My cockatiel is chirping more than normal?

my 3 year old bird has been chirping way more than usual, he use to just chirp when I leave the room or when I talk on the phone. But that was only during the day. Now he chirps all day and all night.. I'm not sure if its because he's stressed out because he got a new cage last week or If he's happier because his cage is much bigger and has more toys. All of this chirping just started about 4-5 days ago. I'm really worried about my baby! Is there anything I can do to make him stop chirping at least at night? Is he upset or hurt in anyway??