Rodents move vertically along slabs via gaps tenants rarely tally in one glance. Seal these six structural classes before bait stations can measure suppression instead of transient traffic.

Entry classes highlighted

• Gaps around pipes under sinks and service stacks.
• Door saddles without brush or thicker thresholds.
• Vents and louvres missing welded mesh backing.
• Electrical chasing oversized for conduit bundles.
• Cracks in plaster and expansion joints climbing risers.
• Floor drains, utility pits, or open screed channels.

Footer prevention theme

Inspect routinely, seal with appropriate mortar or metal where code allows, guard drains and vents mechanically, reduce food clutter corridors—“prevent today, stay protected tomorrow” applies structurally before chemistry alone.

Structural defects belong in society tickets; photographed droppings timelines help supervisors prioritize mass proofing weekends.