Causative Have

Have Something Done

Causative have is formed by the subject followed by the verb have conjugated in any tense, then the object, and finally the past participle of the main verb. Therefore, the pattern is:

[Subj + have + object + pp]

1) We use a causative construction when arranging for someone to do something for us. In this type of sentences the subject is not the doer of the action, but the one that orders the action on his or her benefit; in other words, it's the one that causes the action.

 Look at the following set of examples:
(A) They repaired their car.  (active construction)
(B) They had their car repaired. (causative construction)
(C) I cut my hair yesterday. (active construction)
(D) I had my hair cut yesterday. (causative construction)

In instances A and C, the subjects carry out the action expressed by the verbs, that's to say, they repaired their car themselves and I cut my hair myself.  However, in sentences B and D, the subjects do not do anything but order someone else to carry out the actions, namely they arranged for the mechanic to repair the car and I arranged for the hairdresser to cut myself.

More examples:
I am having my room cleaned (I'm not cleaning it myself, I'm making someone else clean it)
My parents have had their house painted (they haven't painted it themselves, they called the painters)
John is going to have his office redecorated (he isn't going to do it, he pays a specialist to do it)

We also use causative have when someone does something to us:
Bill is going to have his money stolen. 
I had my computer broken by my little brother.

Sumber : http://englishcoffer-pcse.blogspot.com/2011/05/causative-have.html