Architectural solutions and technical equipment of real estate objects change, develop, and are supplemented from year to year. As a result, their maintenance becomes more complicated. Therefore, an integrated approach to the maintenance and operation of buildings, combined with cost optimization, is a pressing need for property owners today. Solving this problem requires high professionalism and extensive experience in this field. This makes it possible to ensure the operation and maintenance of buildings at a high level of quality, regardless of the number, type and location of buildings.