Can you have two wifi networks in one house?

Yes, running two separate wifi networks in one house is possible and fairly common. This usually means two routers, each broadcasting its own network name and password, rather than one unified system.

This setup is useful for a few specific reasons. Some households want to separate a guest network from their main one, keeping visitors off the primary connection where personal devices and shared files sit. Others separate IoT devices like smart cameras and smart plugs onto a second network, since these devices are often less secure and better isolated from laptops and phones.

Two networks can also help in larger homes where one router's network name doesn't reach every room well, letting each router serve its own zone with its own SSID, rather than fighting over the same signal.

The tradeoff is that devices don't automatically switch between the two networks, unlike a proper mesh system. Moving from one router's coverage area to the other means manually reconnecting to the new network. For most homes, a single mesh network is simpler, but running two distinct networks is the better choice when the separation itself, guest access, or IoT isolation is the actual goal rather than just extending range.