Cockroach Treatment London
Commercial & Domestic Cockroach Extermination
Cockroaches are among the most resilient and unhygienic pests found in UK properties. The two most common species in London are the German cockroach and the Oriental cockroach. Both carry and spread E.coli, Salmonella and Staphylococcus on every surface they touch, contaminating food preparation areas. They reproduce extremely rapidly — a single German cockroach can be responsible for over 30,000 offspring in a year. Infestations are notoriously difficult to eliminate without professional intervention due to their ability to develop resistance to over-the-counter products.
24/7 Available
Including bank holidays
Same-Day Response
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Fully Certified
COSHH & BPCA compliant
Guaranteed Results
Or we return free of charge
What's Included
Every treatment is carried out by a certified technician and includes:
How We Treat It
Our step-by-step treatment process, used by every Zeus technician on every visit.
Species Identification
We identify the species and assess the scale of the infestation, locating all harbourage areas — behind appliances, inside wall cavities, under sinks and in drainage areas. German and Oriental cockroaches require different treatment approaches.
Gel Bait Treatment
Professional-grade gel bait is applied directly into harbourage areas. Cockroaches feed on the bait and carry it back to the nest, creating a cascade effect that kills the entire colony including juveniles and egg cases.
Residual Spray
A residual insecticide is applied to floor edges, skirting boards, under appliances and all surfaces cockroaches cross, providing ongoing kill for weeks after treatment. ULV fogging is deployed for severe infestations.
Follow-Up & Confirmation
A follow-up visit at 7–14 days assesses bait uptake and confirms eradication. Sticky monitors are used to detect any residual activity. A written report is issued on clearance, satisfying Environmental Health requirements.
Frequently Asked Questions
How do I know if I have cockroaches?
Signs include small dark droppings resembling coffee grounds or black pepper, a strong musty oily odour, egg cases (oothecae) in corners and crevices, shed skins, and live cockroaches seen after dark. German cockroaches are 10–15mm, Oriental cockroaches are larger at 20–24mm.
Why are cockroaches so hard to get rid of?
Cockroaches are highly resistant to many over-the-counter products, reproduce rapidly, and hide in inaccessible areas. They can also develop resistance to specific insecticides over time. Professional-grade gel baits and insecticides rotate active ingredients to prevent resistance.
Can you treat restaurants and commercial kitchens?
Yes — we regularly treat commercial food environments. We carry out treatments discreetly outside trading hours and issue a full COSHH risk assessment and service certificate, which satisfies Environmental Health and Food Standards Agency requirements.
How long does treatment take to work?
Gel bait typically begins killing cockroaches within 24–72 hours. The cascade effect through the nest can take 1–2 weeks to fully eliminate the colony. A follow-up visit confirms complete eradication.
Do I need to vacate during treatment?
For gel bait treatment, no vacating is required. If a ULV fog or residual spray is applied, we recommend vacating for 2–4 hours while surfaces dry. We will advise you on specific precautions before we begin.
Please refer to our Terms & Conditions for full service description and payment terms.
Eliminate Cockroaches Today
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