What is the step-by-step AC installation process homeowners should know?

An AC installation follows a clear sequence from an in-home assessment to final startup and homeowner orientation. Most jobs begin with a load calculation to size the system correctly so it cools evenly without wasted energy. We perform these steps every week in Bay Area homes, bringing technician focus to older ductwork and tight outdoor spaces. A current offer provides $100 off AC system installation; ask for details.

Typical pro workflow:

• In-home assessment and sizing.
• Options review and written proposal.
• Duct inspection and needed fixes.
• Place equipment, pad, and supports.
• Run line set, drain, and wiring.
• Evacuate, charge, and leak-test.
• Start up, set airflow and controls.
• Walkthrough, documentation, and maintenance plan.

Scheduling a professional assessment is the best first step. <br/> Updated: 2026-05-04 <br/> Need help in San Mateo, CA? Call (628) 222-4283 or book online.