Custom means client specific. Suppose you need a website with some set of perticular features, we shall build those features exactly what you want.
Example 1: Suppose you have a event management company, and you need a website from where client can book you for a perticular date. So your customer can see a calender, from where they can check which date is available and that way they can book you. And you will be notified about the booking.
Example 2: Suppose you are a tour and travel agency. You need to post your tour packages to your website and you want customer reach to you from google search and see your packages and book it and pay you from your website.
Those are some example above to help you understand what we mean by custom website.
We have experiienced team in our organization with those following skills: