Last updated 2026-08-20
TL;DR
Delaware does not issue a license called pipefitter. If you install potable water or HVACR systems, you need a plumber or HVACR license from the Division of Professional Regulation under Title 24, Chapter 18. Most people get there through a 4 to 5 year registered apprenticeship. Industrial process piping can sit outside that statute. Confirm fees, exams, and your exact work scope with the Board before you apply.
Do you need a license for pipefitter in Delaware?
You do not need a Delaware license with the word pipefitter on it. The state does not print that card. You do need a plumber license or an HVACR license if the work matches plumbing services or HVACR services in Title 24, Chapter 18 of the Delaware Code. Process piping, shop fabrication, and a lot of industrial fit-up sit outside that statute, but you should not guess. Ask the Board in writing before you bid the job.[1][2]
People type pipefitter Delaware into a search bar because nearby states treat the trade like a titled occupation. Delaware does not. The Division of Professional Regulation lists master and journeyperson plumber licenses, plus master and journeyperson HVACR licenses, including restricted HVACR classes. Pipefitter is not on that list.[2]
That still does not mean you can hang a shingle and pull permits. Plumbing permits and HVACR permits run through licensed people. Weld steam in a plant under the owner's program and you may never touch a DPR card. Rough in domestic water in a Dover walk-up and you will.
Helpers and first-year apprentices work under a contractor. You are not the licensee. Stay in that lane until someone puts you on an exam list.
I would not spend money on a Delaware pipefitter license course you found in an ad. There is no such state exam. Spend the time getting into a registered apprenticeship, or get your hours documented for the plumber or HVACR path that matches the work you actually want.
What license does Delaware actually issue instead of a pipefitter card?
Delaware issues plumber and HVACR licenses through the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners. That board sits in the Division of Professional Regulation. The chapter that creates it is Title 24, Chapter 18. The statute's stated primary objective is "to protect the general public." It is not a jobs program and it is not a union card.[1][3]
The Board's rules live in 24 DE Admin. Code 1800. That file is where application mechanics, exams, and the paper the Board wants actually sit. Read it before you upload anything to DELPROS.[3]
A journeyperson plumber license is the card for people who install and service the pipes and fixtures that bring water into a building and carry liquid waste out. A master plumber is the usual name on a plumbing permit. HVACR journeyperson and master licenses cover heating, ventilation, air conditioning, and refrigeration work, including a lot of hydronic and refrigerant piping. Restricted HVACR classes exist for narrower scopes. Confirm the current class list on the DPR new license page, because the Board can adjust categories.[2][3]
None of those titles say pipefitter. Steamfitters and industrial pipefitters in Delaware usually hold an apprenticeship completion certificate, welding quals, and a contractor's employment record. Some later sit for the HVACR exam once they start doing comfort systems for the public.
If you want a state that prints more trade-specific paper, read the pipefitter license in Connecticut guide next. Connecticut's structure is not Delaware's. Do not import their checklist.
| Route | Delaware state card | Typical time | What it actually covers |
|---|---|---|---|
| Registered pipefitter apprenticeship | None titled pipefitter | 4 to 5 years | Industrial, mechanical, shop, and many installs under a contractor |
| Journeyperson plumber | Yes | After approved hours plus exam | Water supply and drain, waste, vent in buildings |
| Master plumber | Yes | Extra time after journeyperson | Permit holder for plumbing services |
| Journeyperson HVACR | Yes | After approved hours plus exam | HVACR systems, including many refrigerant and hydronic lines |
| Helper on a crew | No | Immediate | Labor under a licensed or contracting employer |
How do you become a pipefitter in Delaware?
The real path is a registered apprenticeship, not a state pipefitter exam. A contractor or a joint apprenticeship committee hires or indentures you, you log paid on-the-job hours, and you sit related classroom instruction. Registered apprenticeships combine paid work and related instruction. Delaware registers programs through the Department of Labor apprenticeship and training unit.[7][13]
Most people enter one of three ways.
Union. UA locals cover plumbers, pipefitters, and HVAC techs in this market. Local 74 is the name you will hear in Delaware. I am not going to pretend I know this year's selection window, drug screen vendor, or first-year package. Call the hall and ask for the JATC dates. Bring a high school diploma or GED, a valid license to drive, and patience.
