Understanding the lifespan of a termite barrier is crucial for long-term property protection. Most chemical termite treatments last between 5 to 8 years, but this depends on soil type, application quality, and environmental conditions. Regular inspections—typically recommended annually—ensure barrier integrity and help determine the ideal termite re-treatment period. Maintaining your chemical barrier and sticking to a consistent inspection schedule not only extends its effectiveness but also prevents costly infestations that could damage your home or investment.