Residential Central Air Installation

I'm looking for an experienced HVAC technician to install a central air system in my residential property. Currently, I only have central heating.

Key Requirements:
- Install central air in a residential building.
- Type of central air system is flexible (not limited to split, packaged, or ductless).
- Existing ductwork status is uncertain.

Ideal Skills and Experience:
- Expertise in HVAC systems, particularly in central air installation.
- Experience with residential properties.
- Ability to assess and work with various ductwork scenarios.
- Relevant certifications and licenses in HVAC.

Please provide a detailed proposal, including your experience and approach to this job.