CASI (Colorado Asphalt Services) is a full-service asphalt and concrete company. For more than 30 years, we have provided outstanding installation, paving, and maintenance services to the Denver metro and Front Range area. Located in Commerce City, CO, CASI operates a high-capacity hot mix asphalt plant with double-drum technology and the capacity to service the Front Range. CASI also recycles its own asphalt and accepts asphalt for recycling. CASI crews perform exceptional quality work in both paving services and concrete (flatwork). CASI produces Class 6 Road Base available for sale, and is the front range licensee for and producer of EZ Street premium cold mix asphalt. In addition, CASI produces standard cold mix asphalt. CASI is recognized as the premier asphalt and concrete contractor for our uncompromising quality product and services. Our tradition of dependability, integrity, and professionalism is unsurpassed, and we strive to earn the trust and respect of our employees, customers, vendors, and community every day. OUR MISSION CASI is committed to providing the highest quality asphalt and concrete services with honesty and integrity.