Why cockroaches keep returning to an apartment
Cockroaches can keep returning when food, water, hiding places or access from another space remain. Cleaning matters, but a lasting plan also investigates the insect, the building and the conditions supporting the activity.

Begin with places that stay damp
Check for a dripping tap, condensation, wet cleaning items or a damp cabinet beneath the sink. If moisture returns after the area is dried, report the location and pattern rather than treating it as another cleaning task.
A repair request should be specific: name the fixture, describe when the area becomes wet and include a photograph if useful. Treatment and plumbing repairs may be handled by different people. Put both actions in the plan so an unresolved leak does not get lost between the pest visit and a maintenance appointment.
Further guidance: NYC Health: pest management tips for residents
Remove easy food and shelter
Look beyond the visible countertop. Opened dry goods, grease along accessible edges, crumbs near storage and uncovered waste can all deserve attention. Reduce unnecessary cardboard and clutter that makes inspection or routine cleaning difficult.
Choose a routine you can maintain daily. An occasional major cleanup is less useful if food and water remain available afterward. Avoid moving a heavy appliance or disturbing electrical connections to reach a hidden area; explain the access limitation when arranging the visit.
- Close food containers and clear spills promptly.
- Keep rubbish covered and empty it regularly.
- Dry accessible wet areas and report persistent leaks.
- Reduce clutter around the areas being monitored.
Further guidance: NYC Health: pest management tips for residents
Treat the apartment as part of the building
An apartment shares more than walls. Openings around pipes, utility spaces and nearby refuse areas can affect the scope of an investigation. Repeated activity near one opening is useful information, but it is not proof that a neighbor is the source.
Tell management where and when sightings occur. Ask who can arrange access to shared spaces and who is responsible for repairs. NYC Health recommends addressing the underlying conditions of pest problems, including waste management and building gaps, as part of integrated pest management.
Further guidance: NYC Health: pest control for building owners
Review the treatment plan instead of adding more spray
If activity continues, ask how the pest was identified, where monitors were placed and when the result will be reassessed. Record new sightings in the same way you recorded the original problem so the technician can compare locations and frequency.
Do not assume that additional products will improve an existing treatment. They may conflict with the instructions for that work. NYC Health advises against foggers and bug bombs for building pest control. Follow the specific preparation and aftercare directions you receive, and keep maintenance work connected to the pest plan. The next action should respond to the findings, not simply repeat the previous visit.
Further guidance: NYC Health: pest control for building owners