How Long Does a Retrofit Project Usually Take from Survey to Installation?

Timing depends on scope, wiring, and parts availability, but you’ll typically see a sequence: site survey, design and compatibility checks, written plan and quotation, procurement, installation, testing, and handover. A small, staged retrofit focused on lighting and a single AC unit can occur in a matter of days to a couple of weeks. A full-system retrofit—covering lighting, climate control, security, water monitoring and automation—may stretch to several weeks, especially if multiple zones and wireless mesh networks are involved. Allow time for permits or building approvals if required, and plan for interim workarounds if internet connectivity is unstable. Expect some delays if a major component needs replacement or if access is limited. Ensure the installer provides a phased plan, with milestones, budget tracking and clear acceptance criteria. Make sure you retain manual overrides and transferable administrator access. A site survey should confirm which areas are priority, and the plan should include post-install tests and a documented warranty and after-sales support path.