Gasfitter A - Commercial & Industrial Service

Black & McDonald is a leading integrated, multi-trade service provider offering full life‑cycle solutions for public and private sector clients across Canada and the United States. We are committed to safety, technical excellence, and delivering reliable, high‑quality service while supporting the professional growth of our employees.

Black & McDonald Limited is seeking a highly skilled and safety‑focused Gasfitter A to join our commercial and industrial service team in Winnipeg. The successful candidate will be responsible for servicing, troubleshooting, repairing, and maintaining complex gas‑fired systems and equipment in operational facilities. This role requires strong technical expertise, independent problem‑solving ability, and a customer‑focused approach in occupied environments.

• →Respond to service calls involving commercial and industrial gas‑fired equipment and systems
• →Diagnose, troubleshoot, repair, and maintain natural gas and propane systems within the scope of a Gasfitter A license
• →Service and repair large‑scale and complex gas‑fired equipment, including boilers, burners, rooftop units, make‑up air units, process equipment, and hydronic systems
• →Perform start‑ups, shutdowns, inspections, testing, combustion analysis, and preventative maintenance
• →Identify system deficiencies and provide clear recommendations, repair scopes, and corrective actions
• →Read and interpret gas schematics, P&IDs, blueprints, and technical manuals
• →Ensure all work complies with applicable codes, standards, and regulations (CSA B149, Manitoba Gas & Safety Codes, and company safety policies)
• →Communicate professionally with customers, facility managers, and internal project teams
• →Complete service reports, work orders, and digital documentation accurately and efficiently
• →Coordinate service activities with other trades, supervisors, and project managers as required
• →Participate in on‑call rotation and after‑hours emergency service work, as required
• →Maintain and operate tools, equipment, and company vehicle in a safe and professional condition
• →Actively participate in safety meetings, training, and hazard assessments

• Valid Manitoba Gasfitter A (Class A) Certification (required)
• Minimum 5+ years of experience in commercial and/or industrial gas service work
• Strong understanding of combustion systems, burners, controls, and hydronic applications
• Experience with troubleshooting large‑scale gas systems
• Ability to work independently with minimal supervision
• Strong ability to interpret technical drawings, schematics, and manufacturer documentation
• Excellent communication and customer service skills
• Valid Class 5 driver’s license with a clean driving record
• Physically capable of performing duties of the trade, including lifting, climbing, working at heights, and in confined mechanical spaces

• Dual trade certification (Plumber, Steamfitter/Pipefitter, or Refrigeration)
• Experience servicing standard commercial, industrial facilities, or institutional buildings
• Experience with Building Automation Systems (BAS) and advanced controls
• Familiarity with mobile service management platforms
• Safety certifications such as First Aid, Fall Protection, Confined Space, Aerial Work Platforms