O&S is a full-service architecture and engineering consulting and design corporation. We are an MBE firm with over 90 Engineers and Architects.

We have provided architectural and engineering services to both public and private entities around the country for hospitals, residential buildings, office parks, schools, airports, industrial buildings, shopping centers, and warehouses.

Our services include building envelopes, façade restoration, façade law inspections, roofing, windows, plazas and public spaces, parking structures, waterproofing, fire protection, lighting design, paving and site civil restoration, HVAC assessments and design and energy studies and retro-commissioning.