For structural repairs like piers and wall stabilization, yes. We work with licensed Professional Engineers who evaluate the failure and specify the fix in a stamped report. Many Cincinnati building departments require the engineer's stamp to permit the work, and it protects you at resale.
More detail
A licensed Professional Engineer (PE) is the difference between a contractor selling you hardware and a documented, defensible structural repair. For any structural scope (push or helical piers, bowing-wall stabilization, wall anchors, structural crack repair on a load-bearing wall), we coordinate a PE who inspects the failure, determines the cause, and specifies the system, capacity, and spacing in a stamped report or letter. That report confirms the design meets the Ohio Residential Code and the IRC provisions for foundations, and many local building departments will not issue a permit for foundation work without it. The engineer's independence also protects you as the homeowner: the PE has no incentive to oversell piers you do not need, so the stamped scope is a check on the proposal. There is real resale value too. Foundation history is a material defect that Ohio law requires sellers to disclose on the Residential Property Disclosure Form, and a stamped engineer's report plus a documented, transferable warranty turns that disclosure from a deal-killer into evidence that the problem was diagnosed and properly fixed. We are upfront that minor, clearly cosmetic work (a single non-structural crack injection, leveling a settled sidewalk) does not require an engineer. But for anything holding up your house, the engineer's stamp is the standard we hold to, and it is one of the main things that separates a quality local contractor from a low-bid operator.