Install a liquid barrier treatment (Termidor/fipronil)

What to Do

Hire a licensed pest control professional to apply a liquid termiticide barrier around your home's foundation. Termidor SC (fipronil) is the industry standard — a non-repellent termiticide applied by trenching 6 inches deep around the perimeter and drilling through concrete slabs where needed.

Why It Works

Fipronil is undetectable to termites, so they walk through treated soil and transfer it to other colony members through contact and food sharing. USDA Forest Service testing showed near 100% control within three months and no re-infestation for 15+ years. The barrier remains effective for up to 10 years.

Tips

• Requires 100+ gallons of solution depending on home size — not a DIY project
• Cost: $1,500-3,000 for an average home
• Fipronil is toxic to fish and aquatic life — cannot be used near water bodies
• Effective against subterranean, Formosan, and to a lesser extent drywood termites
• Ask about warranty terms — most companies offer 5-10 year guarantees