If you are looking for a building cleaning service for a business, it is important to consider pricing, so have several companies estimate the amount of work. Find out what services are included in the price. The cleaning company should also have insurance for its workers so that you don't become responsible if a cleaner sustains an injury while on the job.
Don't sign a year-long contract with a new cleaning company; agree to a trial period instead. Find out what kind of chemicals the company uses; environmentally friendly products are better for health of the people who live or work in the building. Find out what types of payments the cleaning company accepts, what to do if you need to cancel the service and if the company offers warranty for their services. Ask the company if it performs drug testing and background checks for its employees.
Look into the cleaning company's experience. The companies that have been in the business longer usually have an efficient cleaning system worked out and know how to handle any problem that might come up. Before choosing a cleaning service, ask the company for references from its clients. Contact the references to find out about any issues experienced with the cleaning service before making a decision about hiring the company.