Bath Trap

So imagine if you will, the construction company is building your dream house. Sounds like the Twilight Zone, everyone has different skill sets, mine is bugs and entomology. We or a pretreat company sprays the ground to treat the soil for termites before they pour the concrete. When the plumber comes along later, how do they deal with that mess from the bath trap. Generally they remove it away and don’t worry about it. Now I wonder where are the termites going to come into the house. Either on the outside of the home or where there is a hole.