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Contractor LookoutCalifornia

Licensed Concrete Contractors in Ontario, California

Updated November 1, 2026 from CSLB's public license file · C-8 Concrete Contractor

  • 32licensed concrete contractors
  • 29active (Clear)
  • 9.4%with a suspension
  • 3.1%workers' comp exempt
  • 15.8 yrsmedian time licensed
  • 62.5%corp / LLC / partnership (37.5% sole owner)
  • 6new in the last 12 months
  • —change tracking began November 1, 2026

Ontario is home to 32 concrete contractors in CSLB's license file, ranking #2 of 6 San Bernardino County cities for this trade. 90.6% are Clear.

The share with a suspension, 9.4%, is 1.2 points higher than the San Bernardino County rate for the same license (8.2%). 3.1% report a workers' comp exemption, 2.8 points higher than the statewide figure for concrete contractors (0.3%), so many of these businesses say they have no employees.

The median concrete contractor here has held a license for 15.8 years (more than the statewide median of 13.4), and 6 licenses were issued in the last 12 months.

In California this work generally calls for the C-8 Concrete Contractor license (or a B license when it is part of a larger multi-trade job). See the C-8 Concrete Contractor guide for what the license covers.

How to check a concrete contractor's license in Ontario

  1. Open the concrete contractor's profile from the table below (or search Ontario listings by name). Check that C-8 appears among its classifications and that the primary status reads Clear. What C-8 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Ask for the pocket license and a photo ID and match the name to your contract. Work of $1,000 or more needs a license (the $1,000 rule), and a down payment can't exceed $1,000 or 10% (down payment rules).

All 32 concrete contractors in Ontario

Ontario concrete contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed concrete contractors in Ontario
Business nameLicense #StatusYearsWorkers' compBond
Darracq R A Concrete 351727 Clear 48 Insured On file
Cano Architecture Concrete Repair 414320 Clear 45 Insured On file
Spec Construction CO INC 419626 Clear 44 Insured On file
Ajb Concrete & Masonry Construction 463690 Clear 42 Insured On file
Correa Construction 482342 Clear 41 Insured On file
M & R Construction Services INC 508404 Clear 39 Insured On file
K A R Construction INC 595709 Clear 36 Insured On file
K P Construction CO INC 790555 Clear 25 Insured On file
A G Construction 793245 Clear 25 Insured On file
Commercial Concrete Constructors INC 858888 Clear 21 Insured On file
Douma Concrete 879852 Clear 20 Insured On file
Mc Ghee Construction INC 884036 Clear 20 Insured On file
F C Formsetter & Concrete 912473 Clear 18 Insured On file
Garcon Construction INC 913550 Clear 18 Insured On file
Marlu Construction 960949 Clear 15 Insured On file
Jewett W H INC 975875 Clear 14 Insured On file
Tom's Concrete INC 996477 Clear 12 Insured On file
Robert Alan Construction INC 1022004 Clear 9 Insured On file
Legend Construction Services INC 1038753 Clear 8 Insured On file
Old School Masonry INC 1065241 Clear 6 Insured On file
Moe's Concrete 1090844 Clear 4 Insured On file
Apex Concrete 1135754 Clear 1 Insured On file
Pacific Edge Concrete 1135512 Clear 1 Insured On file
Mana Concrete 1147704 Clear <1 Insured On file
Nexera Concrete 1147247 Clear <1 Insured On file
Strong Base Concrete Construction 1147044 Clear <1 Insured On file
Gjk Construction Concrete Specialist 1156173 Clear <1 Insured On file
A & Son's Concrete INC 1158461 Clear <1 Insured On file
Ap Concrete 1163175 Clear <1 Insured On file
Coastline Outdoor Solutions 581970 Susp: contractor's bond 36 Insured On file
M C R Masonry CO 954433 Susp: workers' compensation 16 None On file
Ng Concrete 1084300 Susp: workers' compensation 4 Exempt On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed concrete contractors are in Ontario?

CSLB's current public file lists 32 concrete contractors with a Ontario mailing address. 29 have a Clear status, and 75% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a concrete contractor need in California?

In California this work generally calls for the C-8 Concrete Contractor license (or a B license when it is part of a larger multi-trade job). Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a concrete contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Ontario, 93.8% of concrete contractors list a policy, 3.1% claim an exemption and 3.1% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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