Spending two to three weeks gathering information is time well spent. Arrange to have 4-5 professional pest companies inspect the structure and estimate the cost of the termite treatment. Request that all bids be put in writing. Ask each company to describe in detail the precise procedures that will be taken to treat the structure. There are no special or secret chemicals available to only select pest control companies.
All companies can use any of the registered termiticides.
Ask what rate and amount of chemical solution will be used. The key to an effective treatment is the formation of a complete continuous barrier between the soil and all parts of the structure. These individuals have passed a test and taken yearly classes to maintain their certification. They will carry an I.D. card with their picture on it. Request to be furnished with a list of recent references in your area.