Why the builder has left networking cables handling from wall outlets and can this be fixed ?

Its most probably a cost cutting measure from the builder to skimp on the communication wiring. Though the common reason given by engineers is that if they put wall sockets it causes attenuation and degrades performances. 

The Telecom sub-committee has tested Ethernet cables (transfer rate) with multiple keystone jack connectors (two) introduced in a single patch chord and found that their is some truth in the attenuation argument (you can read on the internet) but no truth in the conclusion that it degrades performance (we found a drop of 0.015% only which is to be ignored as measurement error). Wall jacks, patch panels, etc are widely used in enterprise and data center which are much more sensitive to performance unlike home network and hence their is another way of validating our assertion and test result as opposed to the builder's argument.

Anyways, we should fix this. the electrical outlet system is Legrand Arteor in the project. Legrand Arteor has Cat 5e/Cat6 UTP modules available readily in local market, along with flush metal boxes and faceplates. Please get them as per  the number of open data point outlets and get them sealed like any other electrical outlet. You may do the same for switch side also or buy 19" inch rack with patch panel to cover the switch area (in the same rack depending on size, you may put a switch, router, NAS, UPS etc).


- Suman Kumar Luthra @ APRC-P3 Telecom Sub-Committee