Seal Out Pests. Protect Your Property. Unsealed pipe penetrations are one of the most common — and overlooked — entry points for pests in commercial buildings. At Horizon Pest Control, we offer expert caulking services around utility lines and pipes to block these access points and keep your property secure. Benefits of Professional Caulking: • Prevents rodent and insect intrusion • Improves insulation and energy efficiency • Maintains a clean, professional appearance • Reduces moisture buildup