

Is this a job for an electrician, a networking tech or a small contractor?
I inherited this in my garage then added my own wireless extender to it. The cover obviously won’t go back on with it like this.
What is this housing called? And who would be the right person to clean it up? A networking technician, electrician or someone else? Can I do this myself?Should I?
What can live in here and what needs airflow and shouldn’t be behind a closed cover?