Mice in a Flat: When Cleaning Is Not the Fix

Mice in a flat are not a housekeeping failure. They are an access problem. There is a gap somewhere in the structure, and your flat is on the other side of it with food in it. That distinction decides who has to act, what you should be buying, and why the same flat keeps getting them back.

Your flat is one compartment in a larger building

The routes nobody else uses

A block is not a stack of sealed boxes. Pipes, cables and ducts run vertically through service risers from the basement to the top floor. Ceilings and dry lining leave voids. Kitchen units sit against walls that were drilled through by whoever fitted the plumbing. Corridors connect everything, and at ground level there is usually a bin store.

Mice use all of it. They live in the parts of the building nobody enters, and they come into flats to eat. Which means the population that is bothering you is not really yours. It belongs to the block, and several of your neighbours are probably having the same week you are.

Why one flat baiting alone does not hold

This is why treating one flat on its own is treating a symptom. Bait in your kitchen kills mice that come into your kitchen. It does not touch what is living in the riser two floors down, and that is the thing that keeps refilling the space you just cleared.

The bill depends on which side of a boundary you live

Councils do not treat mice and rats the same way, and the two boroughs either side of the Lea do not price mice the same way as each other.

What each borough charges

Why the two figures are not comparable

The two headline numbers are not like for like, and neither borough is straightforwardly the cheaper one. One figure buys a visit and the other buys a course of them, so which works out dearer depends entirely on how many visits your flat turns out to need.

Proofing is the work, poison is the tidying up

Ask any pest controller what actually ends a mouse problem and you will get the same answer: close the holes. Bait reduces numbers. Proofing decides whether the numbers come back.

What proofing actually involves

In practice that means sealing gaps where pipes pass through walls and floors, filling holes behind kickboards and inside base units, repairing damaged airbricks and vents, fitting brush strips or bristle seals to doors that do not meet the floor, and making the bin store close properly. A bin store propped open by a dumped mattress or sofa never closes, so clearing bulky items away properly is part of the proofing job rather than a separate errand.

The council treats, it does not proof

Here is the part that catches people out.

Leave the glue boards alone

Who has to pay for what

If you rent

The Tower Hamlets renters’ charter reduces it to a single test: did the mice get in through disrepair, or through you? A hole in the wall or badly fitted pipework lands on the landlord, and the treatment goes on their bill along with the repair. Rubbish left out lands on you. Almost every argument about a mouse problem in a rented flat is really an argument about which of those two a particular kitchen is, which is why a photograph of the gap under the sink is worth more than a long complaint letter. That is the same disrepair reasoning that decides who fixes damp and mould in a rented flat, and it is worth reading the two together if your landlord is slow on both.

The charter also sets out what happens if a landlord will not act, but it is conditional rather than automatic. Where the infestation is a serious risk to your health or safety, the charter says the council can step in, and one of the things it can do is serve a notice ordering the landlord to deal with the problem.

The housing standard in the background

There is a housing standard behind all of this, and it gets overstated in both directions, so it is worth being precise about its force. Freedom from pests sits in the government’s HHSRS guidance for landlords and agents as a baseline indicator. Baseline indicators are guideline measures rather than mandatory standards, which means a flat with mice in it is not a flat automatically in breach of anything. What it becomes is a deficiency somebody has to assess. Useful to cite in a letter, then, and not something to wave at a landlord as though it settled the question on its own.

The duty running the other way

The duty is not all one way. Once mice are living in the place in substantial numbers, the Prevention of Damage by Pests Act 1949 puts the occupier under an obligation to tell the council in writing. Reporting is not optional politeness, and doing it in writing creates the dated record that makes every later conversation with a landlord or a managing agent shorter.

The order that actually works

Where cleaning actually fits

Cleaning is step five on that list, and it is genuinely worth doing once. Behind and beneath kitchen appliances is where spillage collects, and it is exactly the area that feeds a population you are otherwise paying to poison. That is the work a one off deep clean of the kitchen is for, and buying it once after the gaps are sealed is very different from buying it every month while they are still open.

What cleaning will not do is any of steps one to four. If someone tells you a recurring mouse problem is a cleaning problem, they are either selling cleaning or repeating something they heard. Cleaners are not pest controllers, and no schedule of cleans closes a hole in a wall.

Get it reported, get the block treated, get the gaps closed. Then book the clean, and it will hold.