Plumber

What it is

Plumbing follows the same logic as electrical work. A Diploma (6035) gives you the classroom knowledge, and the NVQ (6189) proves real competence on the job. A Level 3 NVQ makes you a qualified plumber. The NVQ is the part that counts, because it is built from genuine work, not just lessons.

Who it suits

Plumbing suits practical people who can commit a few years and do not mind physical, sometimes messy work in people's homes. It is a strong choice for career-changers and for younger people who can take an apprenticeship. The English bar is moderate, a little more forgiving on reading than the electrician's 18th Edition exam, so it can be a better trades entry point if your English is improving but not yet strong. There is steady, year-round demand for plumbers across the whole country, and a clear path to working for yourself once you are qualified, which is why it appeals to people who want to build their own business in time.

How you qualify

1. Do the Diploma (6035) for the underpinning knowledge, at a college or training centre.
2. Find real work, employed or as an apprentice, so you can gather on-site evidence.
3. Complete the NVQ Level 3 (6189), built from a portfolio of genuine on-site work. This is what makes you qualified.

An apprenticeship is the best value: it is free to you and pays you while you learn, over about 3 to 4 years. College plus finding work to complete the NVQ is the other realistic path.

Cost and how long it takes

The NVQ assessment route is around £1,000–1,250 if you already hold the Diploma. Taken as a full standalone Level 3 NVQ at a private centre it can run £3,800–4,600. It is free via an apprenticeship, which runs about 3 to 4 years. Private fast-track routes can reach £6,000, but understand what that buys before you pay (see the honest reality below).

The English you need

Moderate. You need enough English to read instructions and standards and to deal with customers, but the reading load is lighter than the electrician's regulations exam. Even so, if your English is very weak, an ESOL course first will make both the qualification and finding work much easier. Customer-facing work also rewards confident spoken English.

The honest reality

Here is the warning this trade needs. Private fast-track courses, sometimes costing up to £6,000, compress only the classroom part. They do not give you the NVQ, because the NVQ still needs real on-site evidence that only genuine work provides. Be very skeptical of any advert promising you will qualify as a plumber in a few weeks. Employers will not accept a classroom certificate on its own. The real wall in plumbing, as in all the trades, is getting the on-site experience, and no paid course can shortcut that for you. A certificate is not a job.

Gas is a separate step

It is illegal to work on gas without Gas Safe registration, reached through ACS assessments. Gas is the single biggest earnings upgrade in plumbing, but it is a separate, regulated step on top of your plumbing qualification, not part of it. Many plumbers qualify first, build a few years of experience, and only then add gas. You do not have to do everything at once.

What you can earn

Employed plumbers earn an average of around £33–34k. Established self-employed plumbers can expect roughly £60–85k. Adding Gas Safe registration lifts earnings further. Treat all of these as estimates, not guarantees: your income depends on your area, your experience, and how much work you take on.

Your next step

Skip the expensive fast-track adverts. Your single best first move is to look for a plumbing apprenticeship, which is free and pays you while you build the on-site experience the NVQ requires. If an apprenticeship is not available, enrol on the Diploma (6035) at a college and start looking for work to complete the NVQ. You can check current routes on the official site linked below.