St. Germain & Aupperle Consulting Engineers, PLLC

St. Germain and Aupperle is headquartered in New York, with a strong client base in the Northeast and Mid Atlantic. Our firm maintains Professional Engineering Licenses in over a dozen States, and holds a NCEES National Licence Registration for reciprocity.

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We serve all markets of building structural design and construction engineering services with extensive experience in our firm's 50 year history serving these sectors with efficient design. Our clients trust our experience to guide their projects whether designing new construction, renovation, building stabilization and shoring, or providing specialty and architecturally exposed design.

Project Market Sectors:


  • K-12 Schools, New, Addition & Renovation 
  • College and University Buildings
  • Day Care Centers
  • Student Housing
  • Bus Facilities
  • Building Condition Surveys
  • Libraries
  • Field House & Gymnasium


  • Hospitals
  • Medical Office Buildings
  • Outpatient Surgery Centers
  • Treatment and Counseling Centers
  • Veterinary and Animal Care
  • Urgent Care Centers
  • Assisted Living & Nursing Home
  • Senior Housing


  • Library and Museum
  • Theater and Theater Rigging
  • Church and Worship
  • Shelter and Social Service Centers
  • Historic Rehabilitation
  • Historic Masonry Repair
  • Adaptive Reuse Distressed & Abandoned Structures
  • Distressed Occupied Structure Shoring and Repair


  • Hotel and Hospitality New & Renovation
  • Retail Malls, Box Stores, and Shopping Centers
  • Offices New & Renovation
  • Office Adaptive Reuse 
  • Retail Store Contract Designs
  • Tenant Fit Out Renovation
  • Winery, Brewery & Food Service
  • Pedestrian Bridges


  • Multi-Family Residential Buildings
  • Multi-Unit Student Housing
  • Adaptive Reuse Residential
  • Single Family Large Residential
  • Custom Single Family Additions
  • Timber Framed Homes Design & Review
  • ICF Homes and Foundations
  • Log Framed Homes
  • Single Family Residential Consulting

Municipal & Public Sector

  • Municipal Offices
  • Municipality Consulting
  • Emergency Assessment Services
  • Public Roadway Bridges
  • Feasibility Studies
  • Structural Building Condition Surveys 
  • Highway Garages & Salt Storage Facilities
  • Municipal Dams 
  • Pedestrian Bridges

Specialty Architectural

  • Decorative Railings
  • Theater Rigging  
  • Stage Support
  • Display & Large Signage Rigging  
  • Installation Floor Load Reviews
  • Energy Re-Roof & MEP Load Reviews
  • Solar Support and Roof Review
  • Wind Turbine and Flagpole Support 
  • Catwalk Design
  • Architecturally Exposed Structure


    Construction & Industrial

    • Design Build Partnerships
    • Owners Representative Services
    • Heavy Mechanical & Industrial Equipment Support
    • Roof Top Equipment Support
    • Crane Rail Design
    • Construction Engineering and Phasing
    • Contractor's Engineer Services
    • Shoring Design & Building Stabilization 
    • Foundations for Pre-Engineered Superstructure
    • Pre-Engineered Project Engineer of Record Review 

    Repeat Project Relationships

    A short list of our repeat project relationships. Consistently our new clients become repeat clients. You will find at S&A, responsive professional service, second to none,  designed in the best interest of public safety, and our clients.

    Proud S&A repeat project partner not yet featured? Send Us your logo we will add you to our board.