About Us

We offer a full range of environmentally sound solutions for all stages of the pavement lifecycle: pavement preservation, renewal, rehabilitation and construction. 

No other firm offers the spectrum of services and provides delivery with the level of quality that we do

Started out in 1989 providing cold milling services to the Southern California market, and we have grown over the years into a premier general contractor. We are proud to provide owners, engineers and project managers with sustainable, safe and cost-effective solutions on every stage of our projects. From FOG and Slurry Seals to full reconstruction, Alonso has become your one stop provider with a full range of services. 100% employee owned; every employee owner is committed to delivering the best care and quality for you and your project.