Manage my time more effectively - Email and chats are the devil

Being used to being unfocused

I am lucky enough to work in a private office where I can closed the door and not be disturbed. But work email, Google chats and private Google mail really becomes a distraction. 
To make it worse, when I am not being distracted by mail and chat I check to see if I have new mail or chats periodically.
This really disrupts my train of thought.

The desired end result

While developing software focus is key!
No disruptions during pomodoros!

What I am going to do
Close my work email and gmail during 25 min pomodoros