Facilities management businesses coordinate the services needed to operate and maintain buildings, workplaces and other sites. They may manage a single service or bring together several under one contract, working with building owners, occupiers and landlords to keep premises functional, safe and suitable for their users. Services can include planned and reactive maintenance of heating, ventilation, electrical systems and building fabric, as well as cleaning, waste management, security, reception, catering and grounds maintenance. Providers may arrange inspections and repairs, manage contractors, oversee access and help monitor health and safety requirements. Some also support energy use, space planning, moves and day-to-day building operations. The work may cover offices, retail premises, public buildings, industrial sites and residential developments.