Business Details
50+ Years
experience
Trusted Concrete Construction Services in Concord, CA
Conco Companies have been delivering premium concrete services across the Western United States since 1959. As an industry leader, we combine decades of experience with cutting-edge technology to provide comprehensive solutions for commercial, industrial, and public works projects. Our vertically integrated operations include pre-construction design, digital construction, rebar reinforcement, concrete formwork, and advanced pumping services. We operate two state-of-the-art rebar fabrication facilities and maintain a fleet of modern pumping equipment to ensure efficiency and reliability. Our commitment to safety is unparalleled, with rigorous protocols and training programs that prioritize employee well-being above all else.Through strategic investments in innovation, such as robotic total stations and 4D planning tools, we consistently deliver projects on time and within budget. Our team of certified professionals brings specialized expertise to every phase of construction, from initial design to final finishing. With regional offices in California, Oregon, and Washington, we serve major metropolitan areas while maintaining a local market understanding. Our mission remains focused on being the premier supplier of concrete services, combining technical excellence with unwavering dedication to customer satisfaction.
Services
Pre-Construction Design
Concrete Pumping
Rebar Reinforcement
Concrete Formwork
Cellular Concrete
Shotcrete Application
Digital Construction
Concrete Finishing
Structural Demolition
Construction Trucking
Details
- Year established: 1959
Highlights and features
- We have over 60 years of experience in commercial concrete construction
- Our proprietary ConFoam technology offers innovative lightweight fill solutions
- We maintain the largest pumping fleet in the Western U.S.
- Our safety-first culture has earned industry recognition for 15+ consecutive years
- We operate two state-of-the-art rebar fabrication facilities in California and Washington
Services
Concrete Pumping
Our concrete pumping division operates one of the largest fleets in the U.S., featuring state-of-the-art equipment including Schwing 58X long boom pumps and Telebelts. Our ACPA-certified operators deliver precise placement solutions for challenging access projects. With strategically located equipment in California, Oregon, and Washington, we ensure rapid response times and cost-effective service for commercial and industrial applications.
Rebar Reinforcement
We offer complete rebar solutions from two advanced fabrication facilities in Benicia, CA and Rochester, WA. Our services include custom rebar bending, post-tension cable manufacturing, and stud rail fabrication. With solar-powered plants and modern equipment, we produce high-precision reinforcement systems for structural concrete applications across the Western U.S.
Cellular Concrete
Our proprietary ConFoam solution provides lightweight, pumpable fill material for void backfill and sub-base applications. This cement-based foam concrete offers self-compacting properties that eliminate mechanical compaction requirements. Ideal for pipeline abandonment, trench filling, and structural insulation applications where traditional materials create excessive load.
Shotcrete Application
We specialize in shotcrete solutions for retaining walls, slope stabilization, and architectural applications. Our American Shotcrete Association-certified nozzlemen apply structural concrete pneumatically, reducing formwork requirements by up to 70%. We also lead the industry in sculpted shotcrete applications combining structural integrity with aesthetic design.
Digital Construction
Our digital construction team utilizes Building Information Modeling (BIM) and 4D planning tools for project visualization and coordination. We create detailed Revit models and Synchro schedules that identify potential conflicts before construction begins, reducing rework and improving project sequencing for complex commercial developments.
People
Steve Gonsalves
Owner & President
With over 30 years in the concrete industry, Steve Gonsalves leads Conco Companies' safety-first culture. He has expanded operations across four Western states while maintaining family-owned values. His strategic vision drives technological innovation and sustainable practices.
Questions
What regions do you serve?
We provide concrete services throughout the Western United States, including California, Oregon, Washington, and Nevada.
Do you offer emergency concrete services?
While we don't provide 24/7 emergency services, we maintain rapid response capabilities for urgent concrete repair and placement needs during regular business hours.
What is ConFoam?
ConFoam is our proprietary cellular concrete product - a lightweight, pumpable fill material ideal for void backfill, trench applications, and structural insulation projects.
Are your operators certified?
Yes, our concrete pump operators hold ACPA certifications, and our shotcrete nozzlemen are certified by the American Shotcrete Association.
Do you handle large-scale commercial projects?
We specialize in large commercial and industrial concrete projects, with capacity to manage contracts exceeding $100 million in value.
What safety certifications do you hold?
We maintain OSHA 30 certifications for all field personnel and have received multiple AGC Safety Awards for our comprehensive safety programs.
Videos
Reviews (2)
Chris K.
Apr 04, 2021
Report
Hit and run March 19 2021.... piss poor company . They would not take responsibility because I didn't get lic plate. I did get the video... u guys run piss poor company
Jordan Aaron C.
Mar 31, 2016
Report
5/5 Stars
CONCRETE PALACE
How would you review a contracting company? For this review I will rate it on the meeting areas, the customer-employee relation, the building, the parking and the office vibe. This building has multiple conference rooms in various sizes, from 8 people rooms to 30 people rooms. The meeting or conference rooms are well-lit, projector ready and well furnished. They have done a great job with them. The customer-employee relations are excellent. The front desk worker is always very positive and helpful. The building is a massive concrete palace. the gray walls wrap
CONCRETE PALACE
How would you review a contracting company? For this review I will rate it on the meeting areas, the customer-employee relation, the building, the parking and the office vibe. This building has multiple conference rooms in various sizes, from 8 people rooms to 30 people rooms. The meeting or conference rooms are well-lit, projector ready and well furnished. They have done a great job with them. The customer-employee relations are excellent. The front desk worker is always very positive and helpful. The building is a massive concrete palace. the gray walls wrap
