Educational Prerequisites for Construction Trades.

Do you want to work in construction but haven't completed high school? You're not alone. Many people mistakenly believe that a diploma is absolutely necessary to start a career on construction sites.

The reality is much more accessible: several vocational training programs (DEP) in construction accept candidates without a high school diploma, provided they meet certain prerequisites or have passed the TDG.

This article gives you a clear and simple overview: job by job, you'll see what it takes to be admitted to the training and start earning a living quickly in a lucrative and in-demand field.

No matter your educational background, there's probably a path for you.

What is the TDG (General Development Test)?

The TDG is an official test from the Ministry of Education of Quebec that can replace the high school diploma (DES) to access vocational training.

It is designed to assess whether you have the basic skills necessary to succeed in a DEP, even without having completed high school.

What does the test consist of?

The TDG includes multiple-choice questions on several fundamental areas:

• Text comprehension

• Logic and reasoning

• Basic mathematics

It is not a traditional academic exam. You don't need to know everything, but you must demonstrate that you have mastered the basics.

Is it difficult?

The test is accessible, especially if you already have some work experience or if you've already returned to studies.

Where to take it and how to register?

You can take the TDG at most vocational training centres (CFP). Just contact a centre that offers the DEP you are aiming for. Registration is free, and you can retake the test if you fail.

Note

Even after passing the TDG, some DEPs also require specific courses in French or math (e.g., FRA2102-2 or MAT2102-3). These courses can often be taken simultaneously with the DEP.

🔢 List of Trades and Educational Prerequisites

Trade	Required High School Level	Access via TDG	Other Information
Surveyor	Grade 10	Yes	DEP Surveying and Topography
Blaster	Grade 10	Yes	General explosives permit required
Diver	Complete DES	No	Sports diving certificate required
Welder	Grade 10	Yes	DEP in Welding and Fitting
Pipe Welder	Additional DEP required	No	Must already have a DEP in Welding and Fitting
Line Installer	Grade 9	Yes	DEP in Electrical Line Installation
Bricklayer-Mason	Grade 9	Yes	-
Insulator	Grade 9	Yes	-
Tiler	Grade 9	Yes	-
Carpenter-Joiner	Grade 10	Yes	-
Boilermaker	Grade 10	Yes	-
Cement Finisher	Grade 9	Yes	-
Roofer	Grade 9	Yes	-
Electrician	Grade 10	Yes	-
Security Systems Installer	Grade 10	Yes	-
Sheet Metal Worker	Grade 10	Yes	-
Rebar Worker	Grade 9	Yes	-
Refrigeration Mechanic	Grade 10	Yes	-
Crane Operator	Grade 9	Yes	-
Elevator Mechanic	Grade 10	Yes	-
Construction Mechanic	Grade 10	Yes	-
Heavy Machinery Mechanic	Grade 10	Yes	-
Fire Mechanic	Grade 9	Yes	-
Assembler	Grade 9	Yes	-
Glazier	Grade 10	Yes	-
Heavy Equipment Operator	Grade 9	Yes	-
Excavator Operator	Grade 9	Yes	-
Painter	Grade 9	Yes	-
Plasterer	Grade 9	Yes	-
Floor Covering Installer	Grade 9	Yes	-
Interior Systems Installer	Grade 9	Yes	-
Pipefitter	Grade 10	Yes	-

Learn More About the CCQ Competency Card

Once you know which trade you're aiming for and how to access the training, the next step will be to obtain your CCQ competency card. It is essential for working legally on construction sites in Quebec.

You can consult our complete guide here: How to Obtain Your CCQ Competency Card in 2025

In Conclusion

You don't need a complete high school diploma to access a career in construction. Several trades are accessible with Grade 9 or 10, or simply with the TDG. Get information from a vocational training centre.