About Black & McDonald
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.

Position Summary
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.

Key Responsibilities

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

Qualifications & Requirements

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

Assets (Considered an Advantage)

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

Why Join Black & McDonald?

Work directly alongside experienced trades people and industry leaders for mentorship and training

Competitive compensation and comprehensive benefits package

Service vehicle, tools, and technology provided

Overtime and on‑call premiums

Stable, long‑term employment with a respected industry leader

Solid safety culture and collaborative team environment

Ongoing training, certification support, and career advancement opportunities

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📌 Gasfitter A - Commercial & Industrial Service (Manitoba)
🏢 Black & McDonald
📍 Manitoba