Interwest Construction was founded on the commitment to our people, community, and the quality of our work. Contracting since 1987, lnterwest, is a well-respected privately owned heavy civil construction company building throughout Washington State. Our success has resulted from our continued focus on customer satisfaction; in every aspect.

Our company’s goal has been to provide a safe, efficient, and professional team of individuals who are given the resources and equipment they need to complete any project large or small on time and within budget.

Our teams pride themselves on providing quality construction services while partnering with owners to minimize costs & construction duration.  We take great care to ensure successful project completion with close attention to detail.  Our commitment is to deliver the highest quality work within cost-efficient standards meeting the demanding schedules required to succeed in the construction industry.

We are an industry leader in underground utilities,  heavy highway and bridge construction, and total site development, throughout Washington State.  We also focus on developing our workforce expertise, to include environmental and hazardous waste cleanups and wastewater treatment plant construction.