• Baker Boyer Bank Remodel

  • Sherwood Center

  • Whitman College Paul Harvey Pool

  • Walla Walla College Mountain View Apartments

  • WWCC Center for Water Studies

  • Walla Walla Vintners

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Why Opp & Seibold?

We work hard to achieve our clients' goals. Through dedication to client service, quality construction and exemplary integrity, we have built valued long-lasting relationships with our clients. As a result, the vast majority of our work originates from repeat or past clients. If you are in need of a commercial contractor, we hope that you will give us the opportunity to show you how a skilled and dedicated contractor with high ethical standards can make your project flow seamlessly from the conceptual drawings to the finished product.


Call us at 509-525-1373 for a free project consultation!