Start With How Many Rooms Are Affected
The number of bedrooms in the house matters less than the number of rooms with signs in them. An inspection, or a careful look yourself at every bed frame, mattress seam and headboard, tells you whether it is one room or several. That single fact shapes the price and the route more than anything else.
Treating one room while a child’s bedroom next door has a handful of bugs is the most common way a job in a family house goes wrong. If there is any doubt about a room, it gets looked at.

What Each Route Asks of the Household
Chemical
A residual insecticide goes into seams, frames and skirtings. Each visit is one to two hours, and you are back in the rooms once they are dry. Because it does not reliably kill eggs, it is usually two visits and sometimes three, about 10–14 days apart. Before each one, you strip and hot-wash bedding and clear the floors in every treated room.
Across three or four bedrooms, that is several rounds of washing and clearing over a month, and the house has to stay treated in between: no hoovering the skirtings, no moving beds around.
Heat
Each room is brought to a temperature bedbugs cannot survive and held there, checked with a thermal camera for cold spots. It kills eggs, so it is usually one visit. That visit takes most of a day. Before it, heat-sensitive things come out: aerosols, candles, medication, vinyl, some electronics and plants. Pets must be out of the house, and you get the rooms back once they have cooled.
Weighing It Up for a Family
- Cost. Heat costs more than chemical. Treatments start at £220 and the figure depends on the rooms and the route; you get it on the phone before anything is booked.
- Disruption. Chemical is shorter visits spread over weeks. Heat is one long day and then it is done. Many families find one day out easier than a month of preparing rooms.
- Children’s rooms. With chemical, follow the instructions we give on the day about when children go back into a treated room. With heat, there is nothing left on surfaces unless a light residual is added at the edges.
- Pets. Both routes need pets managed. For heat they must be out of the house for the day.
- Spread. If several rooms are affected, heat treating them together removes the risk of bugs moving from an untreated room into a treated one.
There is no single right answer. A contained problem in one bedroom is often well suited to chemical. Several rooms, or a household that needs it finished quickly, usually points to heat. The heat versus chemical guide goes further into the decision.
Planning the Week Around It

For heat, pick a day when the house can be empty, arrange the pets, and use the removal list we send. The preparation guide sets out the week before. For chemical, book the follow-up at the same time as the first visit so it is not forgotten once the bites stop.
In the meantime, everyone keeps sleeping in their own beds. Moving the children in with you, or someone on to the sofa, usually takes the bugs with them.
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Bedbug Control Chadwell Heath — Questions
Is heat treatment worth the extra cost for a family house?
It often is when more than one room is affected or the household cannot manage repeated preparation. For one contained room, chemical is usually good value.
Do we all have to leave the house for heat treatment?
You need to be out of the rooms being treated, and pets must be out of the house. Most families plan the day elsewhere and come back once the rooms have cooled.
Can you treat just the bedrooms and not the living room?
Yes, if the living room shows no signs. If someone dozes on the sofa, check it first; our guide to bedbugs in the sofa explains what to look for.
How is the price worked out for a whole house?
On the number of rooms treated and whether it is heat or chemical. Treatments start at £220 and the figure is given on the phone first.
What if we are not sure which rooms have them?
Book an inspection first. Inspections start from £120 and stop you paying to treat rooms that do not need it.
Elsewhere in Barking and Dagenham
The other areas in the borough, each written around a different situation.
Bedbug Advice for Chadwell Heath
Picked for this page: the guides that go further on what matters for Chadwell Heath.

Heat or Chemical: How to Choose
Five questions to ask yourself. Answer them honestly and the right treatment picks itself.
Read more →
How Many Treatments Does It Take?
The bedbug life cycle sets the number, not the pest controller. Here is the timetable.
Read more →
How Long Does a Heat Treatment Take?
Why one London flat takes four hours and another takes ten, and what decides it.
Read more →
Bedbugs on Clothes, at Work and School
How likely it is to take bedbugs out of the house, and what to do with clothes and bags.
Read more →Bedbug Treatments in Barking and Dagenham
Every service has its own page for Barking and Dagenham: heat, chemical, hotels, commercial premises and inspections.
Covering Chadwell Heath
Tell Us About the Property
Say how many bedrooms have signs and whether you lean towards heat or chemical, and where in Barking and Dagenham the house is.