Commercial
Our engineering team accomplishes all aspects of your project with care and attention – from site feasibility analysis and land surveying through final design, permitting, and contract administration. Working for clients in many industries has refined our engineering processes to complete projects accurately, on-time, and with the field experience required to prepare accurate, buildable plans.
Commercial owners, architects, and contractors know they can count on Frontenac to address engineering issues with speed and attention to detail, whether in the initial construction phase or years down the road when additions or enhancements are under consideration. Our thoughtful approach assures design reliability and construction accountability for our clients.
In addition to our engineering abilities or strengths, we perform complete survey and design documentation to expedite the permit and review process. Our experience working with regulatory and permitting agencies guides our projects to completion – on time and on budget.

Site Visit for Steel-Framed Rooftop Terrace
FEG replaces a previously fire-damaged rooftop terrace structure in St. Louis, MO. There are some damaged pilasters that extend above the roof deck to provide bearing support and FEG provides repair details, repair specification, and new anchorage design for the existing/re-built pilasters. These damaged pilasters can be seen in the video above.
Apartment Projects
Sunnen Station Apartments
Wilson Avenue Apartments
Spirit of St. Louis Airport

Structural Engineering, Civil Engineering, & Land Surveying
2 new hangars and ramp addition

Ramp expansions

Aviation Fuel Farm

Frontenac Engineering provided civil engineering and construction phase services for several different projects at the Spirit of St. Louis Airport in Chesterfield, Missouri. These projects included hangar, ramp expansion, and fuel farm projects ranging in cost from $250,000 to $4,000,000.