A professional inspection should not start with a product. It should start with a question: what is actually happening in the building? Different species may leave similar traces, while access points, moisture, food, recent building work or moved belongings can explain the same complaint in different ways. Understanding the context reduces unnecessary treatment.
Before the visit: information that helps
At first contact, explain where and when the problem appeared, how often it occurs and how many rooms are involved. Clear photographs, dates and recent changes — travel, renovation, second-hand furniture or a water leak — are useful. Mention children, pets, aquariums, sensitive occupants and any food-related activity.
A dependable estimate may require an on-site visit: a photograph rarely reveals the full extent, entry routes and concealed conditions.
During the inspection
The technician reconstructs the timeline, verifies signs and examines areas consistent with the suspected organism. These may include thresholds, joints, pipework, spaces behind furniture, utility rooms, cellars and the exterior. A flashlight, inspection mirror, measuring instruments or monitoring devices are used as appropriate.
The aim is not simply to find a specimen. It is to establish how it entered, what supports it, how far the issue extends and which constraints the premises present.
What a clear plan should contain
Confirmed identification or a monitoring plan when the evidence is not yet conclusive.
Affected areas and contributing factors.
Preventive and physical measures, with chemical treatment only when needed.
Required preparation, timing, access and safety precautions.
Follow-up checks and clear criteria for assessing results.
The quotation should define what is included and explain why the proposed method suits the case. Instant promises without inspection, or one standard treatment for every pest, deserve caution.
Prepare without removing the evidence
Avoid deep cleaning, sprays and moving furniture immediately before the visit unless instructed otherwise. Make walls and utility areas accessible, but do not dismantle anything on your own. Keep photographs, sealed samples and a floor plan available if the building is complex.
After treatment
The work continues with agreed corrections and monitoring. Sealing a route, changing food and waste storage or eliminating moisture may be as important as treatment. A follow-up assesses data and signs rather than relying only on a temporary absence of sightings.
TIsistemo provides discreet inspections in Ticino, Mesolcina and the Calanca valley, explains each decision in plain language and matches the response to the real problem.
Sources and further reading
For responsible biocide use and qualified professional support, see the Swiss Federal Office of Public Health and the Canton of Ticino.
