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Termite Mud Tubes: What They Look Like & What To Do

Mud tubes on your foundation can be a termite warning sign. Learn what they look like, where they appear, and when to schedule a free termite inspection in Dallas–DFW.

Updated: January 14, 2026 Area: Dallas–DFW

What are mud tubes?

  • Mud tubes are narrow “tunnels” termites build to travel between soil and wood while staying protected.
  • They often appear on foundations, crawlspace walls, or near plumbing penetrations.

Where you might see them

  • Along the slab edge or foundation wall
  • Near expansion joints and utility lines
  • Inside garages, behind stored items, or in crawlspaces

What to do (and what not to do)

  • Don’t spray random chemicals and assume it’s handled—termites can stay hidden.
  • Don’t remove all tubes before inspection; photos help document activity.
  • Request a free termite inspection to confirm activity and discuss options.

Book a 100% Free Inspection

If you want an expert to confirm what’s happening and discuss options, book your free inspection request. Any service you choose to purchase is fulfilled by Terminix.