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Bed Bugs in a Flat: How They Spread Between Neighbours

Sharing a building with other households can make bed bugs feel even more worrying. If you live in a flat or HMO, it is natural to be concerned about bugs moving between rooms and neighbours, especially when you cannot control what happens in other parts of the property.
Bed Bugs in a Flat: How They Spread Between Neighbours

How bed bugs move around flats and HMOs

Bed bugs do not fly or jump, but they can still travel surprisingly far. In multi-occupancy buildings they often move along building features and with people and belongings, rather than simply crawling across the floor from one door to the next.

Understanding these routes helps you focus your efforts on the things that make the biggest difference and avoid choices that accidentally spread the problem further.

  • Personal belongings: Bed bugs can hitchhike on bags, coats, bedding and soft furnishings carried between rooms or flats.

  • Communal areas: Corridors, stairwells and shared lounges can act like “motorways” if infested items are moved through them.

  • Walls and pipework: Gaps around pipes, skirting boards and electrical routes let bugs move between adjoining units.

  • Shared laundry: Laundries or drying rooms can spread bugs if infested items are handled or stored carelessly.

Spread via belongings and hallway traffic

Most long-distance movement in a building happens when people carry bed bugs without realising. Moving a mattress, sofa or suitcase from an infested room through a communal hallway can drop bugs or eggs along the way, which may then be picked up by others.

Even smaller items like rucksacks or laundry baskets can transport bugs between flats, especially if they are placed on shared carpets, seating or directly outside another person’s front door.

Movement through walls, pipe chases and voids

Bed bugs will explore cracks, gaps and voids around pipes, radiators and electrical trunking. In blocks of flats and HMOs, these features often connect several units, giving bugs concealed routes to new sleeping areas.

If one room has a heavy infestation, bugs may start to explore neighbouring units, particularly along shared walls behind headboards or around radiators and skirting boards.

Shared laundry and bed bug spread

Shared laundry rooms can be a risk when infested bedding or clothing is carried uncovered or left sitting in baskets and on surfaces. Bugs can fall off and wait in crevices or on soft furnishings for a new host.

High-heat washing and drying kills bed bugs, but the risk is often in the journey to and from the machine, not inside it. Careful bagging and handling is essential if you suspect an infestation.

Reporting early in a multi-occupancy building

Early reporting is one of the most helpful things you can do for yourself and your neighbours. Bed bugs are easier, cheaper and quicker to deal with when caught in one or two rooms than when they have had time to spread along a corridor or between floors.

If you rent, tell your landlord, letting agent or property manager as soon as you suspect bed bugs. In HMOs and purpose-built blocks, a coordinated response can prevent a small problem becoming a building-wide issue.

It is also worth learning what bed bug activity looks like, so you can raise concerns clearly. For a more detailed guide on common signs and what to look for on beds, skirting and furniture, see our bed bug identification and signs guide on our fleas and bed bugs service page.

Practical containment steps while you wait for treatment

If you are waiting for a professional visit, you can take some sensible precautions. The aim is not to do your own full treatment, but to limit spread and make professional work more effective.

Bagging bedding and clothing safely

Strip your bed carefully and place sheets, pillowcases and duvet covers straight into sturdy plastic bags in the room where they were used. Seal the bags before leaving the room to stop bugs dropping out in the corridor.

Wash bagged items on a hot cycle (60°C if the care label allows) and tumble dry on a high heat where possible. Once washed and dried, store clothes and linen in clean bags or sealed containers until after treatment.

Reducing clutter without spreading bugs

Clutter around the bed provides perfect hiding spots and makes treatments less effective. Tidy and organise, but do it carefully, keeping items in the same room rather than moving them into hallways or shared spaces.

If you need to dispose of things, avoid dragging infested furniture or mattresses through communal areas uncovered. Check with your pest professional for safe disposal advice and, if removal is needed, cover items in shrink wrap or heavy-duty plastic and seal securely before moving.

Isolating items and sleeping areas

Try to keep potentially infested items contained to one room. Store loose items in sealable boxes or bags rather than open piles or shelves. This helps limit harbourages and makes it easier for technicians to focus their work.

It is usually better to keep sleeping in the same room until professional advice says otherwise. Sleeping elsewhere can encourage bed bugs to spread in search of a blood meal, especially in shared buildings with adjacent rooms.

Guidance for landlords and property managers

For landlords and HMO managers, bed bugs are a building-wide challenge rather than a one-room issue. Taking a structured, calm approach helps protect tenants and the property while avoiding unnecessary disruption.

Recording cases and mapping affected areas

Start by documenting all reports you receive: which room or flat, the date of first concern, and any confirmed findings from a professional inspection. This creates a clear picture of how far the issue may have spread.

Note shared walls, stacked layouts and vulnerable links such as communal laundries or service risers. Technicians can then prioritise inspections of the most at-risk neighbouring units.

Coordinated treatment rather than one-off visits

In multi-occupancy buildings, treating just the unit that reports a problem often fails. A more effective approach is a coordinated plan that includes neighbouring flats or rooms, particularly those that share walls, ceilings or floors.

Work with a professional pest control company familiar with bed bugs in HMOs and blocks. A proper plan might involve phased treatments, follow-up inspections and clear preparation guidance for each tenant. You can read about common approaches on our fleas and bed bugs service page.

Clear, calm communication with tenants

Bed bugs can cause anxiety, embarrassment and tension between neighbours. Honest, non-blaming communication helps everyone cooperate. Explain that bed bugs are a building issue, not a sign of poor cleanliness, and that coordinated action gives the best chance of success.

Provide simple preparation checklists, confirm treatment dates early, and outline what tenants should and should not move through communal areas. Encourage tenants to report concerns quickly so you can address potential spread as soon as possible.

Next steps if you suspect bed bugs in your building

If you live in a flat or HMO and suspect bed bugs, early action and good containment are your best tools. Avoid moving furniture and mattresses through shared areas, keep bedding and clothing bagged on the way to laundry, and report issues promptly so a coordinated response can be put in place.

For tailored advice on your building and a structured plan that covers inspections, neighbouring units and follow-up visits, contact Pegasus Pest Solutions on 07501702101 to speak to us about an inspection and treatment plan.