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Signs of
rats
in the house.

The classic opener is heavy thumping in the loft after dark — heavier than mice, slower than squirrels.

Confidence rule — Capsule droppings plus night-time noise is rats almost every time. One on its own can be mice or squirrels.

◉ Four senses — what to check

See it. Hear it.
Smell it. Find it.

01See

Capsule droppings, 8–12mm

Dark, glossy when fresh, clustered along skirtings and behind appliances. A single rat produces 30–40 droppings a day, so volume builds quickly.

02Hear

Night-time thumping above the ceiling

Brown rats are nocturnal — most reports describe thumping, dragging or fighting noises between 9pm and 4am, usually directly above bedroom or living-room ceilings.

03Smell

Stale ammonia near skirtings

A persistent ammonia tang along skirtings or in the cupboard under the sink that doesn't shift after cleaning is rat urine soaking through plasterboard.

04Damage

Chewed cabling and pipework

Tooth marks on UPVC pipework, chewed plastic conduit, and frayed cable insulation in lofts. Chewed mains cable is a category-one fire risk.

◉ Where they shelter

Burrows and loft drey-style nests.

60–90mm burrow entrances near decking, sheds or compost bins outside; shredded loft insulation pulled into a hollow inside.

◉ When activity peaks

Rats are
active 9pm–5am, peak around midnight.

Time of activity is one of the fastest ways to confirm a species — daytime loft noise rules out rats, midnight kitchen scuttling rules out squirrels.

◉ What it sounds like

Press play.
Is this your noise?

Heavy, deliberate scurrying across loft floorboards, intermittent gnawing on timber and the occasional thump as a brown rat moves between joists. If you can hear footsteps with weight, it's almost always rats — not mice.

AI-generated reference recording · not a field recording · for identification only

Rats in the loft — 2am
Transcript / description

Heavy, deliberate scurrying across loft floorboards, intermittent gnawing on timber and the occasional thump as a brown rat moves between joists. If you can hear footsteps with weight, it's almost always rats — not mice.

◉ Urgency trigger

When to call today, not next week.

Daytime sightings, or droppings in a child's bedroom — both mean the population has outgrown its hiding places.

◉ Still not sure — rule these out

Often mistaken for rats.

◉ UK FAQ — rats

Questions UK households
ask about rats.

What are the first signs of rats in a UK home?
The classic opener is heavy thumping in the loft after dark — heavier than mice, slower than squirrels.
When are rats most active?
Rats are typically active 9pm–5am, peak around midnight.
When should I call a pest controller about rats?
Daytime sightings, or droppings in a child's bedroom — both mean the population has outgrown its hiding places.
What is rats activity commonly mistaken for?
Rats are most often confused with mice, squirrels. Use two pieces of sensory evidence — droppings plus sound, or smell plus damage — before you commit to a treatment plan.
Is it legal to treat rats yourself in the UK?
Rats are not a protected species in the UK and can be controlled without a licence, but you must use approved methods. The Prevention of Damage by Pests Act 1949 also obliges occupiers to keep premises free of rats and mice — councils can serve notice if they don't.
Is my landlord or me responsible for rats removal in a UK rental?
If you rent, the landlord is normally responsible for rats when the cause is structural (gaps in brickwork, broken air-bricks, drain defects, shared loft) or when the infestation pre-dates your tenancy. Tenants are usually liable when the cause is hygiene, food storage or items they brought in. Report it in writing first — that creates the paper trail councils and deposit schemes look for.
Will my UK council deal with rats for free?
Most UK councils still offer rats treatment, but coverage varies sharply. Around a third now charge £70–£180 per visit, some only treat rats and mice for free, and waiting lists in cities can run 1–3 weeks. A private BPCA-member controller is typically same-day or next-day and gives you a written guarantee, which councils rarely do.