Heidi L. Mase

Senior Associate


Heidi Mase joined WJE in 2009 and has broad-based experience in architectural and structural services. Ms. Mase has participated in field investigations, structural analysis and design, computer modeling, repair document preparation, construction observation, and field testing on structure types ranging from historic wood-framed, masonry buildings to modern, precast structures. She is proficient in the use of AutoCAD, SAP2000, and Google SketchUp.

Prior to joining WJE, Ms. Mase worked in the structural engineering group at Skidmore, Owings & Merrill in Chicago, Illinois, where she was involved with structural designs and progressive collapse studies. While attending graduate school at the University of Illinois at Urbana-Champaign, Ms. Mase served as a teaching assistant for a concrete design course.


Architectural Investigation

  • Allstate Corporate Headquarters - Northbrook, IL: Condition survey of existing sealant joints
  • 119 East Laurel - Lake Forest, IL: Inspection of displaced brick due to balcony repairs


Computer-Aided Design

  • Iberdrola Renewables Hardscrabble Wind Farm - Little Falls, NY: Preparation of existing foundation drawings
  • Pebble Creek Townhomes - Glenview, IL: Preparation of exterior repair drawings
  • University of Chicago, New Hospital Pavilion - IL: Preparation of drawings for tunnel opening in existing DECAM foundation wall
  • Retail Franchise Building - Winnetka, IL: Preparation of repair drawings for retail building


Construction Observation Services

  • Holy Name Cathedral - Chicago, IL: Comprehensive investigation, design, and construction period services for a complex historic structure, including observation of roof framing repairs, concrete column pours, flashing installation, and EIFS installation
  • Louis Pasteur Elementary School - Chicago, IL: Observation of parapet rebuild and lintel installation


Repair and Rehabilitation Design

  • St. Hedwig Parish - Chicago, IL: Condition assessment, structural evaluation, and repair design for existing foundation and wood-framed floor structure


Structural Analysis/Computer Modeling

  • St. Elizabeths West Campus - Washington, D.C.: Analysis of existing trusses using SAP2000
  • Holy Name Cathedral - Chicago, IL: Analysis of exterior masonry walls and design of steel bracing and roof framing
  • Milwaukee Federal Building - WI: Design of netting protection system to address facade distress


Roofing and Waterproofing

  • Butler Area School District - Butler, PA: Condition assessment, remedial designs, and construction period observation for several roof replacement projects
  • Hotel Bollero - Palatine, IL: Condition assessment, design, and construction observation services for roof replacement work


Water Penetration Testing

  • Lincoln Middle School - Schiller Park, IL: Field testing in conjunction with water leakage investigations
Professional Affiliations

Building Enclosure Council - Chicago Chapter
International Institute of Building Enclosure Consultants
Structural Engineers Association of Illinois


Architect in IL


University of Illinois at Urbana-Champaign
Bachelor of Science, Architectural Studies, 2006
Master of Architecture, Structures Option, 2008