WELCOME Property Valuation Services (PVS) is a Chicago based full service valuation and consulting firm, providing professional appraisal services, which conform to governmental guidelines and the provisions of the Uniform Standards of Professional Appraisal Practice (USPAP). Valuations performed by PVS routinely stand up to stringent third-party review. PVS appraisers' range of experience encompasses properties of all types and sizes, including residential, commercial, industrial and special purpose properties.