Bed Bug Heat Treatment Costs in London 2026
How much does bed bug heat treatment cost in London in 2026?
The answer depends on the size and layout of the property, how many rooms require treatment, access, preparation and the extent of the infestation.
At MothKill, professional bed bug heat treatment currently starts from around £750 for a single room, with larger treatments priced according to the property and treatment scope.
This guide explains typical MothKill pricing, what you're paying for, what can change the quote and how professional treatment compares with DIY bed bug heater rental.
🔥 MothKill Bed Bug Heat Treatment Prices
The figures below are guide prices based on typical MothKill treatments. Your final quote will depend on the individual property and treatment required.
For an accurate London quote, provide the postcode, property type, number of rooms requiring treatment and as much information as possible about the infestation.
What Does a Bed Bug Heat Treatment Quote Cover?
A professional heat-treatment quote shouldn't be judged only by the number of heaters being used.
The important question is whether the treatment is designed and monitored properly.
🔥 Professional Heating Equipment
MothKill uses professional heating equipment selected for the property and treatment area.
🌡 Temperature Monitoring
Multiple sensors are used to monitor conditions rather than relying on one room-air reading.
💨 Air Movement
Industrial fans help distribute heated air and reduce uneven heating within the treatment area.
👷 Technician Attendance
The treatment is actively managed rather than simply leaving heaters running unattended.
How Does MothKill Heat a Property?
MothKill's professional treatment uses an indirect diesel heater positioned outside the property.
Combustion gases remain outside while clean heated air is ducted into the treatment area.
Industrial fans are then used to move the heated air through the property while multiple sensors monitor temperatures at selected locations.
The aim is not simply to produce a high air temperature.
The objective is to achieve sufficient thermal exposure where bed bugs and eggs may actually be hiding.
Why Does Bed Bug Heat Treatment Cost So Much?
A proper heat treatment involves considerably more than hiring a heater and warming a bedroom.
The price can reflect:
- professional heating equipment;
- industrial fans;
- temperature-monitoring equipment;
- fuel;
- transport into London;
- setup and dismantling;
- technician time;
- continuous treatment management;
- property inspection; and
- the treatment area and complexity.
For larger properties, considerably more equipment and heat energy may be required.
What Affects the Cost in London?
Number of Rooms
A single affected bedroom is very different from a multi-room flat or entire house requiring treatment.
Property Size
Large rooms and high ceilings increase the volume of air and material that needs to be heated.
Layout
Multiple floors, corridors, separate rooms and unusual layouts can make heat distribution more complex.
Infestation Extent
If activity has spread beyond the original bedroom, the treatment scope may need to increase.
Access
Parking, stairs, property access and the practical route for heating equipment and ducting can affect how a London treatment is planned.
Property Contents
Furniture density, stored belongings and heat-sensitive items can influence preparation and airflow.
Why London Flats Can Be More Complicated
London has everything from modern apartments to converted Victorian houses, HMOs, mansion blocks and period properties.
In a flat, one important question is whether the infestation is genuinely confined to the property being treated.
Bed bugs can sometimes move between neighbouring areas within multi-occupancy buildings, and reintroduction remains possible after any successful treatment.
That means the correct treatment scope matters just as much as the heating equipment.
Is One-Room Treatment Always Enough?
No.
If evidence genuinely indicates that activity is confined to one bedroom, a targeted treatment may sometimes be appropriate.
But bed bugs can also establish themselves in:
- other bedrooms;
- sofas;
- chairs;
- adjoining rooms; and
- other regularly occupied resting areas.
Choosing the cheapest one-room quote is poor value if the infestation has already spread beyond that room.
Does Heat Treatment Kill Bed Bug Eggs?
Yes. Bed bug eggs can be killed by heat when they receive sufficient temperature and exposure time.
The same principle applies to nymphs and adult bed bugs.
This is one of the major practical advantages of heat treatment.
Room Temperature Isn't the Whole Story
A thermometer showing a high temperature in open air doesn't prove that every potential harbourage has received the same thermal exposure.
Furniture, mattresses and other materials heat at different rates. This is why professional heat treatment requires airflow, multiple temperature readings and sufficient exposure time.
Heat Treatment vs Insecticide Treatment
Both methods can have a place in professional bed bug management.
| Factor | Professional Heat | Insecticide Treatment |
|---|---|---|
| Bed bug eggs | Can be killed when sufficient thermal exposure reaches them | Effect depends on the active ingredient, application and exposure |
| Resistance | Conventional insecticide resistance does not protect bed bugs from lethal heat | Resistance can affect some bed bug populations and products |
| Residual insecticide | Heat itself leaves no residual insecticide | Some professional products provide residual activity |
| Follow-up | Depends on treatment scope, monitoring and circumstances | Multiple visits are commonly incorporated into treatment programmes |
| Preparation | Heat-sensitive items require careful preparation | Preparation depends on the treatment programme and product |
Heat isn't automatically the correct treatment for every property, and insecticides aren't automatically ineffective.
The best approach depends on the infestation, building and treatment objectives.
Does Heat Treatment Work in One Visit?
Professional heat treatment has the advantage of targeting multiple life stages during the same treatment.
However, it would be misleading to promise that every infestation in every building is automatically eliminated in one visit.
Success depends on factors including:
- preparation;
- treatment scope;
- heat distribution;
- temperature monitoring;
- infestation extent;
- untreated neighbouring areas; and
- whether bed bugs are subsequently reintroduced.
How Long Does Bed Bug Heat Treatment Take?
For MothKill, heat treatment is generally an all-day process.
Time is needed for:
- equipment setup;
- controlled heating;
- air circulation;
- monitoring different locations;
- maintaining the required treatment conditions; and
- equipment removal afterwards.
