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The Conco Companies

Commercial Concrete Contractors Since 1959

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      • Assistant Project Manager – Kent, Washington
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New Pumps to Meet the Challenges of our Drilling Customers

May 20, 2014 The Conco Companies  Concrete Pumping

Conco Pumping Schwing M36:31 Los Angeles

The Conco Companies just took delivery of two new Schwing M36/31 concrete pumps that are specifically designed to skillfully meet the challenges of our drilling customers.  The new M36/31 pumps are currently based out of our Southern California operations. Up until now, one of the problems that drillers have faced is that most concrete booms are … [Read more...]

Tagged: 2014, CARB compliant, Concrete Pump, Concrete Pumping, Drilling Industry, long tremmie pipes, Los Angeles, Schwing M36/31

Record Setting Event Accomplished Without Injury

February 28, 2014 The Conco Companies  Concrete Finishing, Concrete Formwork, Concrete Pumping, Shotcrete

While Conco is justifiably proud of breaking the World record for the largest continuous mat pour, we are even more proud of doing it safely.  Our commitment to safety began with the vision from Conco’s Southern California General Manager, Rick Parker.  Five months prior to the pour, he invited John Messing, Conco’s Safety Director, to participate … [Read more...]

Tagged: 2014, Commercial, Concrete Pumping, Guinness World Record, Largest Continuous Mat Pour, Los Angeles, Wilshire Grand Center

Conco’s Thermal Control Plan of the Wilshire Grand Mat Foundation Pour Proves Successful

February 28, 2014 The Conco Companies  Concrete Finishing, Concrete Formwork, Concrete Pumping, Shotcrete

Among the many unique features of the Wilshire Grand mat foundation pour was the thermal control plan.  Occasionally we need to make provisions for the heat that is generated in mat foundations.  In mass concrete structures there are two thermal properties that must be considered: the maximum temperature and the temperature difference between the … [Read more...]

Tagged: 2014, Commercial, Concrete Pumping, Guinness World Record, Largest Continuous Mat Pour, Wilshire Grand Center

Conco’s Equipment Met the Tough Challenges of the Wilshire Grand Pour With Flying Colors

February 28, 2014 The Conco Companies  Concrete Finishing, Concrete Formwork, Concrete Pumping, Shotcrete

Wilshire Foundation Concrete Equipment

To successfully complete the world’s largest continuous mat pour, one of the biggest challenges Conco faced was to find ways to unload 120 – 150 truckloads of concrete per hour. With the need to unload so many trucks in such a short period of time, Conco’s plan called for thirteen points of placement in the mat foundation.  However, only two sides … [Read more...]

Tagged: 2014, Commercial, Concrete Pumping, Guinness World Record, Largest Continuous Mat Pour, Los Angeles, Wilshire Grand Center

Breaking the Guinness World Record for the Largest Continuous Mat Pour

February 28, 2014 The Conco Companies  Concrete Finishing, Concrete Formwork, Concrete Pumping, Shotcrete

Wilshire Grand largest continuous mat pour

Starting at 4:47 p.m. on Saturday, February 15, 2014, Conco broke the Guinness World Record for the largest continuous mat pour in 18 ½ hours (1 ½ hours under the projected time).  To verify the event, there was an official Guinness World Records adjudicator on-site.  The mat pour was for the new Wilshire Grand Center that is being constructed in … [Read more...]

Tagged: 2014, Commercial, Concrete Pumping, Guinness World Record, Largest Continuous Mat Pour, Los Angeles, Wilshire Grand Center

Conco Makes a $50,000 Donation to Transportation California

February 7, 2014 The Conco Companies  Announcements

Conco - Tansportation California Donation

Conco is pleased to announce that we have taken a step toward helping to improve California’s crucial transportation infrastructure.  Our $50,000 donation will go toward the significant work being done by Transportation California.  This non-partisan, non-profit public interest organization’s mission statement contains “the belief that an excellent … [Read more...]

