I found these weird dirt tunnels running up the support beams in my basement. I poked one and it crumbled, but it looks like they go all the way to the subfloor. Is this serious?

structure.

Before calling in a professional, you can conduct a preliminary inspection to gather information about the infestation. Begin by inspecting all wooden structures in your basement, including beams, joists, and support posts, for signs of damage.

Use a flashlight and a flathead screwdriver to probe suspicious areas, listening for hollow sounds or finding weakened wood. Document your findings with photographs and notes, which can be useful for a pest control professional to assess the situation and determine the best course of action.

Professional treatment options for termites include liquid termiticides, baiting systems, and fumigation. Liquid treatments involve applying a termiticide barrier around the perimeter of your home, while baiting systems use stations to lure and eliminate termites.

The cost for termite treatment varies depending on the method and extent of the infestation.