About
A small, focused structural practice in Southern California.
HJH Engineering is a full-service structural engineering firm. We design new buildings and remodel existing ones, working closely with clients from the early stages of design through construction.
01 / The firm
We strive to work closely with clients during the early stages of the design process and throughout the construction phases in order to provide a high quality of service.
As a result we create a unique balance of the architectural vision in unison with structural design. Our clients include architects, developers, and general contractors.
Licensed in the state of California, we provide our services mainly in Southern California — with an emphasis on Los Angeles and the surrounding metros.
We are small on purpose. The engineer you talk to on the first call is the engineer who stamps your drawings and answers the phone during construction. That continuity is something larger firms struggle to deliver.
02 / The founder
Jack Hadjian, M.S., P.E.
Jack graduated from the University of Southern California with a Master's degree in Structural Engineering and has since immersed himself in the field of structural design services.
He has experience in the design of new structures and the remodel of existing structures — the two halves of a Southern California practice. That dual focus shapes how HJH Engineering approaches every project: with an eye both for what is new and for what is already there.
Jack leads every engagement personally. Clients hear from him at the outset, throughout design, during plan check, and on the job site. No hand-offs between partners, no rotating junior staff.
03 / Approach
Early, measured, present.
A few principles run through every project.
Early engagement. The cheapest time to solve a structural problem is before it is drawn. We price ourselves into schematic design because that is where we earn our keep — not during construction, when the solution space has narrowed.
Architectural partnership. We view the architect as a collaborator, not a client to be managed. Good structure supports architectural intent; bad structure fights it. Our job is the former.
Measured specificity. We do not over-design. Southern California has a set of structural problems with known, efficient solutions — and we use them. Over-designed structures cost the owner money and, often, cost the architect a detail.
Present in the field. Construction administration is not an add-on. The drawings never match the building perfectly, and someone has to make the small calls in real time. That someone is us — the engineer who drew the set.
Licensure
Licensed Professional Engineer, California
Education
M.S., Structural Engineering
University of Southern California
Affiliations
Member, SEAOSC