A suspected bedbug problem should be reported promptly and investigated carefully. The first useful step is an accurate account of what has been noticed, not an immediate argument about blame. A landlord, agent and occupier need enough information to arrange a competent assessment and understand the next practical action.
Record the date, affected rooms and any relevant observations. Photographs may help, but do not treat an image alone as a professional identification. Ask a suitable pest-control provider to assess the problem and explain the recommended approach, including preparation and follow-up visits where needed.
Responsibility is not answered by a universal rule that the landlord or tenant always pays. Shelter’s England guidance explains that the cause and repair obligations can matter. The facts, agreement and applicable law should be considered before a final cost decision is made. Seek housing advice if that responsibility is disputed.
Agree a written treatment plan. Establish who books the contractor, how access will be arranged and what information the household needs before attendance. If there are children, pets, allergies or other relevant circumstances, raise those with the professional so that appropriate instructions can be given.
Avoid improvised chemical treatments or conflicting advice from several sources. Follow the competent provider’s instructions and ask questions when something is unclear. Moving items or disposing of furniture without advice may complicate the response, so check the practical steps before acting.
For a shared building, consider whether the managing agent or another responsible party needs to be involved. Keep communications factual and limited to what is necessary; the occupier’s circumstances should not become material for public discussion or accusation.
Retain reports, invoices and communications, and record the outcome of follow-up work. A clear evidence trail supports both an effective response and any later discussion about costs. This guide concerns organising the process; it does not diagnose an infestation, prescribe a pesticide or decide liability for an individual tenancy.
Source and further reading: https://england.shelter.org.uk/housing_advice/repairs/pests_and_vermin_infestations_in_rented_homes