Cockroach Control London

Cockroaches are a serious public health pest and among the most resilient insects on the planet. London’s warm, humid kitchens, restaurant back-of-house areas, and food business basements provide ideal conditions for German cockroach (Blattella germanica) — by far the most common species in the city. Oriental cockroach (Blatta orientalis) is also found in London, particularly in basement flats, drain systems, and older residential buildings.

Cockroaches contaminate food and surfaces with bacteria including salmonella, E. coli, and listeria. They produce allergens that exacerbate asthma and cause skin irritation. For food businesses, a cockroach sighting can mean an immediate EHO closure notice and lasting reputational damage. For residential tenants and homeowners, an established infestation causes real distress and can be difficult to eliminate without professional intervention.

The critical factor with cockroaches is speed. A single female German cockroach can produce hundreds of offspring in a matter of months. The longer an infestation is left, the deeper it becomes entrenched in the warm, humid voids behind equipment, under fridges, and within service ducts — and the more difficult and expensive it is to eradicate.

Signs You Have a Cockroach Problem

Sightings: Cockroaches seen scurrying away when lights are switched on in a kitchen or bathroom — particularly at night — almost always indicate an established infestation, as cockroaches avoid light
Droppings: Dark, pepper-like droppings on shelves, inside cupboards, behind appliances, and around pipe entries
Egg cases: Brown, pill-shaped egg cases (oothecae) behind appliances, in cracks, and within wall voids
Smear marks: Dark smear marks along wall-floor junctions and around pipe penetrations, particularly in damp areas
Musty odour: A distinctive musty, oily smell that intensifies in heavily infested areas — particularly food preparation areas and basements

Treatment Process

Inspection and identification: Our technician carries out a thorough inspection — focusing on kitchens, bathrooms, basements, and all areas with warmth, moisture, and food. We use monitoring traps to confirm the extent of the infestation and identify hot spots before treatment.
First treatment: We apply a combination of gel bait (placed in harbourage areas where cockroaches feed and shelter), insecticidal spray (to surfaces and voids), and insect growth regulator (IGR) to disrupt the breeding cycle. Treatment is highly targeted to minimise product exposure in food areas.
Follow-up visits: A second visit 10–14 days later assesses progress and carries out any required re-treatment. Most London properties require 2 visits; persistent or extensive infestations may need a third. We continue treatment until the infestation is fully resolved.
Compliance documentation: For food businesses, we provide a written pest control report suitable for EHO inspection, detailing the infestation level, treatment applied, and recommendations for structural improvements to prevent re-infestation.

Why Choose London Pest Control Team?

Our BPCA-accredited technicians have specific experience treating cockroach infestations in London’s food businesses and residential properties. We understand the urgency involved for food operators facing regulatory scrutiny, and we can prioritise same-day attendance for commercial clients. All treatments use UK HSE-approved products and comply with food safety legislation.

We provide detailed reports, work discreetly in occupied premises, and back every programme with our 3-month guarantee. We serve Westminster, Lambeth, Newham, and all 33 London boroughs.

Cockroach Control Pricing in London

Cockroach treatment is a multi-visit programme and priced accordingly. London’s food business sector is particularly well-served by our commercial contracts.

Treatment	Price Range
Residential — 2-visit programme	£150–£220
Residential — 3-visit programme	£200–£300
Commercial (food business) — initial programme	£200–£300
Ongoing commercial contract (monthly)	from £100/month

All prices include VAT. For commercial pest control contracts, see our commercial pest control page.

Frequently Asked Questions

Why are cockroaches so hard to eliminate? German cockroaches in particular are highly resistant to many amateur insecticides and can develop resistance to products used repeatedly. They hide in inaccessible voids and their eggs are protected inside the egg case until hatching. Professional gel baits and IGRs — unavailable to the public — are significantly more effective.

Can I have cockroaches if my property is clean? Yes. Cockroaches are attracted to warmth and moisture as much as food. They can be introduced via infested deliveries, second-hand appliances, or from a neighbouring property through shared service ducts. Cleanliness helps but does not prevent infestation.

Will I need to close my food business during treatment? In most cases, no. We time visits to minimise disruption — typically outside service hours — and use food-safe products that allow normal operation to resume quickly. We will advise on any specific closures needed based on the treatment type.

How do I prevent cockroaches coming back? Seal gaps around pipes and cables, fix dripping taps and leaking waste pipes, remove food debris promptly, and store food in sealed containers. We provide a detailed aftercare sheet after treatment. Our 3-month guarantee covers any recurrence during that period.

Cockroach problem? Act fast. Call 020 3966 6100 for same-day assistance, or get a quote online. We serve Westminster, Lambeth, Newham, and all 33 London boroughs.