A cockroach on the floor at midnight came from somewhere warm and damp within a couple of metres. Finding that place is the useful part.
It means there is harbourage nearby — somewhere warm, damp and dark. Cockroaches forage across open floor and cupboards but do not live there.
Look at the appliances, the unit voids and the plumbing. The population is usually within a metre or two of where you saw one.
| What you find | What it suggests |
|---|---|
| One cockroach at night | Foraging — harbourage likely nearby |
| A cockroach in daylight | A larger population competing for space |
| Small dark droppings | A regularly used route or resting area |
| Dark smearing along edges | Heavier, established activity |
| Egg cases — brown capsules | Breeding on the premises |
| Shed skins | An active, developing population |
| A musty, oily smell | Well-established activity |
Several of these together, or any egg cases at all, mean the problem is beyond the point where cleaning alone resolves it.
See our complete service, published prices and treatment information.
View Cockroach Control Harrow →Fast dark insects in a kitchen are not always cockroaches:
A photograph settles it. Send one with your enquiry rather than guessing — we would rather establish it before a visit than after.
A kitchen sighting in a block may have a source outside your property — cockroaches move between units through service voids and pipework. Treat your flat, and tell the landlord or managing agent.
If there is a food business in the building, mention it. It is frequently relevant.
Not necessarily, but it means it is worth looking properly at the places listed above before deciding.
They are a hygiene concern rather than a direct danger — associated with contamination of surfaces and food, and with triggering asthma and allergy symptoms in some people.
Yes, with sensible hygiene. Store food sealed and wipe surfaces before preparation.
An entirely different problem, the same published approach — wasp nest treatment across Harrow is £90 fixed cost, guaranteed.
There is harbourage nearby — somewhere warm, damp and dark, usually within a metre or two.
Behind and under the fridge, around the dishwasher and washing machine, beneath kickboards, under the sink, and inside appliance housings.
Yes — it usually suggests a larger population competing for space.
Small brown capsule-shaped objects tucked into crevices. Finding them means breeding is happening on the premises.
No. It scatters the population into wall voids and adjoining rooms and makes professional treatment harder.
Yes — beetles and silverfish are commonly mistaken for cockroaches. A photograph settles it.
A hygiene concern rather than a direct danger — associated with contamination and with triggering asthma and allergies.
Anything in breached packaging or with droppings on or near it. Sealed tins and jars are fine once wiped.
Tell us what you saw and where. A photograph helps if you are not certain what it was.
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