Residential and commercial installers and servicers perform some or all of the following duties:

• Read and interpret blueprints, drawings, and specifications for installation requirements
• Install windows, doors, appliances, and security systems using hand and power tools
• Test installed systems to ensure safety and proper functionality
• Diagnose and repair malfunctions in installed systems and equipment
• Measure and mark layouts to ensure accurate installation positioning
• Perform minor structural modifications such as cutting openings or reinforcing mounts
• Demonstrate operation and maintenance of installed systems to clients
• Perform routine maintenance on equipment such as water systems and heating units
• Maintain service records and documentation of installations and repairs
• Prepare cost estimates for materials and labor

These are the typical employment requirements and certifications required in Canada:

• Completion of secondary school is usually required
• Completion of a one- to three-year college program OR 2–3 years of on-the-job training
• Valid Class 5 Driver’s License is typically required
• Gas Technician (G3/G2) certification may be required for gas appliance installation
• Electrical certifications (ESA or equivalent) may be required for certain roles
• Ability to pass background checks for bonding is often required
• Strong technical, troubleshooting, and customer service skills are essential