Defective workmanship expert witness for construction defect disputes773-619-1226 | paul@expertwitness.co

Construction and Carpentry Experience

Paul Gaston, Defective Workmanship Expert

Paul Gaston is a defective workmanship expert whose opinions rest on more than 30 years of hands-on construction. He has been a Carpenters Local 10 journeyman since 1989, holds an active City of Chicago general contractor license, and since 2007 has directed more than 25 skilled trades as a General Foreman for the Chicago Department of Aviation at O'Hare.

Built on Carpentry

Most defect allegations involve work Paul has done himself. He joined Carpenters Local 10 in 1989 and spent his early career framing, setting doors, installing millwork and finishing interiors. From 1994 to 2004 he was a lead carpenter and foreman for several firms, leading carpentry, framing, millwork and finish work on commercial, retail and residential projects, including work for Shriners Hospital, Marshall Field's and Jewel-Osco, and overseeing accessibility-compliant remodels.

That trade foundation means he can look at a joint, a fastening pattern or an installation sequence and recognize how it was done and how it should have been done.

Supervising and Correcting Work

Defects are found and fixed by supervisors, and Paul has spent two decades in that role. He was Project Manager and Superintendent for Oakley Construction Contractors in 2004 and 2005, then Foreman and Construction Supervisor for the City of Chicago Department of General Services from 2005 to 2007. Since 2007 he has been a General Foreman at O'Hare International Airport, overseeing renovation, maintenance and construction across terminals and concourses, and directing trades responsible for carpentry, flooring, plumbing, electrical and finish work.

In that role he inspects work before it is accepted and directs correction when it falls short. The same judgment applies when he evaluates a defect claim.

Credentials

CredentialDetails
General Contractor LicenseCity of Chicago, active
Journeyman CarpenterCarpenters Local 10, since 1989
OSHA 30-Hour OutreachConstruction, completed 2025
OSHA 10-Hour OutreachGeneral Industry, completed 2025
Disability Awareness and Assistance ProgramChicago Department of Aviation, 2024

Paul does not hold an engineering or architectural license and does not offer opinions that require one.

Defect Matters

Construction defect matters on Paul's testimony list include Scott v. Hartz Construction in the Circuit Court of Will County, Illinois, where he provided a report, deposition and trial testimony for the plaintiff; Englehaupt v. A.B. Edward Enterprises, an AAA arbitration in which he testified at the hearing for the defendant; and Talley v. Thunder Basin Homes in Gillette, Wyoming, where he provided a report and deposition for the plaintiff. They are listed to show the range of his work, not to suggest any result. His CV contains the full list.

How He Works

Paul treats each defect allegation as a question to be answered, not a conclusion to be supported. He reviews the documents, inspects the work and reports what he finds, including conditions that do not help the party that retained him. That is the standard counsel should expect from any expert, and it is the one he holds himself to. See defective workmanship claims for how he approaches a claim.

Questions

Common Questions

What trade background does Paul have?

He is a union journeyman carpenter with Carpenters Local 10 since 1989, with years of experience in framing, millwork, doors and finish carpentry.

Has Paul supervised other trades?

Yes. As a General Foreman at O'Hare since 2007 he directs more than 25 skilled trades, including carpentry, flooring, plumbing, electrical and finish work.

Which side does Paul usually work for?

He has been retained by plaintiffs and defendants in defect matters, including owners, contractors and their counsel.

Does Paul report findings that hurt the retaining party?

Yes. He reports what the documents and field conditions show, which gives counsel a realistic view of the matter.

Need to know whether the work is actually defective?

Send the party names for a conflict check. Paul will look at what was required, what was built and what the evidence shows.