I own a janitorial business and we include ALL of the services mentioned above. We are all inclusive so to speak. One member stated its difficult to make contracts for janitorial but I haven't come across that yet. We offer a daily, weekly, biwkly, monthly & one time cleaning service. It all depends on what the customer needs. We customize a checklist to meet our customers needs as well. We also do other unrelated task such as maintaining the cooler water trays, emptying the refrigerators & cabinets, ice machines, hard floor care & so on. Also, we service office spaces, new & renovated properties, manufacturing facilities, financial institutions & medical clinics to include the production areas within the facilities. I honestly don't know if there's much of a difference aside from these small factors. I advertise all services so anyone looking for a provider can see we offer those services. Some of the older timers may know more but this is how we operate.