What percent of pest problems can typically be resolved with exterior treatment?

• A. 95%
• B. 50%
• C. 5%
• D. 100%

Answer: (A)

Exterior treatments create a protective barrier around the outside of the home, stopping many pests from entering and reducing activity near the perimeter. Because most pest problems originate outside or around the foundation, this approach tackles the vast majority of issues—about 95%. That high percentage reflects effectiveness for most situations, while a smaller portion of problems still require interior treatment or follow-up if pests are already inside, hiding in walls or hard-to-reach spaces, or if there are food sources indoors. The other options (50%, 5%, or 100%) don’t fit because they either underestimate the impact, are far too low, or assume perfection, which interior factors can prevent.