General Engineering Contractor
Northern California's Experts
We provide full service construction capabilities, completing projects on time and within budget as a team with the Owner and Engineer.
SWA experience includes a wide variety of projects. From dam construction to mass excavation, including roller-compacted concrete and structural concrete.
SWA is dedicated to quality and safety. These ideals are made possible by our experience, innovative ideas and hard work of our employees.
Our management and in- house technical support can provide full service in QC/QA, CPM scheduling, Professional Engineering services.
Originally founded as Eastco Construction by Dick Stimpel in 1969, Stimpel-Wiebelhaus Associates (SWA) is the product of a business continuation plan prepared under the guidance and cooperation of Dick Stimpel, Bill Wiebelhaus, and key management employees. The implemen-tation of this plan enabled SWA to continue its growth through the 21st Century and beyond. SWA is still committed to continuing its proud tradition of completing quality projects while providing livelihood, professional advancement and personal growth for its employees and their families.