What Does Four-Room Bed Bug Treatment Cost?
£580 — £220 for the first room plus three at £120, including follow-up visits.
As four separate jobs it would be £880. But four rooms is a substantial infestation, and it almost always means it has been present for months.
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Four Rooms – Quick Answer
What it means
Months, not weeks
The Arithmetic
| Room | Charge | Running total |
| Room 1 | £220 | £220 |
| Room 2 | £120 | £340 |
| Room 3 | £120 | £460 |
| Room 4 | £120 | £580 |
How It Reached Four Rooms
- It has been present for months, not weeks. Four rooms is not a fast outcome
- It started in a room nobody was checking — usually a guest room
- Or people moved repeatedly, each time taking it somewhere new
- Or it was mistaken for something else — a rash, fleas, an allergy
- Or a mattress or sofa was relocated more than once
- Frequently a combination of the first and the last
Four rooms is rarely four arrivals. It is one arrival, several months, and two or three well-meant decisions to move somewhere else.
Is It Really Four?
Worth establishing carefully, because £580 is a substantial commitment.
- Live bugs or fresh evidence in each room, not just bites
- Dark spotting on the mattress seam in each
- Or someone has slept there since the bites started
- Or an infested item has been in there
- We inspect every room as part of the visit and charge for the ones that need treating
- A room that inspects clear is not charged
We would rather treat three properly than four because you were not sure. The inspection settles it and costs nothing.
Why It Has to Be All Four at Once
- An untreated room reinfests the treated ones within weeks
- Bed bugs move toward carbon dioxide, so they follow people between rooms
- Doing it in stages costs more — each later visit starts again at £220
- And it takes longer, because the clock restarts
- The follow-up visits cover all treated rooms at no extra charge
Preparing Four Rooms
Substantial, and the single biggest factor in whether the £580 works.
- All four to the same standard — one half-prepared room undoes the rest
- Strip and hot-wash all bedding from every room, bag it sealed
- Clear floors and under beds throughout
- Do not move anything between rooms, including laundry baskets
- Empty bedside furniture and under-bed storage in all four
- Vacuum all four, emptying into a sealed bag outside each time
- Pull every bed away from the wall
- Allow proper time for this. Four rooms is most of a day
Every Room Total
1 room£220
2 rooms£340
3 rooms£460
4 rooms£580
Where to Sleep
- Keep sleeping in the treated rooms unless we tell you otherwise
- Do not move to a fifth room, an annexe, or a loft conversion
- Do not sleep on the sofa
- Do not stay elsewhere and take bedding with you
- You are what draws the bugs out of harbourage into the treatment
Read nextHow Do You Get Rid of Bed Bugs in a Stanmore House? →
How Long Four Rooms Takes
- Two to four weeks across the visits — the same as one room
- The follow-ups cover all four at no extra charge
- A longer-standing infestation may need an extra visit, which is included
- Bites can continue briefly after the first treatment
- Do not cancel a follow-up because things seem better
Afterwards
- Mattress encasements on every bed — worth it after a four-room job
- Keep beds away from walls
- Inspect every bed when you change the bedding, including spare rooms
- Check luggage after travelling; do not put a case on a bed
- Inspect second-hand furniture before it comes in
- A luggage rack in each guest room
For Landlords and HMOs
- A four-room job in a let property usually means it was reported late
- Published room pricing lets you authorise without a quotation stage
- Follow-ups included means one invoice
- Every occupied bedroom needs doing together — treating one in isolation rarely holds
- Coordination matters more than price — everyone preparing on the same day is the difference
- A written record supports any deposit discussion
Related Questions
Can I do two rooms now and two later?
The untreated rooms reinfest the treated ones, and each later visit starts again at £220. It costs more and works less well.
Is there a whole-house price?
The room ladder is the price. Four rooms is £580; if a fifth genuinely needs treating we will tell you.
What if a room inspects clear?
There is no charge for it. We would rather treat what needs it.
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