The short answer
Bed bug treatment is the most variable of the common pests. A chemical programme typically costs around £300–£900 for a one or two-bedroom property, spread over two or three visits, because bed bugs and their eggs are hard to clear in one go. Heat treatment, which raises a room to a temperature that kills all life stages, is usually higher — commonly £750 upwards for a flat or room and more for larger homes — but it can clear an infestation in a single controlled visit. Which is better value depends on the size and spread of the infestation; for established or widespread cases, heat's single-visit approach can avoid the repeat costs of a chemical course.
Bed bugs are one of the hardest household pests to clear, so treatment is rarely a single cheap visit. The two main routes — chemical and heat — trade off cost against speed and disruption. The figures below are typical ranges for guidance.
Typical UK figures
- Chemical programme (1–2 bed)~£300–£900
- Chemical, per visit~£150–£300
- Heat treatment (flat/room)~£750+
- Visits — chemicalusually 2–3
- Visits — heatoften one controlled visit
Chemical versus heat treatment
Chemical treatment uses professional insecticides applied over two or three visits, allowing for eggs that hatch between treatments. It is usually the lower upfront cost but takes weeks and can need extra visits if the infestation is heavy or the bugs are resistant. Heat treatment raises the whole room to a temperature lethal to bed bugs at every life stage — adults, nymphs and eggs — in a single carefully controlled visit, which avoids repeat treatments but costs more upfront. For a widespread or stubborn infestation, the single-visit certainty of heat can work out competitive once repeat chemical visits are counted in.
| Method | Typical cost | Visits | Notes |
|---|---|---|---|
| Chemical programme | ~£300–£900 | usually 2–3 | lower upfront, takes weeks |
| Chemical, per visit | ~£150–£300 | each | allows for eggs hatching |
| Heat treatment | ~£750+ | often one | kills all life stages in one visit |
Indicative UK figures for guidance; heat treatment of larger or complex homes runs higher. Sourced UK guidance: Checkatrade and trade cost guides.
Why bed bugs usually take more than one visit
Bed bug eggs are resistant to many sprays and can keep hatching for a week or two after a treatment, which is why a chemical programme is normally two or three visits — the follow-ups catch newly hatched bugs before they breed. Heat gets around this by killing the eggs as well in one go, but it needs the room prepared and heat-sensitive items removed. Whichever route you take, success depends on preparation and follow-up, so ask the technician what you need to do between visits and what guarantee, if any, applies.
Frequently asked questions
How much does bed bug treatment cost in the UK?
A chemical programme typically costs around £300–£900 for a one or two-bedroom property over two or three visits. Heat treatment is usually higher, commonly £750 upwards for a flat or room, but can clear the infestation in a single controlled visit.
Is heat or chemical treatment better for bed bugs?
Chemical is usually lower upfront but takes two or three visits over weeks. Heat costs more upfront but kills all life stages, including eggs, in one controlled visit. For widespread or stubborn infestations, heat's single-visit approach can be competitive once repeat chemical visits are counted.
Why do bed bugs need more than one treatment?
Bed bug eggs resist many sprays and keep hatching for a week or two, so a chemical programme is normally two or three visits to catch newly hatched bugs. Heat avoids this by killing eggs in one visit, but needs the room prepared first.
Sources & further reading
Figures on this page are typical UK ranges drawn from published sources and depend on your specific situation. They are guidance, not a quotation.