Because Experience Matters.
Forensic construction consulting, investigation and expert testimony.
de Haan & Associates is a full-service forensic construction consulting firm providing investigation, research, and litigation services for the construction industry. We are retained by attorneys, insurance carriers, building owners, homeowner associations, and contractors in California, Arizona, and Montana.
510.815.4421· info@dehaanassoc.com3
States served
California, Arizona, and Montana
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Core services
From field investigation to testimony
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Investigative specialties
Concrete to podium slabs
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Forums
Settlement conference to trial
Services
Investigation, research and litigation services.
Eleven disciplines, one standard: accurate, organized information from the field to the hearing room.
From field to testimony
Every finding, documented for the record.
Building inspection and field documentation are among the most important aspects of construction defect conflict resolution. Our work follows a building from the first site visit to the last day of trial.
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Field investigation
Building inspection and field documentation are among the most important parts of resolving a construction defect dispute. Our field personnel identify and document defects promptly.
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Documentation and samples
State-of-the-art cameras and video documentation techniques produce trial-ready exhibits. Field samples are taken and stored at our office in case they are needed at trial.
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Testing and research
Window and door product and installation water testing. Where materials show manufacturing defects, we are aligned with several laboratories that test and analyze product failure.
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Reports, scopes, and costs
Comprehensive field reports, photo documentation, complex defect reports, and conceptual repair scopes and cost estimates.
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Resolution and testimony
Expert meetings, settlement conferences, mediations, arbitrations, depositions, and trial, with field testing data prepared for trial.
Sectors
Complex buildings, investigated with care.
Experience includes services for universities, community colleges, school districts, casinos, condominium associations, vacation resorts, single-family homes, commercial buildings, and restaurants.
Our philosophy
“The firm’s philosophy is simple: bring together a group of experts, much as a building brings together its trades, to reach a balanced, educated opinion for fair resolution.”
Pillar I
Industry Experience
Our associates are active in the building trades, familiar with current building materials, and well versed in the construction documentation process.
Pillar II
Integrity
Accurate, organized information. Our goals in any dispute are clarity and accuracy, so advocates can work toward a resolution backed by solid, well-presented research, analysis, and information.
Principal and founder
Gregg de Haan, General Contractor.
Gregg is the founder and principal of de Haan & Associates Construction Consulting. His primary role is to lead field investigations, gather field data, attend expert meetings, mediations and arbitrations, prepare field testing data for trial, and testify at trial as an expert witness retained by owners and builders.
Qualified to testify in Sacramento, San Francisco, and Alameda County Superior Courts.
Education and memberships
- BA in Political Science and Pre-Law, Dominican University of San Rafael, 1998
- Contractors State License Board (CSLB) Industry Expert Program
- Western Construction Consultants Association (WESTCON)
- ASTM International
- National Roofing Contractors Association (NRCA)
- The Bar Association of San Francisco
Credentials
California, Arizona, and Montana.
Insights
Notes from the field.
Questions
Frequently asked.
What does a forensic construction consultant do?
A forensic construction consultant investigates how a building was designed, built and is performing, documents what is found, and explains it to the people who must resolve the problem. At de Haan & Associates that means field investigation, forensic reports, photo and video documentation, project costing, testing, research and expert witness testimony.
Who retains de Haan & Associates?
We are retained by attorneys, insurance carriers, building owners, homeowner associations, and contractors in California, Arizona, and Montana.
In what proceedings does de Haan & Associates provide expert witness services?
We perform expert witness services for settlement conferences, mediations, arbitrations, depositions, and trial.
What types of buildings has the firm worked on?
Experience includes services for universities, community colleges, school districts, casinos, condominium associations, vacation resorts, single-family homes, commercial buildings, and restaurants.
Can you test windows, doors, and building products?
Yes. Our investigative specialties include windows and doors, including product and installation water testing. When building materials are found to have manufacturing defects, we are aligned with several laboratories that test and analyze product failure.
What areas do you serve?
We serve California, Arizona, and Montana. Gregg de Haan holds California Class B License #882824 and Arizona KB-1 Dual Building Contractor license ROC341972, and his Montana credential is Montana Independent Contractor IC#402737IC.
Discuss a matter
Because experience matters.
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