Short answer
Prep for bed bug work means laundering and bagging clothing on a hot cycle, clearing access to beds, furniture and baseboards, and leaving everything else where it is. The most damaging mistakes are moving belongings between rooms, sleeping elsewhere, and spraying anything, all of which spread the infestation before treatment starts.
Every company sends a prep list and most of them read like a chore chart with no reasons attached. Here is the same list with the reasoning, because understanding why makes the difference between prep that helps and prep that spreads the problem.
The core list, both methods
- Launder what the list specifies, hot. A hot wash and a full dryer cycle kills all life stages. The dryer does most of the work, so even dry-clean-only items can often go through a dryer cycle alone.
- Bag laundered items and keep them bagged until the job is finished, so nothing re-infests on the way back into a closet.
- Clear access to bed frames, baseboards, furniture edges and closet floors. A technician who cannot reach a harborage cannot treat it.
- Strip beds on the day, into bags rather than onto the floor.
- Vacuum thoroughly and empty the canister outside each time, which pulls some pupae and eggs out of fibers.
- Tell us about pets, fish tanks, birds, allergies and anyone with medical sensitivities before the visit, not on the day.
Heat treatment prep
Heat jobs keep most belongings in the room, which is one of the main reasons people choose them. What comes out is anything heat-sensitive: aerosols and pressurised containers, candles and wax items, medications, cosmetics, vinyl records, musical instruments, certain electronics and anything with a sealed battery you care about.
Beyond that, the useful prep is spacing. Items get opened up and spread rather than packed tight, because heat has to reach the middle of a drawer, a shoe or a stack of books. The technician usually handles that on arrival, and it goes faster if drawers and closets are not jammed.

Conventional treatment prep
Conventional jobs need more from you because the work happens in stages over weeks. Expect a more detailed laundering list, clear floor access along baseboards and around furniture, and instructions to keep the room in use rather than abandoning it.
That last part surprises people. You sleeping in your own bed is part of the strategy: it keeps bugs drawn to that room, crossing the treated zones and the interceptor cups under the bed legs, rather than dispersing to a couch or a spare room where nothing has been treated.
The four mistakes that cost the most
What not to do before treatment
- Do not move belongings to another room or to a relative's house; that is how a one-room problem becomes a three-room one
- Do not start sleeping elsewhere in the house; bugs follow the host and seed a second harborage
- Do not spray anything, including store products; foggers scatter bed bugs deeper into walls and into neighboring units
- Do not throw the mattress out yet; treatment plus an encasement saves most of them, and dragging an infested mattress through the house seeds the route
If you live in an apartment
Prep in a multi-unit building has an extra dimension: your neighbors. Bed bugs move through shared walls, plumbing chases and shared laundry, so a thorough treatment in one unit sitting next to an untreated one tends to need repeating.
Tell your property manager, and ask whether the adjoining and above-below units are being inspected. That single question changes the odds on the outcome more than anything on your own prep list.
After the treatment
Encasements go on the mattress and box spring, interceptor cups go under the bed legs, and both stay. They make re-inspection simple: a smooth white surface where one new bug stands out, and cups that produce a count rather than a guess.
Keep the laundered items bagged until the follow-up confirms the job is done, keep vacuuming, and report anything you see rather than waiting for the next scheduled visit. Verification is what closes a bed bug job, not the calendar.


