Keys for all doors in a tenant’s premises are furnished at the commencement of the lease. Tenants are not permitted to affix additional locks or to alter existing locks on doors. They are not permitted to purchase duplicate keys from any source other than the Building Management Office. Duplicate door keys, installation of replacement or additional lock mechanisms are available. Any tenant wishing to have additional suite keys made or locks changed within their suite, please contact the Building Management Office at 847.376.2000 or complete a Work Order.