Residential spaces and commercial spaces are very different. Pest control companies are very aware of these differences but laymen may not realize the causes of some infestations in places that seem out of place, like the tenth floor of an office kitchen while the rest of the building has no signs of any cockroach infestation. How is that possible? don’t they have to come into the building somehow? In the old days, back in the 1800s, it was truly believed that Black Flies, the kind who lay eggs in rotting meat, where demonic creatures that did not breed but were literally born from the raw meat. Mainly because the grub form of a black fly is maggots and people in those times did not realize that maggots are baby black flies. This continues in the modern-day as many people will wonder how they got cockroaches from that microwave over they picked up off the street or how their friend’s house had cockroaches and now suddenly so do you.

Now while it is very annoying there is no reason to fire the person or to take drastic measures. The cockroaches already in the kitchen can be killed off using any number of domestic products including soap like boric acid. What is most important is sealing off the drain at a lower point, you will need to hire a plumber for this, and inserting an insect filter, its a strong steel mesh in a circle that can be inserted into a pipe to block access from cockroach, other water-loving insects, and even rats.
If you find the cockroach issue to be too severe you can also call in a professional exterminator who is licensed to use powerful pesticides to resolve to sever cockroach infestations. This will require the entire office to vacate the premises for a total of five hours but that is worth not having cockroaches in the kitchen.

