ValuMasters, Inc. Real Estate Appraisers Professionally designated and Illinois State Certified and/or Licensed Real Estate Appraisers with offices in St. Charles, Illinois, specializing in Chicago's West and Northwest Suburbs - primarily in the counties of Kane, DuPage, McHenry, Kendall, DeKalb and Cook. Click here to see a map of our appraisal area. ValuMasters, Inc. provides quality ...