar level of licensure in another state β€” plus successful completion of the apprenticeship equivalency test; either way, you must also pass the master exam.

Route one's certificate is the apprenticeship's output, and the statute's wording for it β€” meeting federal standards β€” is the bar; confirm with the Board that your program's certificate qualifies.

Fees, the master exam's administrator, renewal and continuing education are the license's territory, not the apprenticeship's β€” our Delaware plumbing license requirements guide has those rules.

What This Page Does, and Doesn’t, Cover

This page summarizes the Delaware board pages, statutes, rules and other sources listed below, as read for this state-by-state plumbing apprenticeships series, current as of September 2026.

It is not a substitute for the instructions the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners (Division of Professional Regulation) publishes.

For the rest of the picture in Delaware, see plumbing licensing in Delaware and HVAC apprenticeships in Delaware.

Frequently Asked Questions

Do you need a license to be a plumbing apprentice in Delaware?

No. Delaware licenses plumbing at the master level only, and the statute's supervision exception covers apprentices: you may work without a license of your own under the supervision of a master plumber who employs you or works full time for the same business entity.

Working outside that supervision is unlicensed plumbing, which carries a fine of $1,500-$3,000 for a first offense and $3,000-$6,000 for later offenses.

What you join on the training side is a registered apprenticeship program β€” confirm any program you are offered is registered.

Is there a union plumbing apprenticeship in Delaware?

The United Association local our research confirmed for Delaware is Local 74, the UA's plumbers and pipefitters local (Wilmington, office in Newark).

The UA says its apprenticeships are registered with the Department of Labor, typically last five years and cover plumbing among other trades.

Our research did not verify the details of Local 74's own training program, so ask the hall what it currently registers and when it takes applications.

How long is a plumbing apprenticeship in Delaware?

Our research did not confirm a Delaware-set length for plumbing apprenticeships.

Federally, an apprenticeable occupation requires at least 2,000 hours of on-the-job learning, programs may be time-based, competency-based or hybrid, and the Department of Labor recommends a minimum of 144 hours of related instruction per year β€” a recommendation, not a requirement.

UA apprenticeships, the UA says, typically last five years; each program's registered standards set the actual term.

How much does a plumbing apprentice get paid in Delaware?

Registered programs must pay apprentices a progressively increasing wage schedule tied to the skill acquired, and the entry wage may not fall below the FLSA minimum wage where it applies; the federal rule sets no percentage steps, so each program's standards set its own scale.

Our research verified no Delaware-specific apprentice wage figures, so ask each program for its current schedule.

Our plumbing apprentice pay guide has the national picture.

Does a Delaware plumbing apprenticeship count toward the Master Plumber license?

Yes β€” it is one of the two routes.

A journeyman certificate from an apprenticeship meeting federal standards plus 2 years under a master plumber is one way to reach Master Plumber eligibility; the other is 7 years under a master plumber plus passing the apprenticeship equivalency test at a Delaware vocational-technical school.

Either way, you must also pass the master exam.

Our Delaware plumbing license page has the full requirements.

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Sources

Sourced from the documents listed above.

Verified September 2026.

This is career information, not legal advice.

Confirm current rules with the Delaware Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners (Division of Professional Regulation).