Raths, Raths & Johnson's Chicago Office is located in the heart of the downtown business district

RRJ has been serving clients for over 50 years in Chicago providing engineering and architectural consulting expertise in the evaluation, investigation, testing, and repair design of commercial buildings, residential high-rise towers, hospitals, university buildings, parking garages, bridges, and transit infrastructure.

Ongoing Projects

Columbia College Student Center
Exterior Wall Consultant


Chicago Mercantile Exchange Plaza Renovation
Waterproofing Consulting


TAO Chicago | Adaptive Reuse
Construction Consulting