Construction Defect Expert Witness

Construction
Defect Expert Witness

Defect cases hinge on whether the work deviated from plans, specifications, and accepted construction practice, and what it costs to fix it. I conduct site inspections, analyze construction documents, and produce expert reports that give your litigation team a clear, defensible position on liability and damages.

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20+
Years Field Experience
$3B+
in Projects Managed
100+
Projects Delivered
4
State GC Licenses
Services

Construction Defect Analysis Services

The full scope of services an attorney needs to build and present a construction defect case:

1

Site Inspections

Physical examination and documentation of alleged defects, with photographic and written records that provide a clear factual foundation for your case.

2

Defect Identification & Root Cause Analysis

Systematic analysis of what failed, where it deviated from contract documents and applicable standards of care, tracing each failure back to its origin in design, workmanship, materials, or sequencing.

3

Cost-to-Repair Estimates

Detailed, defensible repair cost quantification based on actual scope and current market pricing, not round numbers pulled from a database.

4

Expert Reports

Written reports suitable for disclosure in state or federal court, with clear methodology, findings, and opinions that survive Daubert or Frye scrutiny.

5

Deposition & Trial Testimony

Preparation support and direct testimony. I review opposing expert reports and identify methodology weaknesses. Clear, consistent testimony for lay fact-finders.

How I Work

My Approach to Defect Analysis

A four-step process from initial review to courtroom-ready testimony.

1

Document Review

Before anything else, I review contracts, plans, specifications, RFIs, submittals, inspection records, and prior reports. This determines the scope of inspection and identifies critical issues early.

2

Site Inspection & Analysis

Systematic analysis of each alleged defect against applicable standards of care, contract requirements, and building code, documented photographically and in writing.

3

Expert Report

Written report documenting methodology, findings, and opinions in a format suitable for disclosure in state or federal court. Structured to withstand cross-examination.

4

Deposition & Trial

I work with your team ahead of deposition, including review of opposing expert reports. Straightforward, consistent under cross-examination.

Case Types

Common Construction Defect Cases

Plaintiff

  • HOA vs. developer: common area envelope and structural defects
  • Owner vs. general contractor: workmanship defects and specification deviations
  • Water intrusion and waterproofing failures
  • Structural deficiencies: foundation, framing, load path
  • Code violations and standard of care disputes
  • Material failure and product installation errors

Defense

  • Contractor defending workmanship against inflated defect claims
  • Design professional defending specifications against field attribution
  • Manufacturer defending materials against improper installation claims
  • Standard of care defense: was the work within acceptable industry practice
  • Multi-party defect attribution: separating subcontractor responsibilities
  • Cost-of-repair challenges: opposing inflated remediation estimates
Background

Credentials & Qualifications

20+ years managing complex commercial construction projects, the field experience that separates a credible expert from a paper reviewer.

Garrett Johnson, Construction Expert Witness
  • B.S. Civil Engineering: Brigham Young University
  • PSP: Planning and Scheduling Professional (AACE International)
  • CCP: Certified Cost Professional (AACE International)
  • CCM: Certified Construction Manager (CMAA)
  • FMPC: FenestrationMaster Professional Certification
  • Licensed General Contractor: B100 & E100AK  ·  ID  ·  NV  ·  UT
FAQ

Frequently Asked Questions

A construction defect is a deficiency in the design, workmanship, or materials of a construction project that causes damage or creates an unreasonable risk of damage. Courts distinguish between patent defects (those visible or discoverable by reasonable inspection) and latent defects, which are hidden and may not manifest for years. To rise to the level of a legally actionable defect, there generally needs to be a deviation from the contract documents, the applicable building code, or the accepted standard of care for the work in question.

A design defect exists in the plans, specifications, or engineering drawings. Something was designed incorrectly or inadequately, regardless of how well it was built. A workmanship defect occurs when the work deviates from what the design required. The design was correct, but the installation wasn't. The distinction matters for both liability allocation and damages analysis. In practice, many defect cases involve elements of both.

The primary measure is typically the cost to repair or remediate the defective work: what it actually costs to bring the construction into conformance with the contract and applicable standards. This requires a detailed scope of remediation, priced at current market rates. In some cases, courts apply a diminution-in-value measure instead of or in addition to repair costs, particularly when the defect cannot be fully remediated.

Expert witness fees vary based on the complexity of the project, the volume of documents, the number of alleged defects, and the scope of work required. For straightforward residential defect matters, a basic review and report may involve 20–40 hours of work. Complex commercial cases involving site inspections, document review, multiple expert reports, and deposition and trial testimony may involve significantly more. I'm happy to give you a realistic estimate of scope after an initial conversation about the case.

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