Most smart home devices use existing wiring, so you can start without changes. Smart plugs, speakers, and cameras just need standard outlets. Smart switches and dimmers may require a neutral wire in the wall box, which older homes sometimes lack. Wired doorbells can be replaced with smart versions if the transformer meets voltage needs.
For reliable connections, some homeowners add Ethernet lines for hubs, cameras, or access points. Low voltage wiring is useful for sensors and security systems. If you plan major upgrades, ask an electrician to confirm what your home supports. If you want in wall tablets or touch panels, plan for power at those locations and consider conduit for future cable upgrades during renovations or new construction projects.
