Extra service proposals and billing from the maintenance contractor often represents a substantial percentage of elevator and escalator operating costs, particularly for owners and managers with a large portfolio of buildings. Building managers often do not have the time or specific expertise to reject or negotiate inappropriate invoices and proposals submitted by the contractor. BOCA Group can review extra-service invoices and proposals to verify that the contractor is not trying to charge for work that is already covered under the maintenance contract, that the estimated labor and material costs are appropriate for the work proposed or completed, and that contractual hourly rates are being used to calculate labor costs where applicable. BOCA Group can interact directly with the contractor when invoices and proposals are inappropriate, saving our clients time and money.