[Carl in Tampa]

My experience with drywood termites is quite dated. While in college I worked every summer for Orkin Exterminating Company in Tampa, putting canvas tents on houses and filling them with Methyl Bromide gas to kill the termites.

This was whole house treatment and was effective for drywood termites, but not for subterranean termites, which requires treating the soil with chemicals.

On rare occasions we would "spot treat" for drywood termites. This involved injecting liquid chemical into affected wood under pressure.

I quite honestly do not know what changes may have taken place over the years in the techniques of killing drywood termites, but if you have a drywood infestation it is quite serious. They can do major damage that will severely affect the value of your home. If you ever have a termite infestation in your home you are obligated by law to disclose it to the buyer if you sell the house.

Because this is such a serious issue I would get multiple estimates for any termite treatment and one of the estimates for me would be from a nationally reputable company such as Orkin.