re: Anyone here get commercial grade termite control and do it themselves?

What you want is fiprinil, generic termadore. It doesn't repell like Tallstar, it attracts and contaminates the rest of the crew. And it is supposed to last 10 years when you dig the trench. Now remember you need a large container to spray the stuff like one on the back of a four wheeler, I sprayed like 300 gallons.

have a point about seeing your slab, but are you really going to go out there every month and inspect it?

I had my slab treated, but did the trench after the house was built. Five years later now that the house is flooded I see I have live termites in five different places. There was not that much damage, so I think they may have been from the swarm of this summer.

I bought some more Fiprinil and sprayed topically, this application is supposed to last six months. You can get a bottle on Amazon for $20 and it will last you two years.