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Preserving the past and paving the future.

Our work spans from the preservation of historic buildings to the design of sustainable, future-focused structures. We provide consulting and design services in virtually all areas of construction.


With licenses in 38 states, our field of reach includes your community. We pride ourselves on providing cost-effective solutions based on thorough customer collaboration, addressing the unique complexities of each project and delivering the highest standard of quality in structural design.

Willett Engineering is a Gray company.

Willett Engineering is a structural analysis and design company offering best-in-class development for industrial projects, educational facilities, offices, retail buildings, steel erection, and more. In 2018, Willett joined the Gray family of brands to complement its structural engineering services. As a Gray company, Willett continues to combine excellence in engineering with collaborative solutions, using the latest in technology and design.