Once drywall is up, running cable means fishing it through finished walls, cutting access holes, and patching afterward. While the framing is still open, the same cable can be run in a fraction of the time and hidden completely.
For data, that usually means a Cat6 run to each spot where you'll want a wired connection: a desk, a TV, a gaming setup, or a ceiling-mounted Wi-Fi access point. Each run goes back to one central location where your modem and router live.
For security cameras, it means running cable to the exterior walls and soffits where cameras will go, even if you install the cameras later. Power-over-Ethernet cameras use the same type of cable for both power and video, so one run per camera is all you need.
Because we frame, drywall, and install data and CCTV ourselves, we can plan the cable routes during framing and have them in place before the walls close. Mention it when you request your renovation quote.