For All of Your Building Service Needs! As the choice of many recognizable heath care and building management companies, Reliable Building Services sets the standard for cleaning and professionalism. With a proven track record of consistent performance and quality staffing, we are able to completely satisfy all of your building maintenance needs. Reliable Building Services provides each customer with close personal attention, and our experienced supervisors and management ensure that the job is done right. We offer quality that is consistent dependable not only for the first few months, but for the duration of the assignment.