The purpose of an Electrician is to perform skilled electrical work, ensuring the installation, maintenance, and repair of electrical systems meet safety, efficiency, and quality standards. ...

The primary purpose of a Ducting Installer is to design, fabricate, and assemble ductwork systems that facilitate efficient airflow in heating, ventilation, and air conditioning (HVAC) systems. ...

The primary purpose of a Plumber is to ensure the safe and efficient installation, repair, and maintenance of water, gas, and drainage systems. ...

The primary purpose of Lagging (or Insulation Installation) is to provide thermal, acoustic, and fireproofing insulation for pipes, ducts, and equipment...