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Cockroach Pest Control in London & the South East

Cockroaches are nocturnal, which is exactly why one sighting during the day usually means a much bigger population than you’d guess, they’re only out in the open when it’s already got crowded enough underneath the fridge or behind the skirting to force some of them out.

Crittorz treats cockroach infestations across every London borough and the South East, in houses, flats, and shared or communal buildings where they tend to spread fastest.

Quoted per property based on severity and access.

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Signs You've Got a Cockroach Problem

A live sighting, particularly during the day, is usually the clearest sign something's already established. Small dark droppings resembling coffee grounds near sinks, cookers, or behind appliances are common. A persistent musty odour in kitchens or bathrooms, and small brown egg cases in cracks or corners, round out the usual signs. Cockroaches favour warm, damp areas, kitchens, bathrooms, and service ducts in particular, and in blocks of flats they move between units through shared pipework more easily than most people expect.

Why This One Needs Professional Treatment

Cockroaches breed quickly and are genuinely resilient to general household cleaning products. In shared buildings, treating one flat while a neighbouring one stays untreated often just means they move back once general spraying wears off. Effective treatment usually needs a combination of approaches, gel baits, targeted spraying, and monitoring, applied consistently rather than a single spray-and-hope visit.

What's Included

Cockroach pest control treatment

Full inspection identifying nesting areas and entry routes

Targeted treatment using professional-grade gel bait and spray as appropriate

Advice on hygiene and storage changes that reduce reinfestation risk

Follow-up visits, since cockroach treatment often needs more than one round

Coordination across shared buildings where infestation is spreading between units

Cockroach Pest Control FAQs

Why do I only see them at night?

Cockroaches are nocturnal by nature and spend the day hiding in cracks around sinks, drains, cookers, and service ducts, only coming out once it's dark and quiet.

How many treatment visits does this usually take?

More than one, typically. Gel baits and monitoring work over a few weeks, and a single visit rarely clears an established infestation fully.

Is this safe for my kitchen and food storage?

Yes, we use products suitable for domestic properties and will advise on any temporary precautions around food storage during treatment.

I live in a flat, could this be coming from a neighbour?

Very possibly, particularly in older buildings with shared service ducts. Worth mentioning when you call, since treatment sometimes needs to be coordinated across more than one unit.

What can I do to stop it coming back?

Keeping food sealed, reducing damp, and prompt reporting of any new sighting all help. We'll give property-specific advice as part of the visit.

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Tell us what you've seen and we'll get someone out fast.

Request Cockroach Treatment →

Call 0203 488 6457 . Core coverage across every London borough and the South East, further afield on request.