What’s your Vision?



Michael Walmsley Photography - Runberg Architecture Group

Our Mechanical and Electrical Engineering firm is responsive to client’s needs. We are set apart from other firms by intensity of principal involvement, attention to detail and coordination.

We specialize in fire, plumbing, HVAC and electrical systems for buildings. We’ve thrived in Seattle for over 40 years and designed buildings throughout the west.

“Sider + Byers are our "go-to" engineering firm. They consistently provide exceptional services which simplify the technical requirements of our projects and enhance the architecture. They are timely, proficient, and exhibit great humor.”

– Ed Weinstein, FAIA -