Founded in 1991, D & O Contractors Inc. has established itself as a leader in the commercial excavation industry in Arizona. With over 40 years of experience, owner Dan Olson brings unparalleled expertise and knowledge to every project. Our dedicated team of professionals is highly trained and skilled, ensuring we deliver exceptional results in grading and paving. Committed to safety and quality, we strive to exceed client expectations while maintaining the highest standards in construction.