Protecting an area against pest access either by mechanical alteration (physical exclusion) or by rendering access points and harborage impassable via chemical repellency (chemical exclusion).


  • Exclusion involves altering the environment so pests cannot enter or travel through. Chemical exclusion repels pests from the area and reduces the likelihood that pest will enter or harbor.
  • Accomplished by making Crack & Crevice or void injection treatments with silica aerogel, or other repellent material.


  • Physical exclusion may be a permanent solution for an area and reduces long-term pesticide requirement.
  • Access points and voids may be quickly with products (chemical exclusion) designed to repel, which limit the influx of some pests and reduce pest sightings.
  • Exclusion may reduce the use of chemical insecticides and is considered, by many, as environmentally friendly.

Application Equipment

  • Caulk, netting, wire mesh, cement and highly repellent insecticides.

Common Pests Treated with this Technique

  • Birds
  • Rodents
  • Cockroaches
  • Flies
  • Occasional invaders

Products Used

Residual products with repellent properties such as Tri-Die and Microcare.

Quick links to Pest Pages :





Rat and Mice




Monica Bird (949 Posts)

Monica’s compassion for her customer's struggles with pest control issues and passion for pest control stems from over 10 years in the industry. With a master’s degree in entomology, she uses her knowledge and experience in chemistry, insects and pests to educate her customers.

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