The Moment It Cools, It Is Over
Heat has no residual whatsoever. The second the room returns to normal temperature, the treatment has stopped working and the room is exactly as vulnerable as any other room.
Heat-sensitive items come out first: aerosols, pressurized containers, medication, candles, vinyl records, some electronics, anything with a low melting point. We send you a specific list after the inspection, and the technician does a walk-through before anything is switched on.
Heaters go in, high-volume fans move air so heat reaches the same temperature in every corner, and remote sensors are placed in the coldest spots we can find. Wall voids, mattress cores and the underside of furniture are what we are actually measuring.
Air temperature rising is not the goal. Every sensor clearing the threshold and holding there is the goal. Furniture is moved and opened during the treatment so heat penetrates rather than being blocked, and the hold continues for several hours.
Sensor logs give a written record of what each part of the room reached and for how long. The room cools, we re-inspect, and the technician tells you when it is safe to move back in.
Before we leave, narrow spore bands go along the travel routes. This is the part that matters most and the part most heat companies skip. See why the residual is the point.
This is the part of the sales pitch other companies leave out, so we will put it in the middle of our own page.
Heat has no residual whatsoever. The second the room returns to normal temperature, the treatment has stopped working and the room is exactly as vulnerable as any other room.
Bed bugs move away from rising temperature. Some travel deeper into wall voids or into an adjoining unit, wait it out, and walk back into a room where nothing is left to stop them.
A perfect heat treatment does nothing about the neighbor, the guest, or the suitcase that brings bed bugs back next week.
Which is why we never sell heat on its own. Heat clears the room today; the Aprehend barrier holds it for the next three months and catches whatever retreated into a wall. Used together they cover each other's weaknesses. Used alone, heat is an expensive reset button.
Heat costs considerably more than a barrier treatment because it is equipment and labour intensive. For a lot of the calls we take, it is not the right answer, and we will tell you that before you spend the money. The inspection is what decides it.
Nobody and no animal stays in the space during treatment. Everyone leaves before heating begins and returns only when the technician confirms the room has cooled and is safe. Because heat is not a chemical, there is no product residue on surfaces afterwards.
Most household contents tolerate the temperatures involved, but a real list does not. Aerosols, medication, candles, cosmetics, vinyl, musical instruments, artwork and some electronics come out first. If you are unsure about an item, ask rather than guess.
Heating is monitored continuously, and equipment is placed to avoid overloading circuits or stressing finishes. In older buildings we assess the electrical supply before booking, because a treatment that trips the power halfway through is worse than no treatment.
Let us know about aquariums, houseplants, sprinkler heads, smart thermostats, and anything sentimental or irreplaceable. Also flag stored documents and photographs, which we would rather relocate than risk.
Plan on most of a day. Setup and bringing a space up to temperature takes a few hours, the hold itself runs for several more, then everything has to cool before re-entry. A single room is quicker than a whole apartment, but this is not a one-hour visit.
Yes, and that is its main advantage over most chemical treatments. Eggs are glued into seams and resist a lot of products, but they cannot survive sustained heat above the threshold. This is why a correctly executed heat treatment can clear a room in one visit rather than waiting out an egg cycle.
Aerosols and pressurized containers, medication, candles and wax items, cosmetics, vinyl records, musical instruments, artwork, houseplants, and some electronics. We send a specific list after the inspection and walk through it with you before anything is switched on. If you are unsure about an item, ask rather than guess.
The temperatures involved are below what normal building materials and most furniture tolerate, and the process is monitored throughout. Risk sits with specific vulnerable items rather than with the structure, which is why the removal list matters so much. Older buildings get an electrical assessment first, because a treatment that trips the power halfway through is worse than none at all.
It is faster and it reaches everything in the room on the day, including eggs. What it does not do is leave anything behind. A chemical or biological residual keeps working for weeks afterward and heat does not, so the honest answer is that they solve different halves of the problem. We pair heat with an Aprehend barrier for exactly that reason.
Yes. Heat provides no protection at all once the room cools. Bed bugs that retreated into a wall void during heating can return, and nothing stops a fresh introduction from a guest, a neighboring unit or a suitcase. The barrier we apply afterward is what covers that window.
Usually not. If it is one bedroom caught early, a barrier treatment will typically resolve it for a fraction of the cost. Heat earns its price on heavy, established or cluttered jobs and where a room has to be back in service immediately. We will tell you which situation you are in after the inspection.
Send the details and we'll come back to you. If it's urgent, call instead, because the phone is always faster.
Describe the property and how long the problem has been running. If heat is overkill for your situation we will say so, and quote the treatment that actually fits.