Gasfitter (313D)
Install, test, and service natural gas and propane piping, appliances, and equipment.
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A Red Seal endorsement is a seal on your provincial or territorial trade certificate. It shows you have the knowledge and skills to practice your trade across Canada — earned by passing the interprovincial Red Seal exam.
What this trade covers
Install, test, and service natural gas and propane piping, appliances, and equipment.
Exam format
- • 120 multiple-choice questions
- • 4-hour time limit
- • 70% required to pass
- • Closed-book
- • 100 questions, 4 hours, 70% to pass
- • Questions align with the Red Seal Occupational Standard (RSOS)
Exam blueprint (RSOS)
Questions are distributed across major work activities defined in the Red Seal Occupational Standard — the same breakdown used on the official exam.
Common Occupational Skills
Gas Piping Preparation and Assembly
Venting and Air Supply Systems
Controls and Electrical Systems
Installation of Systems and Equipment
Testing and Commissioning of Gas-Fired Systems
Servicing Gas-Fired Systems
Official Red Seal resources
Source material from the Red Seal Program — administered by the Canadian Council of Directors of Apprenticeship (CCDA).