Building
Community
Since 1907
118
Years in Business
$15B
California Infrastructure
100+
Awards Won
Rock Solid Reliable
We are a fifth generation family business passionately committed to our craft, fiercely loyal to our clients, and grateful for our community. We’re honored to have helped shape California’s infrastructure over the last century and we are determined to keep building for its future.
Real Builders
We are a self-performing builder — a rarity among large commercial contractors today. We don’t just add a layer of management to your project, we figure out the most efficient building solutions and implement them with our own skilled teams.
Isaac R Montanez Elementary and Middle School Receives ENR Award
2025 West Best Projects Award of Merit, K-12 Education: Isaac R. Montanez Elementary & Middle School Brentwood Union School District’s 13th school provides 38 classrooms
FedEx Distribution Center & Warehouse Receives Best Project & Sustainability Awards from Tilt-Up Concrete Association
Overaa is proud to announce that the FedEx Distribution Center in Richmond, California received two prestigious honors from the Tilt-Up Concrete Association — the Best
New Fire Station #94 in Brentwood, CA Breaks Ground
Today marks an exciting milestone for Contra Costa Fire Protection District as we officially break ground on Fire Station 94 in Brentwood, CA. This state-of-the-art facility
