Business Details
50+ Years
experience
Your Trusted Concrete Contractor for Commercial Projects
The Conco Companies have been delivering premium concrete services throughout the Western U.S. since 1959. As an industry leader, we combine decades of experience with cutting-edge technology to provide comprehensive solutions from pre-construction design to project completion. Our team of highly qualified engineers, estimators, and field professionals collaborates closely with clients to ensure cost-effective, efficient, and sustainable outcomes. We operate state-of-the-art rebar fabrication facilities and maintain one of the largest concrete pumping fleets in the U.S., enabling us to handle projects of all sizes and complexities. Our commitment to safety is unwavering, with rigorous protocols in place to protect our employees and clients. We utilize advanced tools like Building Information Modeling (BIM), robotic total stations, and 4D planning to enhance precision and reduce rework.With offices in California, Oregon, and Washington, we serve commercial, public works, and industrial sectors across the Western United States. Our reputation for quality and reliability has been built through partnerships on architecturally significant projects and a dedication to exceeding client expectations. As a family-owned business, we prioritize integrity, innovation, and community involvement, supporting initiatives like the Cal State Chico Concrete Industry Management Program. Our mission remains to be the best supplier of concrete services by consistently delivering expertise, experience, and excellence.
Services
Pre-Construction Design
Concrete Pumping
Shotcrete Application
Rebar Fabrication
Cellular Concrete Backfill
Details
- Year established: 1959
Highlights and features
- We offer 65+ years of experience in concrete construction across the Western U.S.
- Our integrated design/build approach reduces costs and delays through early collaboration.
- We utilize advanced technologies like BIM, robotic total stations, and 4D planning.
- Our in-house rebar fabrication and pumping fleets ensure quality control and efficiency.
- We maintain an industry-leading safety program with zero compromise on worker welfare.
Services
Pre-Construction Design/Build
Our design/build service collaborates with structural engineers to create efficient, cost-effective concrete systems. Using BIM and 4D planning, we identify potential issues before construction begins, saving time and reducing change orders. This approach ensures seamless integration with other design professionals for complex building projects.
Concrete Pumping
We operate one of the largest concrete pumping fleets in the U.S., offering specialized solutions for challenging access and time-sensitive projects. Our equipment and expertise ensure precise placement in difficult locations while maintaining schedule efficiency and cost control.
Shotcrete Application
Our pneumatically placed shotcrete minimizes forming requirements and reduces labor costs. We specialize in both structural and sculptured shotcrete walls, combining technical precision with aesthetic quality for applications ranging from retaining structures to architectural features.
Rebar Fabrication
With two state-of-the-art facilities, we provide project-specific rebar fabrication and installation. Our advanced shear lines, benders, and post-tension cable manufacturing equipment ensure accuracy and productivity, supported by a skilled workforce trained in modern construction techniques.
Cellular Concrete Backfill
Our proprietary ConFoam is a lightweight, pumpable fill material ideal for void backfill, pipe abandonment, and trench stabilization. Customizable density and self-compacting properties eliminate mechanical compaction needs while reducing loads on existing structures and surrounding soils.
People
Steve Gonsalves
Owner & President
With over 45 years in the industry, Steve has led The Conco Companies since 1986. He actively participates in strategic decisions and maintains memberships in major industry associations while supporting community initiatives like the Community Youth Center in Concord, CA.
Questions
What regions does Conco serve?
We provide concrete services across Northern California, Southern California, Oregon, and Washington, with strategically located facilities to support regional projects efficiently.
What technology does Conco use for precision?
We utilize Building Information Modeling (BIM), robotic total stations, 4D planning, and laser scanning to enhance accuracy, reduce rework, and improve project visualization for clients.
What safety measures does Conco prioritize?
Safety is our top priority. We implement rigorous protocols, provide ongoing training, and maintain equipment to ensure the highest standards of workplace safety for employees and clients.
Can Conco handle complex concrete projects?
Yes. Our experience with architecturally significant projects, combined with in-house resources and advanced technology, enables us to tackle complex challenges from design through completion.
What sets Conco apart from competitors?
Our single-source approach integrates design, fabrication, and execution under one team, reducing costs and communication layers while maintaining quality control across all project phases.
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