
Engineering support integrated with your team from concept through construction.
Leigh + O’Kane provides structural engineering services that support projects from early planning through construction. Whether delivering full structural design or targeted solutions, we work as part of the project team to provide clear communication, practical problem-solving, and dependable follow-through.
Leigh + O'Kane delivers thoughtful and efficient structural design solutions that support your architectural vision. We collaborate early, communicate often, and engineer systems that are safe, buildable, and cost-effective. Our goal is simple — help architects create spaces that stand strong and look great.

When something doesn’t look or perform the way it should, our team digs in. Leigh + O'Kane provides clear, practical structural investigations that identify the cause of distress and outline straightforward solutions an architect and owner can trust.

Before a project moves forward, we help you understand what is structurally possible. Leigh + O'Kane evaluates loads, materials, code requirements, and cost impacts so architects and owners can make confident, informed design decisions early in the process.

Leigh + O'Kane performs thorough structural condition surveys for existing buildings and facilities. We document what is working, what needs attention, and what improvements will keep the structure safe, serviceable, and ready for future design work.

Our independent peer reviews help architects reduce risk and improve design performance. Leigh + O'Kane evaluates structural systems for code compliance, constructibility, and clarity — giving design teams confidence before drawings hit the job site.

We help project teams understand how a structure will perform during seismic events. Leigh + O'Kane provides seismic evaluations and retrofit recommendations that align with current codes and support resilient, life-safety-focused design.

Leigh + O'Kane provides certified special inspections for critical structural components. Our friendly, responsive inspectors verify that installations match the approved design and help keep construction moving smoothly.

We support contractors and architects during construction with shoring design, temporary bracing, field fixes, and real-world problem solving. Leigh + O'Kane helps teams stay on schedule with solutions that are practical, safe, and easy to execute.

Our material testing services confirm that concrete, steel, masonry, and other structural materials meet project requirements. Leigh + O'Kane provides accurate, timely results that support quality assurance and long-term durability.

Working outside of these states? We’re prepared to travel and secure licensure wherever your project takes us.


Our team is responsive, easy to reach, and ready to help you move forward.