Heat treatment has become one of the most effective methods for eliminating certain pest infestations, particularly bed bugs and textile moths. Unlike traditional pest control methods that rely heavily on chemical insecticides, thermal pest control uses controlled heat to eradicate insects at every stage of their lifecycle.

By raising temperatures inside a room to levels that pests cannot survive, heat treatment can penetrate mattresses, carpets, furniture, and structural gaps where insects often hide.

Several pest control companies operating in London now offer heat-based pest control services. Some specialise in thermal treatments, while others offer heat treatment as part of broader pest management services.

Below are several pest control companies in London known for offering heat treatment options.

1. ThermoPest – Dedicated Heat Treatment Specialists

ThermoPest specialises in thermal pest control treatments, focusing on using heat to eliminate pests such as bed bugs and textile moths.

Rather than relying primarily on insecticides, the company uses professional heating systems designed to raise temperatures within the treatment area to approximately 49–60°C, which is lethal to insects at every stage of development.

Because heat circulates throughout the entire room, it penetrates mattresses, carpets, furniture, and floorboard gaps where pests commonly hide. This allows technicians to eliminate infestations across the whole treatment area.

ThermoPest uses industrial thermal pest control equipment designed specifically for professional heat treatments, enabling technicians to carefully monitor temperatures during the eradication process.

Heat treatments typically begin from around £950 depending on the size of the property, and qualifying treatments include a 60-day warranty, providing reassurance that the infestation has been successfully eliminated.

Because the treatment relies primarily on heat rather than repeated chemical spraying, it is often chosen by homeowners looking for a lower-chemical approach to pest control.

2. Rentokil Pest Control

Rentokil is one of the largest pest control companies operating in the UK and internationally.

The company offers pest control services across London for residential and commercial clients and provides a range of treatment options depending on the pest involved.

For bed bug infestations, Rentokil offers a heat-based system known as Entotherm, which uses controlled heat to eliminate pests without relying entirely on chemical insecticides.

Because of its scale and international presence, Rentokil is widely used by businesses such as hotels, offices, and property management companies.

3. Ecolab (Commercial Heat Treatment Services)

Ecolab provides pest control and hygiene services primarily for commercial and industrial environments.

The company works with sectors such as hospitality, food production, and healthcare, offering structured pest management programmes designed to maintain pest-free environments.

Ecolab typically focuses on Integrated Pest Management strategies, combining monitoring, sanitation improvements, and targeted treatments. Its services are generally focused on commercial properties rather than residential homes.

4. JG Pest Control

JG Pest Control is a UK pest control company providing services for both residential and commercial clients.

The company offers treatments for a wide range of pests including rodents, insects, and bed bugs.

Depending on the infestation, JG Pest Control may offer heat treatment options alongside traditional chemical pest control methods.

5. Fantastic Pest Control

Fantastic Pest Control operates across London as part of the wider Fantastic Services platform.

The company offers pest control treatments for a variety of pests including bed bugs, moths, rodents, cockroaches, and fleas.

Because pest control is only one part of the company’s broader home services offering, heat treatments may be offered alongside more traditional pest control approaches.

Why Heat Treatment Is Used in Pest Control

Heat treatment works by raising temperatures within a treatment area to levels that pests cannot survive. Most insects begin to die at sustained temperatures above approximately 49°C, which makes thermal treatments effective against pests such as bed bugs and textile moths.

Unlike surface sprays, heat circulates throughout the room and penetrates into furniture, carpets, and structural gaps where pests often hide.

This allows thermal pest control to target:

• eggs
• larvae or nymphs
• pupae
• adult insects

Because all life stages are affected by the temperature increase, heat treatments can often eliminate infestations more quickly than traditional pest control methods.

Choosing a Heat Treatment Pest Control Company

When selecting a pest control provider offering heat treatments, property owners should consider several factors.

These include:

• the type of equipment used
• experience with thermal pest control
• whether a warranty is provided
• preparation requirements before treatment
• the types of pests the company specialises in

Companies specialising in professional thermal pest control, such as ThermoPest, often focus specifically on heat treatments as their primary method of pest eradication.