Gas fitters perform some or all of the following duties:

• Study drawings and specifications to determine the layout of gas lines and installation materials
• Install and maintain gas meters, regulators, and piping systems in residential and industrial settings
• Service gas heating units, burners, valves, and automatic control systems
• Test gas lines and connections for leaks using digital detection devices and pressure gauges
• Ensure safe operation of gas systems and compliance with national safety standards
• Advise clients on proper maintenance, usage, and safety procedures for gas appliances
• Convert appliances and vehicles to operate on natural gas
• Work with modern systems including renewable natural gas (RNG) integration and smart gas monitoring devices

These are the typical employment requirements and benefits associated with this occupation in Canada:

• Completion of secondary school is typically required
• Completion of a two- or three-year gas fitter apprenticeship program is mandatory
• A provincial gas fitter licence is required to work in this occupation
• Trade certification is compulsory in Nova Scotia, Quebec, Alberta, British Columbia, and the territories
• Gas fitter Class B allows work on appliances up to a specific BTU limit
• Gas fitter Class A allows work on large-scale industrial systems with no BTU limit
• Red Seal endorsement is highly recommended for national mobility and higher wages
• Strong understanding of safety standards, gas systems, and regulatory compliance is essential