I'm not recommending an electrician; however, an electrician could recommend a local contractor to run your coax. If you're to subscribe to any broadband service, you'll need to replace your RG59 with RG6.
RG59 is old and only good for ham radio and low-def CCTV cameras nowadays.
Just because someone retires, it doesn't mean they won't do it (wink).
Not sure if Cox runs fiber in our area. Practically every house in this neighborhood is likely run with RG59 in the walls, as most are from the 50's to 80's. We have no problem with download speeds, as a recent test of a new cable modem showed we were capable of 400mBp, streaming works fine, etc. The problem is we may have some frayed lines in the walls, very looooonnnnng home-runs that couldn't be redone without ripping out all our drywall. If they had to be replaced, running cable all over the outside of the house isn't really what would be the first choice, you know?
If the older cables are damaged, and are sending ingress back into the system, it's likely Cox will want to find a way to stop that. What's a drag is none of this is any problem for the technology it was meant for, but instead a problem for technology that wasn't even invented. I'd have to think the average customer wouldn't be happy paying to re-run internal house wiring because a monopoly can't handle bandwidth in it's nodes (the problem here, as Cox hasn't split up our neighbor hood into smaller, 50-home nodes: ours is still part of a 1969 500 home system. Funny that THEY aren't upgrading, but they may demand we do.