Pests in a rental property: a London landlord's guide

Few messages land worse than "there's something moving in the kitchen". For a landlord, a pest complaint is rarely just an inconvenience: left alone it turns into damage, a tenant who wants out, an argument over the deposit, and in the worst case a letter from the council.

The good news is that pests in rented property are manageable when you act quickly and treat the building rather than the room. This guide covers why London lets are exposed, what to do the day a tenant reports a problem, who is responsible under English law, and what stops it happening again.

Why London rentals get more pest problems

Shared structures. Converted terraces and purpose-built blocks let mice, rats and cockroaches travel through wall cavities, service risers, boxed-in pipework and drains. Treating one flat while the neighbouring one is untouched usually means the problem comes back.

Tenant turnover. Every move-in brings furniture, mattresses and suitcases. Bed bugs arrive this way far more often than people expect, especially in short lets and HMOs.

Bins and back yards. Communal bin stores, food waste and gaps under back doors are the most common rodent invitation in London, and they are rarely one tenant's fault.

Late reporting. Tenants often wait, worried they will be blamed or charged. By the time you hear, a couple of mice behind a kitchen unit has become a nest under the floor.

The problems we are called to most in London lets

• Mice and rats. Gnawed packaging, droppings in cupboards, scratching under floors. Rodents chew cables, which is a fire risk as well as a repair bill. See rat control and mouse control.
• Bed bugs. Bites in lines, dark spots on mattress seams. Stressful for tenants, and they spread between flats along shared walls and through furniture.
• Cockroaches. Usually German cockroaches in kitchens and blocks, often travelling from a neighbouring unit or a bin store.
• Fleas. Frequently found after a tenant with pets moves out — treatment between tenancies is one of the most common landlord jobs we do.
• Squirrels, wasps and moths. Lofts, roof spaces and carpets, particularly in older houses split into flats.

What a pest problem actually costs

• Void periods and lost rent when a tenant leaves early, or a new one walks away after a viewing.
• Repairs to wiring, insulation, pipework and furnishings.
• Deposit and repair disputes, which are decided on evidence — not on who sounds more certain.
• Council enforcement. Under the Housing Health and Safety Rating System, a local authority can assess pests as a hazard in a home and require the landlord to deal with it.
• Reputation. In a city where renters compare listings and reviews, "there were mice" follows a property around.

One treatment, booked quickly, is almost always cheaper than any of the above.

What to do when a tenant reports pests

1. Reply the same day. It calms the tenant and stops a small problem growing. We can usually attend the same afternoon if you call before midday.
2. Get it identified properly. Shop-bought sprays scatter cockroaches into neighbouring flats and rarely touch a rodent nest. A technician confirms what it is and where it is coming from.
3. Look beyond the flat. For cockroaches, bed bugs and mice, check adjoining units, risers and bin stores. Treating the affected area as a whole is what prevents the repeat visit.
4. Tell the tenant what happens next. Treatment date, how to prepare, and what to expect afterwards. With bed bugs, tenants can usually stay in the property.
5. Keep the paperwork. Complaint, inspection, treatment dates, follow-ups. We provide written reports you can file against each address, which is exactly what deposit schemes and councils expect to see.
6. Book the follow-up. Mice usually need two visits: the first treats and seals entry points, the second confirms activity has stopped and finishes the proofing. Bed bug work is dry steam followed by a residual spray, planned after inspection.

Who is responsible: landlord or tenant?

This is general information rather than legal advice, and your tenancy agreement matters, but in England the usual position is:

• The landlord is responsible for the structure and exterior and for keeping the property fit to live in. The Homes (Fitness for Human Habitation) Act 2018 lets tenants take action where a property is unfit, and a serious infestation can fall into that. Building-wide problems, gaps in the structure and drainage faults sit with the owner.
• The tenant is expected to keep the property reasonably clean, dispose of waste properly and report problems promptly.
• The agreement decides the rest. Say clearly who pays for routine treatment, how tenants report pests, and what happens where an infestation follows a tenant's own conduct.

Whatever the cause, dealing with it quickly and documenting it protects you far better than an argument about blame. For anything contested, take advice from a solicitor or your professional body.

Preventing the next one

• Treat between tenancies. An empty property is the easiest and cheapest time to work, and a clean start avoids inheriting the last tenant's problem.
• Proof the building, not the flat. Gaps around pipework, under doors, air bricks, loose soffits and roofline gaps.
• Fix leaks. Damp draws in cockroaches and rodents.
• Sort the bins. Lidded bins, a clean store, and a collection schedule that keeps bags off the floor.
• Plan visits across the portfolio. We schedule across multiple properties, liaise with tenants directly, and report per address.
• Give tenants a short guide. Food storage, waste, and how to report a problem early.

Working with Pest Stop Control

We treat rodents, bed bugs, cockroaches, fleas, moths, wasps, squirrels and ants for landlords, letting agents and HMO operators across London.

• Same-day callouts when you call before midday.
• Discreet by default: unmarked vehicles and plain workwear, standard for our landlord clients.
• A ballpark price on the phone, then a fixed price after inspection.
• A written guarantee: if the treated pest returns within the guarantee period, we re-treat free.
• RSPH Level 2 certified technicians, Checkatrade approved and fully insured.
• Written reports for every visit, ready for deposit disputes, council correspondence or your own records.

Managing several properties? We plan visits across a portfolio and deal with tenants directly, so you are not the one arranging access flat by flat. For commercial premises, including blocks with shops or restaurants below, the site survey is free.

Call 020 3411 2329 or send us the details and we will tell you what it needs before you commit to anything.