Tagged: 2014, Sacramento, Transportation, Transportation California

Wilshire Grand Center Project

January 8, 2014 The Conco Companies  Concrete Finishing, Concrete Formwork, Concrete Pumping, Concrete Reinforcement

Conco has been given the opportunity to participate in another landmark project by providing concrete services for the new Wilshire Grand Center being built in downtown L.A.  The new tower will become the tallest building in the United States west of the Mississippi.  This is one of several of our large-scale projects in Los Angeles. Others include … [Read more...]

Tagged: 2014, Commercial, Concrete, Los Angeles, Wilshire Grand Center

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Latest Posts

  • Apartment Tower Topped Out by Conco in Downtown Vancouver

    Apartment Tower Topped Out by Conco in Downtown Vancouver

    February 25, 2021
  • Conco Tops Off 10-Story Office Tower in Seattle’s Business District

    Conco Tops Off 10-Story Office Tower in Seattle’s Business District

    February 14, 2021
  • Conco Expands Downtown Vancouver with a Mixed-Use Apartment Complex

    Conco Expands Downtown Vancouver with a Mixed-Use Apartment Complex

    February 8, 2021
  • In the Heart of Portland, Conco Provides Concrete Services for New Residential Living Space

    In the Heart of Portland, Conco Provides Concrete Services for New Residential Living Space

    February 8, 2021
  • ConFoam™ – Save Your Project Time and Money with Exact Estimates

    ConFoam™ – Save Your Project Time and Money with Exact Estimates

    February 1, 2021
  • Conco Partners with the Concrete Preservation Institute to Help Military Veterans Begin Careers in the Concrete Industry

    Conco Partners with the Concrete Preservation Institute to Help Military Veterans Begin Careers in the Concrete Industry

    January 6, 2021

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Free Whitepaper: Hiring the Best Commercial SubContractor

N. California

5141 Commercial Circle
Concord, CA 94520

925-685-6799 Phone
925-685-6851 Fax

S. California

13052 Dahlia Street
Fontana, CA 92337

909-350-0474 Phone
909-350-0475 Fax

Washington

18644 72nd Avenue S
Kent, WA 98032

425-251-1684 Phone
425-251-6548 Fax

Portland

7025 N Leadbetter Road
Portland, OR 97203

(971) 808-5954 Phone

Copyright © 2021 · Conco. All Rights Reserved.

Conco’s mission is to be the best supplier of concrete services in the Western United States and to bring expertise and unsurpassed quality to each project. We continue to upgrade and expand facilities to better serve the growing market for public works projects, commercial, parking structures, educational, and other construction development. We welcome the opportunity to offer our vast experience to your next project as one of the country’s leading commercial concrete contractors.

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  • Home
  • About
    • Leadership
    • Careers
      • Assistant Project Manager – Kent, Washington
      • BIM Technician – Kent, Washington
      • Business Development Manager
      • Concrete Boom Pump Operator, Reno, NV
      • Construction Project Engineer – Portland, OR
      • Formwork Design Engineer – Kent Washington
      • Project Manager Southern CA
      • Reinforcing Steel Detailer – Seattle
      • Safety Director
      • Senior Project Engineer – Fontana, CA
      • Senior System Administrator \ Asp.net Developer
      • Superintendents for Northern or Southern CA locations
    • Internships
    • Safety
    • Site Map
      • Privacy Policy
  • Services
    • Concrete Reinforcement
      • Rebar Fabrication
        • Rebar Manufacturers
        • Rebar Companies
      • Post Tension Cable
      • Steel Rebar
        • Steel Rebar Suppliers
      • Reinforced Concrete Walls
      • Reinforcing Steel
      • Stud Rail
    • Concrete Design/Build
      • Reinforced Concrete Design
      • Concrete Building Design
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    • Concrete Formwork
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      • Union Concrete Contractors
    • Concrete Finishing
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      • Cellular Concrete Contractors
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      • Swimming Pool Demolition
      • Annular Grout and Void Space Backfill
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  • Pumps & Belts
    • iPhone App: Conco Concrete Pumping Guide
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    • Northern California Pumps
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    • Washington Pumps
    • Telebelts
      • Belting Conveyors
    • How to Order a Concrete Pump
  • Contact