7.	Regular plumbing maintenance. One way to get rid of cockroaches in the office is to find areas where they are most likely to hide or breed. These include the plumbing hidden in walls and ceilings because people cannot easily access them. Pest control services in Singapore will include inspection of the plumbing to make sure that the number of cockroaches and rodents are permanently reduced. They could also recommend plumbing repair and structure renovation if the inspection found problems that could be contributing to pest infestation.