Bed Bug Heat Treatment | Bedbugs Gone

Heat is the method most people have heard of and the one most often misunderstood. It is not a portable steamer and it is not turning the heating up. It is specialist equipment that brings an entire room to a target temperature, holds it there long enough to reach insects inside mattresses, skirting and furniture, and is monitored throughout so the whole space reaches temperature rather than just the middle of it.

Heat compared to a chemical programme

Both work. They fail in different ways, which is what should decide between them.

Eggs. Heat kills eggs directly. Most chemical products do not, which is why a chemical programme needs spaced visits: the later applications exist to catch insects that hatch after the first one.
Visits. Heat is normally one visit per treated area. Chemical is typically two or three at minimum. That difference matters most in a household that cannot easily vacate repeatedly.
Speed to resolution. Heat ends the problem in a day. A chemical programme runs over weeks, during which the household is still living with bites.
Residual protection. This is where chemical wins. Heat leaves nothing behind, so a room reinfested the following week is exactly as vulnerable as before. A residual product keeps working, which matters in flats with a live reinfestation risk from neighbours.
Belongings. Heat treats possessions in place, including items that cannot be laundered. Chemical treatment leaves more of that to you.
Cost. Higher per visit for heat, closer than people expect across a whole job. See bed bug heat treatment cost.

In practice the two are often combined: heat to clear an established population quickly, with a residual product applied afterwards where reinfestation pressure justifies it.

When heat is the right call

The infestation is established, or has been running for months
A chemical programme has already been tried and failed
Insects have spread beyond the bedroom into living space
The property needs to be usable immediately, such as a let being turned around
Someone in the household is reacting badly to bites and weeks of ongoing treatment is not tolerable
There are belongings that cannot be laundered or discarded

Preparing for a heat treatment

Preparation is not optional busywork. A prepared room heats evenly and gets treated thoroughly; an unprepared one has cold spots, and cold spots are where survivors come from. We send instructions specific to your property, but the shape of it is consistent:

Remove anything heat-sensitive. Aerosols, pressurised containers, medicines, cosmetics, candles, vinyl records, musical instruments, valuable artwork, live plants and pets, including fish. We provide a full list in advance.
Leave furniture in place. Do not strip the bed or empty wardrobes into another room. Moving infested items around the property is the single most common way people spread bed bugs mid-treatment.
Open up, do not pack up. Drawers unlatched, wardrobe doors open, storage boxes opened. Heat needs to reach inside them.
Reduce dense clutter. Tightly packed piles insulate their own centres. Loosening them matters more than removing them.
Plan to be out. The property is unoccupied during treatment and for a period afterwards while it cools. We confirm timings before the day.

If you have already used a fogger or a shop-bought spray, tell us. Those products commonly push bed bugs out of the treated room into adjoining ones, and it changes where we survey.

Where K9 detection fits

Trained detection dogs find bed bugs by scent rather than by sight, which lets them identify live insects and viable eggs in places a visual inspection cannot practically reach: inside furniture, behind skirting, within wall voids.

The two situations where it earns its place are at the start and at the end. At the start, in a large property, an HMO or a block, it establishes which rooms are actually affected so treatment is scoped to the evidence instead of to a guess. At the end, it verifies that a treated property is genuinely clear, which is far more reliable than waiting to see whether anyone gets bitten again.

It is a diagnostic tool rather than a treatment, and it is not needed on a straightforward single-room case where the evidence is already plain.

After the treatment

Heat kills what is present on the day. It leaves no residue, so the honest follow-up conversation is about how the infestation arrived and whether that route is still open, particularly in a converted flat sharing voids with neighbouring units. We will tell you plainly if we think reinfestation pressure is the real problem rather than the treatment.

Get a quote

Tell us how many rooms are affected, how long it has been going on, and whether anything has already been tried. We will advise honestly on whether heat, chemical or a combination fits your case.

Frequently asked questions

How does bed bug heat treatment work?

Specialist equipment raises an entire room to a temperature lethal to bed bugs and holds it there long enough to reach insects inside mattresses, furniture and skirting. It is monitored throughout so the whole space reaches temperature rather than just the middle, because cold spots are where survivors come from.

Is heat treatment better than a chemical spray?

It depends on the case. Heat kills eggs directly and finishes in one visit, where a chemical programme needs spaced visits to catch newly hatched insects. Chemical leaves a residual that keeps working, which matters where reinfestation from neighbouring flats is likely. The two are often combined.

What do I need to do before a heat treatment?

Remove heat-sensitive items such as aerosols, medicines, candles, records and live plants, and take pets out. Leave furniture in place rather than moving infested items around, open drawers and wardrobes so heat can reach inside, and loosen dense clutter. We send a full property-specific list in advance.

Do I need to throw out my mattress or furniture?

Usually not. One of heat's advantages is that it treats belongings in place, including items that cannot be laundered. Discarding a mattress before treatment can make things worse, since carrying it through the property spreads insects on the way out.

What is a bed bug sniffer dog used for?

A trained detection dog finds live bed bugs and viable eggs by scent, in places a visual inspection cannot reach. It is most useful at the start of a large or multi-room job, to scope treatment to the evidence, and at the end, to verify a property is genuinely clear rather than waiting to see if anyone is bitten again.

Can bed bugs come back after heat treatment?

Heat kills what is present on the day but leaves no residue, so it does not protect against a fresh introduction. In converted flats sharing voids with neighbours, reinfestation pressure is often the real issue, and we will say so rather than simply retreating the same room.