Open shop. Contractor associations and individual mechanical contractors sponsor registered programs. Same federal apprenticeship rules apply when the program is registered. The labor standards sit in 29 CFR Part 29. That is dry reading, but it is why a real program has written standards and a wage schedule instead of a handshake.[11]
Direct hire helper. You start carrying fittings, then the shop folds you into an apprenticeship once they trust you. This is common. It is also how people get stuck for three years with no related instruction. If the contractor will not register you, you are not on a license path. You are cheap labor. Leave if that does not change.
BLS is blunt about entry. "Plumbers, pipefitters, and steamfitters typically need a high school diploma or equivalent." That is the floor. Algebra helps more than another certificate mill course.[4]
Apply to every registered program that will take a complete packet this cycle, then take the first real offer. Waiting a year for a better hall while you sit on a couch is a waste.
How long does pipefitter take in Delaware?
Plan on 4 to 5 years. The Bureau of Labor Statistics states, "Apprenticeships typically last 4 to 5 years." That national range matches what Delaware shops actually run. Nobody has a clean public dataset of average time-to-journeyman for Delaware pipefitters alone. The closest official language is that BLS range plus the hour count in your program's approved standards.[4]
A standard registered program is built on about 2,000 on-the-job hours per year plus related instruction. Four years is roughly 8,000 hours. Five-year pipefitter programs land near 10,000 hours. Your program standards, not a blog, control the count. Confirm the hours in the packet the Delaware Department of Labor approved for that sponsor.[7][11]
After that, if you want a DPR plumber or HVACR journeyperson card, you still have an application and an exam. Processing time is not something I will guess. DPR does not owe you a two-week turnaround. Check DELPROS for your status and do not schedule a job that depends on a card you do not hold.
Master licenses take more documented time after journeyperson. The exact extra years belong in the current statute and 24 DE Admin. Code 1800, not in my memory of an old reprint. Read those two files the week you apply.[1][3]
Military pipefitters and out-of-state journeyworkers sometimes shorten the Delaware paper path when the Board accepts equivalent experience. That is a Board decision. Bring transcripts, hour affidavits, and license verifications. Do not assume a pipefitter license in California or a pipefitter license in Arizona drops into DELPROS automatically.
Helpers can be on a job the week they pass a drug test. That is not the same as finishing the trade.
How much does pipefitter cost in Delaware?
The training path is usually paid work, not tuition in the college sense. Registered apprentices earn a progressive wage. That is the point of the model on apprenticeship.gov.[13]
What you actually spend is tools, travel, exam fees, and time.
License and exam fees change. I am not going to invent a current DPR fee. The Division of Professional Regulation posts the amount on its plumber and HVACR pages. Confirm it the week you apply. Third-party exam vendors charge their own seat fee on top.[2]
A first-year tool dump is where people light money on fire. You need wraparound shades, a 25-foot tape, channel locks, a 10-inch and a 14-inch pipe wrench, a tubing cutter, and a padlock for the gang box. You do not need a full orbital welding rig in month two. If you want a pre-sorted UA versus field kit comparison, PipefitterPath keeps a $129 one-time kit guide. You can finish this path without it.
Related instruction may be free inside a JATC or billed by a school. Ask the sponsor who pays for books. OSHA-10 is often required by the contractor even when the state does not mandate it for licensure. The OSHA Outreach page explains that 10-hour card. Budget a Saturday and the course fee your shop names.[14]
Contract for yourself and Delaware's Division of Revenue expects a state business license for people in business in the state. That is separate from the Board card. Confirm the current license tax on the Division of Revenue business license page. Do not treat an old forum number as current.[10][12]
Wages sit on the other side of the same question. The May 2023 national median wage for plumbers, pipefitters, and steamfitters was $61,550, according to the Bureau of Labor Statistics. Delaware's own OEWS estimate moves with sample size. Read the Delaware OEWS table rather than a Facebook screenshot. Public works jobs pay the published prevailing wage for the plumber/pipefitter classification. Those rates get reissued. Use the current Delaware DOL schedule.[4][5][6][8]
Do not finance a long private welding school to get into pipefitting in Delaware. Get employed first. Let the shop pay for the coupons you actually weld.
