After proper understanding with each other, sign an agreement copy of painting job where we will mention whole job details along with kind of shades & branded products will be used. where we will clearly mention the following things: -

Details of exact paintable area of wall each of individual room.

Details of exact paintable area of wooden & metal surface.

Payment option

Job starting date

Job ending date

Rate per sq feet

Customer details

Any spacial offer

Painter name

Painter contact no