California Construction Defect Expert Witness Services

4 yrs

Outer limit for patent defects from substantial completion: CCP §337.1

10 yrs

Outer limit for latent defects from substantial completion: CCP §337.15

50 days

Expert witness exchange before the initial trial date, on demand: CCP §2034.230

§801

Evidence Code limits on expert opinion and the basis it must rest on

For Plaintiff & Defense Counsel and Carriers

The Technical Record Behind the Case

Most construction defect cases are won or lost on facts that have to be gathered from the building and the project record: what the plans required, what was actually installed, when it was finished and what it would cost to fix. Our consulting work gives counsel those facts early, while they can still shape the strategy.

Early Case Assessment

A first read on the construction issues, the likely causes, the records that matter and what the investigation will need.

Investigation & Evidence Preservation

Site inspection, photographs, sampling and a written destructive testing protocol the other parties can review.

SB 800 Claim Review

Claimed conditions checked against the Right to Repair Act's performance standards and documented before the builder's inspection where possible.

Standard of Care & Code Review

The work measured against the plans, specifications, manufacturer's instructions and code in effect when it was built.

Repair Scope & Cost of Repair

A repair scope and line-by-line estimate tied to the defects found, with betterment and code upgrades separated out.

Opposing Report Review

A close read of the other side's expert reports for method, basis, alternative causes and cost, with questions for counsel.

The California Framework

Counsel decides how the law applies. These are the rules that shape the construction work behind a California defect claim:

Right to Repair Act (SB 800): Civil Code section 895 and following sets performance standards for new residential construction and a prelitigation process that gives the builder a chance to inspect and offer a repair before suit. The investigation has to speak to those standards.
Time limits: four years from substantial completion for patent defects under CCP §337.1 and ten years for latent defects under CCP §337.15. Whether a condition was visible on a reasonable inspection is a construction question. See patent vs. latent defects.
Expert qualification and basis: Evidence Code section 720 requires special knowledge, skill, experience, training or education. Section 801 requires the opinion to rest on matter an expert may reasonably rely on. Courts act as gatekeepers under Sargon Enterprises v. University of Southern California (2012).
Expert exchange: on demand after the trial date is set, parties exchange expert witness information under CCP §2034.210 and following, generally 50 days before the initial trial date.

For the state overview, see our California construction law guide.

Consulting First, Designation When Needed

Most of our work is as a consulting expert: investigating, analyzing and advising counsel so the case is built on a sound technical record. When a matter needs a designated testifying expert, we discuss at the outset which professional is qualified for each opinion, for example a licensed engineer where the opinion is an engineering one. Then we set up the file for that role from day one.

How notes, drafts and communications are handled depends on that decision, so it is worth making early. See what PCC recommends for consulting and testifying engagements.

Experience From the Building Side

Our principal has worked in construction forensics since 2012, producing repair cost estimates and analysis used in construction defect litigation. That work sits on more than 35 years in architecture and construction, including construction management, construction administration and owner's representation. Knowing how buildings are actually designed, bid and built is what lets a consultant tell a real defect from a normal construction tolerance and a real repair cost from an inflated one.

We also investigate specific building failures in depth. See water intrusion investigation and SB 721 and SB 326 balcony inspections.

How It Works

How an Engagement Runs

Conflict check: party and project names only. No case facts until the check clears.
Scope with counsel: the questions to answer, the role, the budget and the schedule to the expert exchange.
Investigation: documents, site inspection, testing and openings under a written protocol.
Analysis: cause, timing, standard of care and repair scope and cost, each tied to the record.
Reporting & support: findings to counsel in the form counsel needs, plus review of opposing reports and support through deposition and trial.

Frequently Asked

Construction Defect Experts: Quick Answers

What does a construction defect consulting expert do?

A consulting expert works for counsel behind the scenes. The work usually covers an early read on the construction issues, site investigation and evidence preservation, a destructive testing protocol, standard of care and code review, repair scope and cost and review of the other side's expert reports. It gives counsel the technical facts needed to value, prove or defend the claim.

What is the difference between a consulting expert and a testifying expert in California?

A consulting expert advises counsel and is not listed to give opinions at trial. A testifying expert is designated in the expert witness exchange under Code of Civil Procedure section 2034.210 and following and can be deposed. Counsel decides whether and when a consultant is designated and how work product protection applies. Setting the role early shapes how notes, drafts and communications are handled.

When is the California expert witness exchange?

After the initial trial date is set, any party may demand a simultaneous exchange of expert witness information. Under Code of Civil Procedure section 2034.230 the exchange date is 50 days before the initial trial date or 20 days after service of the demand, whichever is closer to trial, unless the court orders otherwise. The investigation that supports an opinion has to be done well before then.

What does California require of an expert opinion?

Evidence Code section 720 requires special knowledge, skill, experience, training or education on the subject. Section 801 limits expert opinion to subjects beyond common experience and requires it to rest on matter of a type an expert may reasonably rely on. California courts act as gatekeepers and can exclude opinions that are speculative or not supported by their basis, as the California Supreme Court held in Sargon Enterprises v. University of Southern California (2012). An opinion is only as strong as the investigation and records behind it.

When should a construction expert be retained on a defect claim?

Early, before repairs, demolition or the other side's inspection change the evidence. On a claim under California's Right to Repair Act (SB 800), that means before the builder's inspection and repair offer if possible, so the conditions are documented independently.

Does PCC work for plaintiffs and defendants?

Yes. PCC is retained by plaintiff and defense counsel, insurance carriers, HOA boards and property owners. Every engagement starts with a conflict check. No case facts should be sent until the check clears.

This page is general information, not legal advice. It does not create an attorney-client or expert-client relationship. PCC is a construction forensics and construction management firm, not a law firm. Confirm how any rule applies to a specific matter with counsel.

From PCC Insights

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