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Licensed General Engineering Contractors in San Dimas, California

Updated November 1, 2026 from CSLB's public license file · A General Engineering Contractor

  • 21licensed general engineering contractors
  • 21active (Clear)
  • 0%with a suspension
  • 14.3%workers' comp exempt
  • 16.2 yrsmedian time licensed
  • 85.7%corp / LLC / partnership (14.3% sole owner)
  • 0new in the last 12 months
  • —change tracking began November 1, 2026

There are 21 general engineering contractors based in San Dimas in CSLB's current file. 21 (100%) have a Clear status as of November 1, 2026.

14.3% report a workers' comp exemption, 21.1 points lower than the statewide figure for general engineering contractors (35.4%), so many of these businesses say they have no employees. The share with a suspension, 0%, is 3 points lower than the Los Angeles County rate for the same license (3%).

Experience varies: 61.9% have been licensed 10+ years and 0 are new this year (median 16.2 years, vs 18.5 statewide).

These firms hold CSLB's A (General Engineering Contractor) license for engineered fixed works. See the A General Engineering Contractor guide for what the license covers.

How to check a general engineering contractor's license in San Dimas

  1. Open the general engineering contractor's profile from the table below (or search San Dimas listings by name). Check that A appears among its classifications and that the primary status reads Clear. What A covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed general engineering contractor is required by law. See the $1,000 rule.

All 21 general engineering contractors in San Dimas

San Dimas general engineering 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 general engineering contractors in San Dimas
Business nameLicense #StatusYearsWorkers' compBond
Sea West Enterprises INC 486074 Clear 40 Insured On file
Grigolla & Sons Construction CO INC 514132 Clear 39 Insured On file
Fidelity Construction Plumbing INC 585042 Clear 36 Exempt On file
Vacom Technologies 641833 Clear 34 Insured On file
Diversfied Construction & Engineering Group INC 768516 Clear 27 Insured On file
Grigolla Construction 840594 Clear 22 Exempt On file
Staib Backhoe & Excavation INC 875366 Clear 20 Insured On file
Touchstone Contractors INC 899558 Clear 19 Insured On file
Transdev Rail INC 920178 Clear 18 Insured On file
Rogers Martin A INC 928843 Clear 17 Insured On file
Sharp's Backhoe Service INC 951383 Clear 16 Insured On file
Robert Konstruction 985284 Clear 13 Insured On file
J & M Contracting Corp 998358 Clear 12 Insured On file
Penta INC 1044658 Clear 8 Insured On file
Swe Sewer Solutions Construction & Engineering 1049213 Clear 7 Insured On file
Bachmann John 1059093 Clear 7 Exempt On file
Maggio Drilling 1059985 Clear 7 Insured On file
Siterep Concrete 1094220 Clear 4 Insured On file
Heavy Iron Contracting LLC 1104415 Clear 3 Insured On file
Boaw Construction INC 1127513 Clear 2 Insured On file
Socal Paving Company 1144548 Clear 1 Insured 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 general engineering contractors are in San Dimas?

CSLB's current public file lists 21 general engineering contractors with a San Dimas mailing address. 21 have a Clear status, and 95.2% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a general engineering contractor need in California?

CSLB issues the A General Engineering Contractor classification for this work. In Los Angeles County, 100% of San Dimas's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

How do I check a general engineering contractor's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among San Dimas general engineering contractors, 14.3% are exempt (no employees), 85.7% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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