What does the Delaware plumbing and HVACR board actually regulate?
The Board regulates people who offer plumbing services and HVACR services to the public in Delaware. Title 24, Chapter 18 is the statute. 24 DE Admin. Code 1800 is the rulebook. DPR staff handle applications through DELPROS.[1][2][3]
Plumbing services, in plain terms, are the water in and the waste out. HVACR services are comfort heating and cooling, ventilation, and refrigeration. If your daily work is those systems, you are in the Board's world. If your daily work is process pipe in a plant with an owner specification, you may only see the Board if you also do the domestic water or the chiller yard that serves occupied space.
The Board can discipline licensees. That is the enforcement side of protecting the public. Unlicensed practice in a licensed scope is how people get cease-and-desist letters. I would not test that.
The Board does not set your wage, does not run the union, and does not issue welding stamps. It also does not publish a secret pipefitter Delaware roster. A school that tells you otherwise is selling you something. Walk.
Is industrial pipefitting licensed differently from plumbing in Delaware?
Yes, in practice. Industrial pipefitting is usually controlled by the owner, the engineer of record, and the contract specification, not by a pipefitter license. You will see ASME B31 language, owner safety orientations, and welding procedure qualifications. None of that is a DPR card.
The moment the same crew ties into potable water, a backflow assembly, or a comfort HVACR system, Chapter 18 can apply. That is the line. Get it in writing from the Board or from the building official on the permit when the job is mixed.[1]
Refrigerant work is a federal overlay. EPA states that Section 608 of the Clean Air Act "prohibits the knowing release of refrigerant during the maintenance, service, repair, or disposal of air-conditioning and refrigeration equipment," and technicians need Section 608 certification for covered work. That card is federal. Delaware does not replace it.[9]
People bounce from a pipefitter license in Colorado page to Delaware and expect a steamfitter class. Colorado's structure is not a template here. Read the Delaware chapter, then ask DPR about the exact loop you are welding.
Do you need a Delaware business license to contract pipe work?
If you are in business in Delaware, you generally need a state business license from the Division of Revenue. That is a tax license under Title 30, not a skill license. Employees on a W-2 do not get one for their personal trade. Owners and independents do. Confirm the category and the current tax on the Division of Revenue business license page.[10][12]
A business license does not let you pull a plumbing permit. The master license does, when the work is in scope.
Cities and counties can add contractor registration or permit rules. Wilmington and New Castle County are the usual extra stops. I will not invent their current fees. Call the permit counter for the job address.
Out-of-state contractors love to skip this stack. Then the first inspection stalls. File the Revenue license, confirm the Board scope, then pull the permit in the right name.
What exams and paper should you expect?
For the apprenticeship: a high school diploma or GED, a valid driver license, a drug screen, sometimes a math quiz, and the indenture agreement. Federal registered apprenticeship rules require written standards and related instruction.[11][13]
For DPR plumber or HVACR licensure: an application in DELPROS, proof of experience or apprenticeship completion, any Board-required references, an exam if you are not on an endorsement path, and the fee posted that week. Use the new license page as the checklist, not a forum thread from 2019.[2][3]
Keep paper you can hand a board investigator. Pay stubs. Hour logs signed by the contractor. School transcripts. License verifications from other states. Boards believe documents. They do not believe vibes.
Welding certifications are employer paper. They expire when the code or the contractor says they expire. They are not a substitute for a plumber license on potable water.
Comparing a heavier exam state? The how to start pipefitter in california walkthrough shows what a contractor-license world looks like. Delaware is lighter on the trade title and stricter about not freelancing plumbing without the right card.
How do Delaware wages and prevailing wage work for pipefitters?
There is no single Delaware pipefitter wage written into the license law. Your check comes from the contractor, the union agreement, or the prevailing wage determination on a public job.
