You should expect to pay around $800-1000 dollars depending on the company. I suggest you get estimates from several companies and compare the cost along with the services they provide. Find out if the bond can be transferred if you sell the home or if the Buyer will have to purchase a new bond.
It depends on many factors such as the life of the bond, the type of termite species covered, and, whether it is transferrable. Best to compare at least 3 reliable companies that are likely to be around in the years to come.
your best bet is to have it quoted by 3 companies who service your area and try to be certain that they are all quoting apples to apples for a transferable bond - there are two types - repair only and repair and retreat. Good luck.