Fermin Renteria
No review text provided.
Business ProfileConcrete & Masonry Contractors in Concord, California
The Conco Companies
The Conco Companies
The Conco Companies provides commercial concrete services from its Concord base and has served the Bay Area since 1959. It began under the name Gonsalves & Santucci, Inc.
Last Updated October 3, 2026.
Service Area
Northern California, Southern California, Washington and Oregon/SW Washington.
Local Business Taking Calls
The Conco Companies is one of 10 concrete & masonry contractors ProsGrade lists in Concord, California.
Taking Calls
Taking calls through ProsGrade
Listing details
8 services listed, including Pre-construction design/build, Digital construction and Rebar/concrete reinforcement. Open weekdays, closed on weekends. Rated 4.9 from 17 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How The Conco Companies compares with the other 9 concrete & masonry contractors on ProsGrade in Concord, using public Google ratings and review counts.
- Ranks in the top half of the 10 Concord concrete & masonry contractors on ProsGrade by Google rating and review volume.
- Rated 4.9 on Google, at or above the 4.8 average of other Concord concrete & masonry contractors on ProsGrade.
- One of 5 Concord concrete & masonry contractors on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
8 services- Pre-construction design/buildprofessional design services
- Digital constructionpre-construction planning, construction QAQC and project closeout
- Rebar/concrete reinforcementrebar fabrication and installation; post-tension cables
- Concrete formworkin-house formwork resources
- Cellular concrete (ConFoam™)lightweight engineered fill, also called foam concrete
- Concrete pumpingpumps and belts
- Concrete finishingplace-and-finish crews
- Shotcretepneumatically placed concrete
Reviews
What customers say
Several reviewers praise the service. One specifically mentions great service in both the office and the field, while other comments praise the people and the work.
Customer Reviews
Deberah Williams
Great
anabelle herrera gomez
Great service in the office and in the field.
Kelsea Jones
Great people, great service! Highly recommend Conco!
Lee Flores
Amazing job and service!
Write a Review
Share your experience with this business. Reviews are moderated before they appear publicly.
Frequently Asked Questions
What types of commercial projects does The Conco Companies support?
Its project scope includes highway and public works, as well as educational, industrial, healthcare and parking structures.