The May 2023 national median wage for plumbers, pipefitters, and steamfitters was $61,550, according to the Bureau of Labor Statistics. That is a national median, not a Wilmington guarantee. BLS also publishes a Delaware OEWS estimate for the occupation. Treat small-state estimates as a range, not a promise. Sample sizes here are thin, and the error band is wider than people admit in comment threads.[4][5][6]
Public works in Delaware pay prevailing wage by trade and county. The Department of Labor, Division of Industrial Affairs, publishes those rates and enforces the prevailing wage law. Plumber and pipefitter classifications appear on that schedule. Download the current year. Last year's PDF is how people underbid and then lose.[8]
Take a registered apprentice slot with a real shop over a helper rate that never steps up. The step rate is the whole economic case for staying four years.
What should a first-year apprentice actually buy?
Buy used if it still reads true. A cheap measuring tool that lies will cost you a joint.
Start with PPE your employer does not issue, a tape, two pipe wrenches, channel locks, a tubing cutter, a striker, a padlock, and a notebook. Add a level and a wraparound. Stop there for 90 days.
Skip the full stainless orbital package, the laser scanner, and the branded backpack that costs more than your first set of boots. Shops that need orbital will hand you their machine or tell you exactly which head to buy.
OSHA-10 is worth taking if the contractor wants it. It is not a Delaware pipefitter license.[14]
I would rather see you spend gas money getting to a job that pays overtime than blow a tax refund on tools you will outgrow in six months.
How does Delaware compare to other states on pipefitter paper?
Delaware is a small-state, board-license model for plumbing and HVACR, and a no-title model for pipefitter. Alabama prints different paper. So does Arkansas. Move, and you start over with that board. See pipefitter license in alabama and pipefitter license in arkansas before you assume hours transfer.
The how to start as a pipefitter in colorado path is another useful contrast, because Colorado's construction licensing sits in a different agency stack.
Reciprocity is a Board yes or no, not a right. Ask DPR about endorsement and send the other state's verification form. Bring more affidavits than you think you need. Thin packets stall.
What should you confirm with the board before you apply?
Confirm four things in writing.
One, whether your work is plumbing services, HVACR services, or neither. Two, which license class matches that work. Three, the current application fee, exam vendor, and required attachments. Four, whether your out-of-state license or military training counts.[2][3]
Use DELPROS. Use the Board email on the DPR plumber site. Keep the reply.
No approval timeline is promised here. Boards move when they move.
PipefitterPath is an independent publisher, not a law firm and not a service company. The kit list we maintain is at /start. This article still works if you never click that.
Frequently asked questions
Do you need a license for pipefitter in Delaware?
No state license is titled pipefitter. You need a plumber or HVACR license if the work is plumbing services or HVACR services under Title 24, Chapter 18. Industrial process piping often sits outside that statute. Confirm the exact scope with the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners before you bid or advertise.
How much does pipefitter cost in Delaware?
A registered apprenticeship is paid work, so the big cost is time, tools, travel, and later exam fees. DPR posts current plumber and HVACR application fees. Do not use an old number. A first-year hand-tool set can stay modest if you skip orbital gear. Contracting also needs a Division of Revenue business license. Confirm that tax on the Revenue site.
How long does pipefitter take in Delaware?
Plan on 4 to 5 years. BLS says apprenticeships typically last 4 to 5 years, which matches Delaware shops. That is roughly 8,000 to 10,000 on-the-job hours plus related instruction. A DPR journeyperson plumber or HVACR card, if you need one, comes after the Board accepts your hours and you pass its exam. Confirm current experience rules with DPR.
Does Delaware license steamfitters by that name?
No. Steamfitting is not a separate DPR title. Steam and process work usually run under an apprenticeship, owner specs, and welding quals. If the same crew also does potable water or comfort HVACR, Chapter 18 can still apply. Ask the Board in writing when a job mixes industrial pipe with building systems.
Can I work as a pipefitter helper in Delaware with no card?
Yes, as labor under a contractor. You are not the licensee and you should not advertise licensed plumbing or HVACR services. Helpers can start after a hire packet and a drug screen. That is not a shortcut to journeyperson status. If the shop will not indenture you into a registered program, you are not on a paper path.
Does a Maryland, Pennsylvania, or New Jersey plumber license transfer to Delaware?
Not automatically. Endorsement is a Board decision under Title 24, Chapter 18 and 24 DE Admin. Code 1800. Send official verifications, hour affidavits, and any exam history through DELPROS. Do not schedule Delaware permit work on another state's card. Confirm current endorsement rules with DPR before you move a truck.
