How much does termite treatment cost?

I have a 1 story 3 bedroom house, and because of the rain we discovered the flying termites were coming into the back bedroom (in horrible swarms). We need treatment, but cost is a major issue. The infestation is obviously bad if they're coming into the house, so how much would a sizable termite treatment cost? Or if they vary greatly, what is the cheapest in Long Beach, CA?
I have a 1 story 3 bedroom house, and because of the rain we discovered the flying termites were coming into the back bedroom (in horrible swarms). We need treatment, but cost is a major issue. The infestation is obviously bad if they're coming into the house, so how much would a sizable termite treatment cost? Or if they vary greatly, what is the cheapest in Long Beach, CA?

EDIT: The termites ARE coming from inside. They are coming in through a hole in the wall that was made by phone jack.

View this post on my blog: http://madeinhome.info/how-much-does-termite-treatment-cost