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  • Home
  • News
  • Practices
    • Practice Areas
    • Transportation & Supply Chain
      • Practice Overview
      • Freight Transportation Planning
      • Enhanced Commodity Flow Data for Freight Planning
      • Public Sector Network Optimization
      • Commercial Supply Chain Network Design
      • Fleet Route Optimization & Management
      • Consulting Services for Federal Agencies
      • Consulting Partnerships & SDVOSB Opportunities
    • Engineering & Forensics
      • Practice Overview
      • Structural Engineering
      • Civil Engineering
      • Building Envelope Engineering
      • Mechanical (MEP) Engineering
      • Forensic Engineering & Investigations
      • Engineering Technology Solutions
      • Engineering Partnerships & SDVOSB Opportunities
    • Information Technology
    • Finance, Payments & Expense Management
  • Projects
  • About Us
    • Leadership Team
    • Industries Served
  • Careers

Forensic Engineering, Investigations & Expert Witness Services

Quetica is a forensic engineering company offering expert analysis and investigation of residential, commercial and industrial structures involving design, construction, or material/product failures that result in property damage or personal injury. Our team of licensed, experienced engineers and consultants provide a wide range of services to attorneys, insurance firms, property owners, managers, and contractors providing assistance for resolving claims and disputes arising from faulty design and construction, materials failures, water leakage, and accidents.

Forensic Engineering, Inspection, Investigation, Evaluation + Expert Witness Testimony Services

  • Moisture / Water Intrusion
  • Exterior Wall Cladding (Lap Siding, Stucco, EIFS, Masonry, Lintels)
  • Windows + Doors
  • Water-Resistive Barriers / Flashing Systems, Air Barriers + Vapor Retarders
  • Roofing Systems
  • Interior Moisture Vapor / Condensation Formation
  • Weather / Storm Damage
  • Structural
  • Pavement
  • Mechanical / HVAC, Electrical + Plumbing (MEP)
  • Stormwater / Drainage
  • Personal Injury
  • Design, Code, Standard of Care Review

Our Team

Denny Langer leads our forensic engineering services team, specializing in the investigation of fraud and related issues in design and construction, as well as insurance claim verification. With over 1,000 forensic evaluations to his credit, Denny brings extensive experience across commercial, institutional, industrial, and residential projects. His work includes site inspections, documentation reviews, expert report preparation, and expert testimony—providing critical litigation support to insurance carriers.

Denny’s expertise encompasses forensic architecture, engineering, construction defect analysis, and health and safety accident investigations.

As a forensic engineering company, our team includes mechanical, electrical, plumbing (MEP), structural and civil engineering. Together, our multidisciplinary team delivers thorough, reliable, and defensible evaluations in support of insurance and legal professionals.

Click here for Denny Langer’s Curriculum Vitae

Denny Langer, P.E.

Denny Langer, P.E.

MEP and Forensic Lead, Senior Mechanical Engineer

denny.langer@quetica.com 651.964.4646 ext.866

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City of Coon Rapids Public Works Roof Replacement

Building Envelope, Engineering, Government, Mechanical/MEP Engineering, Municipal

The Grove Mixed-Use Development

Civil Engineering, Commercial, Engineering

Minnesota Army National Guard Renovation at Camp Ripley

Engineering, Government, Structural

New High School Facility – Huerfano School District

Education, Engineering, Structural Engineering

City of Cloquet Public Library Additions + Renovations

Commercial, Engineering, Mechanical/MEP Engineering

City of Golden Valley Wesley Park Shelter Roof Replacement

Building Envelope, Engineering, Mechanical/MEP Engineering, Municipal

Minneapolis Veterans Affairs Medical Center Mental Health Unit Renovation

Engineering, Government, Mechanical/MEP Engineering, Medical

Anoka Ramsey Community College Science Modernization Project

Education, Engineering, Government, Structural Engineering

Robert Trail Residential Site Services

Civil Engineering, Engineering, Survey Services

16-Acre Commercial Development

Civil Engineering, Commercial, Engineering, Landscape Architecture, Survey Services

Business Park Feasibility Study – Chippewa County

Engineering, Government, Manufacturing & Distribution, Supply Chain & Transportation

Saint Paul Port Authority Port Optimization Project

Engineering, Municipal, Network Optimization, Solutions, Supply Chain & Transportation, supply chain optimization

