Bad bad bunny - I kinda like you though.
It's too complicated - get a name, email, a phone number and time to call. Get a simple script that has an auto responce (emails them telling them you got the message and will contact them) call them and ask what they want.
Put a email contact address (encrypted), phone number and address above the form
Be honest - it's not a calculator - if they want an estimate give them one and be honest about it. Never make people do your work for you, you want to call them and get into a conversation about their needs. Put up a google api map also.
http://www.finedesigncloset.com/contactfinedesign.htm