
News
Our Bay Area Team
Our Oakland-based team has worked on many projects throughout California.
Our Oakland-based team has worked on many projects throughout California.
4EA offices in Seattle and Oakland remain closed to the public for the time being in response to the COVID-19
Formerly JRS Engineering LLC, 4EA has been at the forefront of providing quality, value-conscious building science solutions since 2005. We work with architects, owners, and contractors to deliver high-performance buildings that deliver improved durability, energy performance and value.