Cockroaches are the UAE's default pest complaint, and the treatment method is a reliable quality signal. German cockroaches, the small fast ones that colonise kitchens, are best handled with gel bait placed in hinges, under counters and behind appliances. Gel works because roaches carry the bait back to the nest and poison the colony, it needs no evacuation, it leaves no odour, and it keeps working for weeks. A company that reaches straight for a broadcast spray in a kitchen infestation is often choosing the method that looks dramatic over the one that works.
Spraying has its place. American cockroaches, the large ones that come up from drains, manholes and garbage rooms, respond to residual spray barriers around entry points, drain treatments and perimeter work. A thorough visit for a typical apartment combines both: gel in food areas, targeted spray at entry routes, and dust or foam in wall voids where needed. Expect the technician to inspect first and explain what species he is treating, because the answer changes the whole plan.