South Routt Medical Center Additions + Renovations

Civil Engineering, Engineering, Medical, Structural

Municipal Engineering + Consulting

Engineering, Fleet Management, Mechanical/MEP Engineering, Municipal

City of Coon Rapids City Center Roof Replacement

Building Envelope, Engineering, Mechanical/MEP Engineering, Municipal

Haugtvedt Waterfowl Production Area Wetland Restoration

Civil Engineering, Engineering

City of Eden Prairie Community Center Roof Replacement

Building Envelope, Engineering, Mechanical/MEP Engineering, Municipal

Chilled Water (Glycol) System for Cooling Die Cast Machines

Engineering, Mechanical/MEP Engineering

Advisory Services for Commercial Vehicle Pre-Clearance/Pre-Screening Technology

Engineering, Government, Supply Chain & Transportation

Franklin Center School Renovation + Expansion

Civil Engineering, Education, Engineering, Survey Services

Westonka Public Schools Redesign + Renovations

Education, Engineering, Structural Engineering

Elbert County Public Works Road + Bridge Division Shop

Engineering, Municipal, Structural Engineering

Central Nebraska Transload Study

Engineering, Supply Chain & Transportation

City of Golden Valley Scheid Park Shelter Roof Replacement

Building Envelope, Engineering, Mechanical/MEP Engineering, Municipal

City of Eden Prairie City Center Chiller Replacement Project

Engineering, Mechanical/MEP Engineering, Municipal

Hamline Church United Methodist Remodel

Commercial, Engineering, Mechanical/MEP Engineering

Child + Adolescent Behavioral Health Facility

Civil Engineering, Engineering, Medical, Structural Engineering

Mixed-Use Storage Building

Civil Engineering, Commercial, Engineering

City of Coon Rapids East and West Water Treatment Plant Roof Replacement

Building Envelope, Engineering, Government, Mechanical/MEP Engineering, Municipal

ADA Upgrades for Tunnel between Capitol Building to State Office Building

Engineering, Government, Structural

Minnesota Opera LAB Theater Renovation + Remodel

Civil Engineering, Engineering

City of Eden Prairie – Utilities Garage Roof Replacement

Commercial, Engineering, Government, Mechanical/MEP Engineering, Municipal

The Donegan Seven-Story Residential

Civil Engineering, Commercial, Engineering

Mission Office Center – Renovation + Expansion

Commercial, Engineering

Estes Park Health Expansion + Renovation

Civil Engineering, Engineering, Government, Medical, Structural Engineering

WinnMed – Medical Center Expansion + Renovation

Engineering, Medical, Structural Engineering

City of Brooklyn Center West Fire Station Roof Replacement

Building Envelope, Engineering, Government, Mechanical/MEP Engineering, Municipal

Tomah VA Medical Center Expansion + Renovation

Civil Engineering, Engineering, Government, Medical

City of Duluth Public Library Remodel

Engineering, Mechanical/MEP Engineering

New Ulm National Guard Readiness Center

Engineering, Government, Structural Engineering
Contact us to find out how we can help your organization Contact Us

About Quetica

Quetica is a Service-Disabled, Veteran-Owned Small Business (SDVOSB) led by industry experts with deep expertise in Transportation and Supply Chain Management, Engineering, Information Technology, Global Trade and Payments. Quetica helps government agencies, commercial clients and financial institutions globally to efficiently and effectively accelerate business growth, achieve sustainable cost reduction and accomplish better service levels through delivery of hands-on practical expertise and world class solutions.

Service-Disabled Veteran-Owned Certified by the U.S. Small Business Administration

Locations

3800 American Boulevard West, Suite 1500
Bloomington, MN 55431

Colorado Office
Denver, CO 80202

Florida Office
Cocoa Beach, FL 32931

Minnesota Offices
Bloomington, MN 55431
St. Louis Park, MN 55416

South Dakota Office
Sioux Falls, SD 57103

Texas Office
Dallas, TX 75206

Wisconsin Offices
Hudson, WI 54016
Madison, WI 53593

 

Contact Info

(651) 964-4646 Main
(720) 239-1560 Colorado
(214) 306-8391 Texas
(321) 235-6727 Florida

Quetica

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