Ensuring that you have a robust maintenance and servicing plan will ensure the longevity of your building, reducing running costs in the longer term and reducing risks to falls and accidents. It will also contribute to business continuity with fewer occasions where the building has to be closed for emergency repairs etc.
The presentation by 
Quadrilect asks why should you maintain your building, developing maintenance strategies and outlines the different types of maintenance.
COSS have produced a checklist for asset maintenance.
Facilities Management - Checklists for Asset Maintenance.docx