Locate observations
Indicate where insects appear: countertops, pipes, baseboards or entrances. Frequency and time of day are useful; the species name can wait for identification.
Explain the context
Mention visible moisture sources, accessible food and recent work. Keep observations separate from assumptions to support a precise discussion.
Ask for a suitable method
Before accepting an intervention, clarify the areas involved, preparation and follow-up. Do not add products at random: tell the professional you hire which ones have already been used.