Rat Burrow Control & Exclusion in Chicago

Our 4-Step Rat Burrow Protocol

1. 1. Inspect and map active burrows

   We look for fresh digging, loose soil, tracks, droppings, and worn paths between burrow openings and nearby food or shelter. We document the openings and where activity is heaviest so we can track what changes from visit to visit.

2. 2. Return every 1–3 days to reduce activity

   When we confirm an active burrow, we begin an intensive rodent control program. A technician returns every 1–3 days, depending on the level of activity, to reassess the affected areas and adjust control measures as needed. We look for reduced activity over three consecutive days before moving to exclusion.

3. 3. Close and reinforce the burrows

   Once activity has slowed, we close the identified openings and reinforce vulnerable areas with rock or gravel and galvanized hardware mesh, where appropriate. This makes it harder for rats to dig back through the same spot. If we find nearby building entry points, such as gaps around pipes or damaged vents, we document those separately so they can be addressed as part of the exclusion plan.

4. 4. Monitor and move to monthly or quarterly protection

   After closure, we return to check for fresh digging, disturbed gravel, reopened holes, and activity elsewhere on the property. If activity resumes, we adjust the control plan before moving to routine maintenance.

   Once activity is under control, we recommend a monthly or quarterly rodent monitoring plan based on the property’s risk. Monthly visits are a good fit for properties with recurring activity or ongoing pressure from alleys, dumpsters, or neighboring buildings. Quarterly visits may be enough for lower-risk properties where activity has stayed quiet. On each visit, we check previously treated burrows, look for new digging, and flag building entry points that need attention.