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.









































