Subterranean termites can travel from the soil into a home through hidden or protected areas. A visible mud tube may be only one sign of activity.
Why the foundation edge matters
Arizona guidance identifies subterranean termites as a major urban concern. They depend on colony conditions in the soil and often use earthen shelter tubes to cross exposed materials while retaining moisture. Around a Casa Grande house, the transition between soil, concrete, stucco, attached slabs, and structural materials deserves careful attention.
A tube on an exterior wall should be documented, but it may not reveal every place termites are entering. Low stucco, stored materials, planters, dense landscaping, concrete additions, and utility penetrations can hide parts of the foundation from view.
The inspection determines where treatment is needed
The inspector checks where termites are active, how they may be entering, and which areas can be treated. Garages, patios, additions, plumbing penetrations, and finished surfaces can require different inspection or treatment methods.
Ask for a diagram showing where work is proposed and which areas could not be inspected or treated. If the company recommends drilling, trenching, bait stations, or work in a smaller area, ask what will happen to the surfaces and how you should prepare.
Conditions around the home also matter after service. Persistent leaks, irrigation against the structure, buried wood, cardboard storage, and soil or mulch covering the visible foundation edge can make future observation harder or create favorable conditions. Correcting those issues supports inspection and monitoring, but it is not a substitute for treatment when activity is confirmed.
Keep the treatment history with the home
Keep the termite records with your other home documents. Save the estimate, product information supplied by the company, service diagram, dates, warranty, renewals, and follow-up findings. Give the records to future owners during a sale and show them to contractors before additions or exterior work.
If signs appear after treatment, photograph them and check the original paperwork before disturbing the area. Contact the company named in the warranty or service agreement to ask whether an inspection or retreatment is covered.