I provide tech support remotely 16/7/365. You can get started for as little as $95, which gets you 100 minutes of support. There is no time limit in which to use these minutes and additional minutes are purchased as needed (at $1/min, less if purchased in quantity). Maintenance fee is $20/month to support 1 PC, $30/month for 3 PCs, and $50/month for 5 PCs.
We use Citrix’s GoToMyPC for remote support, which is known and tested to be robust and secure. Users at one of the supported PCs simply click a help button to contact a live Tech Support rep who will resolve their issue while they sit back and relax (no troubleshooting required on the user’s part – unlike most phone support only contracts).