Not many colocation companies do much of anything except racking the server and assigning an IP to the server to get you up.
Everything else after that, is all up to you. Also, everything else costs extra. If you need support it costs $100+/hour or more, etc.
HOWEVER< with a host like ourselves, we include FULL remote hands with colocation - which means ANYTHING which you need done which requires physical access:
Reboots, OS (re)installs, hardware swapping, basic server reviving(IE: server wont boot, we try and fix), KVMoIP, etc etc.
We also have the option to purchase FULL server administration, which takes care of EVERYTHING. The ONLY thing you do is watch over your website(s). We proactively update, and administer everything, down to the last website script.