MothKill's professional treatments aim for high treatment temperatures with a substantial monitored lethal hold period, rather than declaring success as soon as the room air becomes hot.
Read: How Long Does Bed Bug Heat Treatment Take? .
Can Heat Treatment Damage Furniture?
Most normal household contents can tolerate properly managed heat treatment, but not everything should simply be left in place.
Particular care may be required with:
- laminated or MDF furniture;
- plastic blinds;
- plastic clothes rails;
- aerosols;
- pressurised containers;
- candles and wax products;
- medicines;
- certain electronics;
- delicate artwork; and
- other heat-sensitive possessions.
This is why preparation instructions should be followed before treatment.
See the Bed Bug Heat Treatment Preparation Checklist .
Bed Bug Heater Rental in London
For customers who want a lower-cost alternative to a fully managed professional treatment, MothKill also offers DIY bed bug heater rental packages from £895.
The hire uses professional equipment rather than small domestic electric heaters.
Depending on the package and property, equipment can include:
- indirect diesel heating equipment;
- heat-resistant ducting;
- industrial fans;
- temperature sensors and monitoring equipment;
- support and operating guidance; and
- other equipment required for the setup.
Suitability depends on the property, access and treatment requirements.
Learn more: Bed Bug Heater Rental .
DIY Heater Rental vs Professional Treatment
| DIY Heater Rental | Professional MothKill Treatment | |
|---|---|---|
| Starting price | From £895 | From £750 for a one-room treatment |
| Equipment | Professional heat equipment supplied | Professional equipment supplied and operated |
| Setup | Customer follows supplied guidance | MothKill manages the treatment setup |
| Monitoring | Customer follows monitoring instructions | MothKill monitors treatment conditions |
| Best suited to | Suitable properties where the customer is confident managing the process | Customers wanting the treatment professionally managed |
Is the Cheapest London Heat-Treatment Quote the Best Value?
Not necessarily.
Two companies can both advertise “heat treatment” while providing very different treatment scopes.
Before comparing quotes, ask:
- Which rooms are actually included?
- What type of heaters are being used?
- How are temperatures monitored?
- How many monitoring points are used?
- Is industrial air movement used?
- How long is the treatment managed?
- Is follow-up included?
- Is there a warranty and what are its conditions?
What About Very Cheap Spray Treatments?
A professional insecticide programme can be effective when it is correctly designed and applied.
The problem is comparing a comprehensive heat treatment with a cheap single spray as though they are equivalent services.
Ask how many visits are included, what areas are treated, whether follow-up is provided and what happens if activity continues.
Bed Bug Heat Treatment for London Landlords
Heat treatment can also be useful for landlords, letting agents and property managers where reducing disruption and treating an established infestation promptly are priorities.
Rental properties can present additional issues including:
- tenant changeovers;
- multi-room infestations;
- HMOs;
- adjacent flats;
- furnished accommodation; and
- the need to coordinate access and preparation.
Read our guide to bed bug heat treatment in London .
How to Get an Accurate MothKill Quote
Rather than relying on a generic online calculator, send us enough information to understand the property.
Useful information includes:
- London postcode;
- property type;
- number of bedrooms;
- number of rooms where bed bugs have been found;
- whether the property is a flat, house or HMO;
- how long activity has been noticed;
- previous treatments; and
- photographs where useful.
This makes it much easier to quote for the treatment you actually need.
Bed Bug Heat Treatment Cost London FAQs
How much is bed bug heat treatment in London?
MothKill currently charges from around £750 for a one-room professional treatment. Typical larger treatments include around £950–£995 for two rooms, around £1,250 for three rooms and around £1,450 for a five-room flat. These are guide prices and the final quote depends on the property.
How much does a whole flat cost to heat treat?
It depends on the number and size of rooms. As a guide, MothKill has priced five-room flats at around £1,450, but every property should be assessed individually.
Why is professional heat treatment expensive?
The cost reflects specialist heating equipment, fans, monitoring equipment, fuel, transport, setup, technician time and the need to establish and maintain suitable thermal conditions throughout the treatment area.
Does heat treatment kill bed bug eggs?
Yes. Bed bug eggs can be killed when sufficient thermal exposure reaches them. This is why temperature distribution, monitoring and exposure time are important.
Is heat treatment guaranteed to work in one visit?
No responsible treatment should be described as automatically guaranteed in every situation. Results depend on preparation, treatment scope, heat distribution, infestation extent and the risk of bed bugs surviving in untreated areas or being reintroduced.
Is heat treatment better than insecticide?
Heat has important advantages, including the ability to kill multiple life stages during the treatment without relying on insecticide susceptibility. Professional insecticides can also be effective and may form part of an integrated treatment strategy.
Can I hire bed bug heaters instead?
Yes. MothKill offers DIY bed bug heater rental packages from £895 for suitable properties. Professional treatment is the better option for customers who want MothKill to manage the heating and monitoring process.
Do you cover London?
Yes. MothKill provides professional bed bug heat treatment in London as part of its wider service area.
The Bottom Line
Bed bug heat treatment in London isn't a one-price-fits-all service.
For MothKill, professional treatment currently starts at around £750 for one room, with larger treatments commonly ranging upward according to the number of rooms, property size, layout and treatment requirements.
When comparing quotes, don't look at price alone.
Ask what is being treated, what equipment is being used, how temperatures are monitored and what support or follow-up is included.
A properly planned treatment is better value than paying for the wrong treatment twice.
Need a London Bed Bug Heat Treatment Quote?
Tell MothKill your postcode, property type and how many rooms are affected and we'll provide a quote based on the actual treatment required.