Is UA Local 74 required to work as a pipefitter in Delaware?
No. The union is a common path, not a state mandate. Open-shop registered apprenticeships and direct-hire shops also run work. Public jobs still follow prevailing wage and contractor rules either way. Call the JATC for current intake dates if you want that hall. Call DOL apprenticeship staff if you want a list of registered sponsors.
What is the difference between a journeyperson and a master plumber in Delaware?
A journeyperson card is the working license after approved training or equivalent experience plus the Board exam. A master card is the usual permit holder for plumbing services and needs extra documented time after journeyperson. Read the current statute and 24 DE Admin. Code 1800 for the exact extra years. Confirm the class you need before you apply.
Do I need EPA Section 608 to fit pipe in Delaware?
Only if you maintain, service, repair, or dispose of equipment that can release refrigerant. That is federal law under Section 608 of the Clean Air Act, not a Delaware pipefitter license. Hydronic or process work with no regulated refrigerant does not create a 608 duty by itself. Get the EPA card if your shop puts you on comfort cooling or racks.
How do I renew a Delaware plumber or HVACR license?
Renewal runs through DPR and DELPROS on the cycle the Board sets. Requirements and fees change. Confirm the current renewal window, fee, and any continuing education on the Board's pages before your card lapses. A lapsed card is not a pipefitter problem. It is an unlicensed-practice problem if you keep doing covered work.
Do welding certifications replace a Delaware plumber license?
No. ASME or contractor welding quals prove you can make a sound joint under a procedure. They do not authorize potable water or HVACR services under Title 24, Chapter 18. Keep both sets of paper if you do mixed work. The welding stamp lives with the employer or the code. The Board card lives with you.
Does New Castle County or Wilmington issue a separate pipefitter license?
They can add contractor registration and they do issue building permits. They do not replace the state plumber or HVACR license for covered work. Call the permit counter for the job address and ask whose name must be on the application. Confirm any local fee there. Do not treat a city business tax receipt as a trade license.
Sources
- Delaware Code, Title 24, Chapter 18, Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners: Delaware regulates plumbing and HVACR services under Title 24, Chapter 18, and does not create a standalone pipefitter license title.
- Delaware Division of Professional Regulation, Plumbing/HVACR new license page: DPR applications cover master and journeyperson plumber and HVACR classes, not a pipefitter class, and current fees must be confirmed there.
- Delaware Administrative Code, 24 DE Admin. Code 1800: Board rules set application, examination, and licensure mechanics for plumbers and HVACR technicians.
- U.S. Bureau of Labor Statistics, Occupational Outlook Handbook, Plumbers, Pipefitters, and Steamfitters: Apprenticeships typically last 4 to 5 years, and workers typically need a high school diploma or equivalent.
- U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2023, SOC 47-2152: The May 2023 national median annual wage for plumbers, pipefitters, and steamfitters was $61,550.
- U.S. Bureau of Labor Statistics, May OEWS estimates for Delaware: BLS publishes Delaware wage estimates for construction occupations, including plumbers, pipefitters, and steamfitters.
- Delaware Department of Labor, Apprenticeship and Training: Delaware registers apprenticeship programs through the Department of Labor apprenticeship and training unit.
- Delaware Department of Labor, Prevailing Wage: Delaware publishes and enforces prevailing wage rates for public works trades, including plumber and pipefitter classifications.
- Delaware Division of Revenue, Business Licenses: Persons in business in Delaware generally need a state business license from the Division of Revenue.
- eCFR, 29 CFR Part 29, Labor Standards for the Registration of Apprenticeship Programs: Registered apprenticeship programs must meet federal labor standards, including written program standards.
- Delaware Code, Title 30, Chapter 21, General Provisions Concerning Licenses: Delaware's business license framework sits in Title 30 and is separate from a professional trade license.
- U.S. Department of Labor, Apprenticeship.gov, Become an apprentice: Registered apprenticeships combine paid on-the-job work with related classroom instruction.
- Occupational Safety and Health Administration, Outreach Training Program: OSHA Outreach 10-hour training is a contractor-driven safety card, not a Delaware pipefitter license.