Pioneering Solutions for our Clients and the World we Live in Today
Twining’s legacy dates back more than 120 years. What started as a family business in 1898 has evolved into one of California’s largest service providers of multi-disciplinary engineering services. Highly regarded by owners, developers, contractors, consultants, and industry for providing high-quality services that are reliable, timely, and compliant, Twining has been a central part of some of California’s most regionally significant construction projects. We employ some of the industry’s most well-known construction experts who perform research as well as consult with regulatory agencies to shape the future of construction standard practices.
Twining is a full-service engineering company with unmatched technical expertise. As detailed below, our services span from QA/QC, materials testing, and inspection, to highly technical capabilities in applied engineering and integrated disciplines. With laboratories throughout California and a deep bench of engineers, technical experts, materials scientists, technicians, and inspectors, we are unequaled in our core competencies to serve the built environment:
- Geotechnical engineering
- Asphalt pavement quality assurance services
- Asphalt pavement design and materials evaluations
- Soils and materials testing and inspection
- Specialty testing
- Mobile laboratory services
- Roofing and waterproofing consultation and inspection
- Applied engineering and research
- Forensic evaluation
- Stormwater management
- Geo-instrumentation monitoring and assessment
- Third Party Product Testing
- Plan Approvals and Inspection
- Petrography
Unparalleled Experience
Twining has developed a strong reputation by providing sound engineering, testing, and inspection services on every project we undertake. We earned this reputation knowing that the true measure of our performance rests in the satisfaction of our clients. We approach each project with the understanding that we are evaluated on the safety and durability of the structures and pavements we test and inspect.
This approach has allowed us to develop long lasting relationships with our clients. These relationships have given us experience that is unmatched by our competitors.
Twining, Inc. uses state-of-the art technology to monitor and test your structures, keeping them safe and up to safety standards.
- Survey & Documentation
- Non-Destructive Evaluation (NDE)
- Invasive Sampling & Material Testing
- Petrographic & Materials Investigations
- Special Testing
