If we want to be your agent , how can we start cooperation?

For agent, we require about the “agent fee”, and once we received the agent contract, we will require about the “The first order money”.For details, pls check the agent contract.

If I have a house with 3 bedrooms and 2 living rooms, then what is the cost for this house with your system?

Pls check this list,I have an example for the system. But it depend on the demand from the buyer, we can also make the list according to your requirements.

What is the cost about installation fee whengive users the overall installation? 

We have two advice, one is that you can check how much for the total installation cost, and put it into the unit price, so tell your buyer you did not charge the installation fee. Another is that you can change the installation fee and product fee separately.