How do I list apprentice plumbing hours on a resume?

Write them as a running total with the year, because hours are the currency of a trade still in progress: for example, 4,800 of 8,000 documented hours toward journeyman, plus the classroom hours completed. Name the program or the local that holds your hours, say what the schedule is, and give your expected sit date for the exam. Then back the hours with the work itself - the systems you have roughed, the fixtures you have set, the service calls you have run with a journeyman - because the hours prove time and the work proves what you can be sent to do unsupervised.

What matters most to a plumbing company hiring a service plumber?

Three things, in this order: whether you can be sent out alone, whether the work comes back, and how customers react to you. So the resume should show the license tier that lets you work unsupervised, a callback or warranty-return figure you can defend, and evidence that you handle homeowners well - explaining options, documenting with photos, pricing from a book, and collecting on site. Service companies also look hard at your truck discipline: stocking, inventory accuracy, and whether you complete the call the first time rather than returning for a part.

Plumber Resume Guide: License Tier, Permits, Callback Rate

Q: What should a plumber resume include?

Start with a license block under your name: your tier (apprentice, journeyman or master), the state or municipality that issued it, the license number and expiration, documented apprenticeship hours if you are still accumulating them, and the add-on certifications that let you take specific work - backflow prevention assembly tester, medical gas installer, gas fitting, cross-connection control. Then say which plumbing you do: service and repair, residential new construction, commercial, or industrial and process piping. Then the systems and materials you have actually worked, the permits you pulled and the inspections you passed, and your service numbers - calls per day, first-visit completion, callback rate.

A practical guide from the team behind PlainResume, the free resume builder.

The short answer: A plumbing resume answers one question first — can this person be sent out alone, and on what? Put your tier (apprentice, journeyman, master), the issuing state and your add-on certifications in a block under your name, then say whether you do service, new construction or commercial, then prove it with systems worked, permits pulled, inspections passed first time and your callback rate. Hours if you're coming up; outcomes if you're not.

Plumbing is licensed by state and sometimes by city, the tiers carry real legal authority, and a service company and a new-construction contractor are hiring for almost opposite skills. A resume that reads "experienced plumber, hard worker" throws all of that away in one line.

The license block: tier, state, and who can pull the permit

✗ "Licensed plumber with many years of residential and commercial experience and strong knowledge of plumbing codes."

✓ "Journeyman Plumber — Ohio Lic. #JP-00000, exp. 06/2027 · Backflow Prevention Assembly Tester (ASSE 5110, 2022) · Medical Gas Installer (ASSE 6010, 2024) · OSHA 30 · 9,200 documented hours; sitting for the master exam Feb 2027"

Tier, jurisdiction, number and expiration, plus the certifications that unlock specific work: backflow testing, medical gas, gas fitting, cross-connection control, confined space. The master license deserves its own mention because it changes what the company can do — a master can pull permits and be the licensed holder of record, which is the difference between hiring a tech and hiring capacity. In-progress credentials belong on the page with a sit date, the way the certifications guide sets out.

Service, new construction, or commercial — say which

Service and repair: diagnosis under time pressure, homeowner communication, flat-rate pricing, parts on the truck.
Residential new construction: rough-in volume, production pace, crew coordination, trim-out and punch lists.
Commercial and institutional: prints and submittals, larger pipe, pumps and boosters, grease interceptors, inspection regimes, work under a general contractor.
Industrial and process piping: welding and joining methods, pressure testing, hangers and supports, shutdown work.

Name the one you want next in the first line of your summary. A service manager reading a resume full of rough-in counts will assume you'll be slow on diagnosis, and a construction superintendent reading nothing but service calls will assume you've never kept pace with a framing crew.

Systems and materials you've actually worked

Write the specifics a foreman uses to decide what they can hand you: water heaters and tankless units including gas conversions, water service and repipes, DWV rough-in, sewer laterals and camera inspection, hydro jetting and drain cleaning, gas lines and pressure tests, sump and sewage ejector pumps, fixtures and ADA installs, well and pressure tanks, backflow assemblies. Then the joining methods and materials: copper sweat and press, PEX, CPVC, cast iron and no-hub, PVC/ABS, black iron and CSST, and any welding or brazing. Specific beats broad here, exactly as it does on an electrician resume or an HVAC resume.

Permits, inspections, and callbacks — the trust markers

✓ "Ran 6-8 service calls a day solo, completing 85% on the first visit from truck stock; callback rate under 2% over three years. Pulled and closed permits on 40+ water heater and repipe jobs with every rough and final passing inspection on the first attempt."

This is the plumbing-specific evidence most resumes leave out. First-time inspection pass rate, permits pulled and closed, callback or warranty-return rate, first-visit completion, and the average ticket if you worked flat-rate. Code fluency is proved by inspections passed, not by writing "knowledge of UPC/IPC." Use only the numbers your dispatch or service software would confirm, and if a figure was tracked by your employer, say so.

Coming up, and moving up

If you're an apprentice, hours are your currency: documented hours against the requirement, classroom hours completed, the program or local that holds them, and your expected exam date — the same apprentice framing that works across the trades. Back the hours with what you've been trusted to do alone. In a union shop, name the local and your book standing the way the union job guide describes; non-union, name the companies and the work.

Moving up reads as responsibility, not years: running your own truck, leading a two-person crew, training apprentices, bidding or estimating jobs, pulling permits under a master, handling the on-call rotation. Those are the lines that get you to lead, foreman, service manager or your own license — and they're the same trust markers that move anyone up a ladder. Plumbing experience also transfers cleanly into building maintenance if you want off the truck.

License block up top, callbacks and inspections in the bullets. PlainResume keeps your credentials where a hiring foreman looks first and exports a clean PDF you can send from your phone. Free, no sign-up, no paywall.

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Frequently asked questions

What should a plumber resume include?

License tier and state, add-on certifications, the plumbing you do, systems and materials worked, permits and inspections, and callback and completion rates.

How do I list apprentice hours?

As a running total against the requirement, with the program holding them and your expected exam date, backed by what you've been trusted to do alone.

What do service companies care about most?

Whether you can run a call alone, whether the work comes back, and how homeowners react to you — in that order.