Black & McDonald Limited is seeking an HVAC Journeyman at our location in Trenton, Ontario. The successful candidate will maintain, upgrade, troubleshoot, and repair various HVAC equipment and systems within a portfolio of buildings to achieve optimum life span of the equipment.

Duties & Responsibilities include but are not limited to:

  • Perform planned and predictive maintenance duties
  • Disassemble, repair, and reassemble existing mechanical equipment; install new equipment, gas lines, refrigerants lines, etc.
  • Complete work orders, deficiency reports, field quotations, estimates, and daily time summaries in a timely fashion
  • Assemble and install refrigeration or air conditioning components
  • Measure, cut, and connect piping using welding and brazing equipment
  • Perform routine maintenance and servicing
  • Install, troubleshoot, repair, and overhaul entire heating, ventilation, air handling, refrigeration, and air conditioning systems
  • Handle, recover, and store refrigerants
  • Test and repair electronic components
  • Check all parts of an HVAC system
  • Assist in determining repair solutions including price determination and projects scopes based on your recommendations,


  • Communicates Effectively
  • Customer Focus
  • Problem Solving and Innovation
  • Teamwork and Collaboration
  • Values and Respects Others


  • 5 years’ experience in a HVAC position in service, maintenance, replacement, and installation for commercial and industrial sites


  • Must possess a valid 313A license and valid ODP certification
  • Must be able to obtain and maintain a valid Secret Security Clearance
  • Must have experience using mobile technologies
  • Ability to read and work from HVAC/R, mechanical schematics, electrical schematics, line drawings, etc.
  • Valid G1 gas license
  • Valid G driver’s license
  • Knowledge in a variety of electronic, pneumatic, and DDC control systems an asset
  • Strong mechanical ability and problem solving skills
  • Ability to work well with coworkers and customers