Free Plumbing Courses with Certification

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If there’s one job that’ll always be in demand, it’s plumbing.

Think about it: pipes burst, sinks clog, toilets break down… and someone always calls the “plumbing hero”.

But what if I told you that you could learn this amazing profession for free, straight from the U.S., and still walk away with an international certificate in hand?

That’s right, my friend! Today we’re talking about free plumbing courses with certification — all online.

Accessible to anyone who wants to learn, whether to work in the field, boost your resume, or just stop relying on others when emergencies hit at home.

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The coolest part? These courses are 100% legit — no sketchy stuff, no piracy.

All you need is an internet connection and the will to learn.

And yes, all the courses on this list are from the United States, but they’re available worldwide, including for folks here in Brazil.

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Oh — and you don’t need to be fluent in English. Most of them have subtitles, visual content, and super clear explanations that are easy to follow.

So get ready — we’re diving into four free plumbing courses with certification that will get you totally prepped to handle any pipe!

1. Alison – Diploma in Plumbing Studies

Let’s start with a favorite for anyone wanting to study with quality and zero cost: the Diploma in Plumbing Studies from Alison.
This course is top-tier — 100% online, free, and offers a digital certification at the end.

It’s super complete and goes from beginner to advanced, making it perfect for total beginners.

The content covers loads of useful topics like types of pipes, fittings, hydraulic system installation, workplace safety, and even reading plumbing blueprints.

The lessons are divided into organized modules with easy-to-follow videos and texts.
To get the certificate, you just need to pass the final tests with a good score.

Nail it, and you get a certificate you can print, share on LinkedIn, or even show in job interviews.

Signing up is easy: go to Alison’s website, create an account, and search for “Diploma in Plumbing Studies”.
Once you start, you study at your own pace — pause, review, and watch from anywhere: phone, tablet, computer, whatever works best.

No doubt, this is one of the most complete and well-known free plumbing courses with certification.
If you want something serious, high-quality, and fully certified, this one’s a no-brainer.

2. SkillCat – Plumbing Training & Certification

If you’re into hands-on learning, SkillCat’s Plumbing Training & Certification course is gonna be your jam.
This platform trains tech professionals in the U.S. — in HVAC, electrical, and yes, plumbing.

And the good news? There’s a ton of free content, plus certification at the end.

The course is super interactive. Think simulations, animations, quizzes, and even real-world scenario simulators — they make learning fun and effective.

You’ll learn from introductory plumbing basics to advanced concepts like pressurization, valve installation, commercial plumbing setups, and more.
And the learning interface? Feels like an app or even a game — smooth, modern, and actually fun.

To get started, head to SkillCat’s website, create a free account, and choose the Plumbing track.
You’ll start with the basics and unlock more as you go.

Each completed module earns you points, badges, and eventually, a certificate that proves you know your stuff.

Best part? This course is job market focused — ideal for those looking to work in the U.S. or for companies that value international training.

That’s why it’s a solid contender among the best free plumbing courses with certification!

3. PHCC Academy – Plumbing Pre-Apprenticeship

Check this out: the PHCC (Plumbing-Heating-Cooling Contractors Association) is a major U.S. trade association, and they offer a free plumbing pre-apprenticeship program.

This is like a starter course — perfect for anyone wanting to start a plumbing career in the U.S. or simply understand how the international market works.

The course focuses on plumbing fundamentals, safety regulations, tools, and blueprint reading.
It also includes professional ethics, customer service skills, and tips that really matter in everyday plumbing life.

Even better: students get access to mentoring and exclusive industry content.

And yes, even though it’s aimed at Americans, it’s available online for anyone around the world.
Just visit their website, fill out a quick form, and get access to all the study modules.
All completely free, and with a digital certificate at the end.

This program totally deserves its spot on the free plumbing courses with certification list — it’s industry-backed, well-respected, and actually preps you for a career in the field.

4. Watts Works Online Training – Plumbing Basics

And to wrap up with a bang, we’ve got Watts Works Online Training, created by Watts, a leading U.S. plumbing products company.
They built an online platform packed with short and practical courses, including a gem called Plumbing Basics, which is 100% free.

This course is perfect for anyone who wants to learn quick, foundational plumbing concepts.

It includes short videos, PDF materials, simple quizzes, and a completion certificate for each module.

You’ll learn about hydraulic systems, water pressure, valve installation, leak prevention, and more.

Unlike long courses, this one is modular — meaning you pick the topic you want to learn and dive right in.

That’s perfect for people with limited time or anyone looking to study specific topics.

Yes — the certificate is free, and it lands in your email right after finishing the module.

To access, just go to Watts’ website, sign up for the Watts Works platform, and start learning.
Works on mobile and desktop, light and super easy to use.

This is the kind of “fast and straight to the point” course, and that’s exactly why it made our free plumbing courses with certification list.
If you like to learn at your own pace and without fluff, this one is a great pick.

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