The only time there will be additional charges is when you want US to make changes or updates to your site. Our standard maintenance fee is $48..00/hour for all services provided in-house. If your site uses commercial extensions, they may require renewal licenses. An example would be the Website Firewall we highly recommend. There is a $50 annual fee.   Of course, you will have to renew your web hosting service (12 months) as well as your domain name every year or two (depending on the length of time you purchased it for).