Make sure you do research on natural gas supplier. Wait until you're an informed consumer. People can start signing up with suppliers as of Oct. 1 for the change to take effect on Nov. 1. Your first bill would then come in December.
Some deadlines are to get a certain price.
Others are in order to get switched over by the next month. If you miss that date, you'll just become their customer a month later. Take time to read the entire contract before signing. Confirm that the prices you were quoted are in your contract. Also, read the cancellation policy to see if there are any costs to sign up or cancel.