Subterranean Termite Facts • Subterranean termites are the most common in Southeast Texas. • They live in the soil and build mud tubes to stay moist (because Houston humidity still isn’t enough for them). • Swarmers usually show up in spring when temps warm up after rain. • By the time you see them, the colony has likely been there for years. They don’t sleep. They don’t stop. And they definitely didn’t pull a permit. If you’re seeing wings on the windowsills or mud tubes on the foundation… it’s