Tell the technician exactly what you used, when and where, even if it seemed ineffective. Product names, label photographs and treated surfaces are more useful than “I sprayed everywhere”. Stop adding or combining products while you wait for advice.
Reconstruct the sequence
Gather packaging or photograph the complete label, including product name, active substance where shown and authorisation information. For each use, note the date, room, item or surface and whether people or pets re-entered according to the label. Do not guess quantities you cannot remember; mark them unknown.
Add non-product actions such as steam, laundering, vacuuming, mattress covers, discarded furniture or a change of sleeping room. These actions can move, remove or alter evidence and affect the inspection plan. They do not prove why activity continued.
Two aerosol applications to a bed frame and a fogger used in the room are different history. List them separately. If a product was applied to bedding, clothing, sockets or another unusual surface, state that clearly without repeating it to “finish the job”.
Preserve what remains
Keep any specimen safely labelled with room and date. Record fresh property signs near sleeping and resting areas. Do not rely on skin marks for identification, and use healthcare advice for symptoms. Keep open bags, bedding and furniture in their original rooms so the inspection record remains clear.
HSE says biocides must be suitable for the intended use, their labels must be followed and members of the public must not use professional-only products. It also says users should note product and active-substance details if an accident or illness occurs and seek medical advice. The technician needs your accurate history to decide what can safely happen next.
Previous use does not prove product resistance, prove bed bugs or show the extent. The next step may be identification, inspection, monitoring or a revised treatment proposal.
Call The City Pest Company on 0203 393 2338 with the product list and current evidence. See bed-bug treatment in London for service context.
FAQs
Should I hide a failed DIY attempt?
No. Accurate product, date and location information supports safer planning.
Can I apply one more product before the visit?
Do not combine or repeat treatments without product-specific instructions and professional advice.
What if I threw away the packaging?
Write down the product name, retailer, approximate date and anything else you can verify. Do not invent missing detail.
Sources and further reading
External references may contain pest or skin photographs.
