Most homeowners hire an electrician to install Ethernet cables and ports. Depending on the complexity of the computer network, contractors may quote 30 to 40 hours for the project. If your computer network is experiencing trouble, you can hire an electrician or a computer specialist for troubleshooting or repairs. Repairing a computer network costs between $100 and $230.
No, you shouldn't run Ethernet cables through air ducts or along vents. This is unsafe and usually against local building codes. It’s best to work with a licensed electrician and defer hardware planning specific to them. They'll know how to best route the cables through your home efficiently, safely, and compliant with building codes.
A hardwired computer network generally provides faster internet speeds than Wi-Fi. Ethernet cables are also known for providing superior security and reliability. Modern laptops and most desktop computers feature both Ethernet ports and wireless network cards, making it easy to switch between hardwired connections or Wi-Fi as needed.