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State files updated Oct 31, 2026
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California contractor license

Northstar Contracting Group Inc

Northstar Contracting Group Inc of Nederland holds California license 518740 (A General Engineering, ASB Asbestos Certification, B General Building, C21 Building Moving/Demolition, C22 Asbestos Abatement, C35 Lathing and Plastering, D63, HAZ Hazardous Substance Removal Certification). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Oct 31, 2027.

Licensed 39 years, longer than 93% of 62,932 active California general contractors.

Active

Northstar Contracting Group Inc, Nederland

License
518740
Class
A General Engineering; ASB Asbestos Certification; B General Building; C21 Building Moving/Demolition; C22 Asbestos Abatement; C35 Lathing and Plastering; D63; HAZ Hazardous Substance Removal Certification
Expires
Oct 31, 2027
Bond
$25,000
Workers' comp
Insured to Jul 1, 2027

CSLB file dated Oct 31, 2026

From the CSLB file dated Oct 31, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Oct 31, 2026. Confirm with the board: CSLB license check

What bond, insurance and workers' comp are on file?

Bond
$25,000Everest Reinsurance Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredLM Insurance Corporation, from Jul 1, 2026, to Jul 1, 2027

Who is on this license?

Officer
Gregory G. di CarloSince Jan 25, 2013
Officer
Jeffrey P. AdixSince Jun 17, 2019
Responsible managing officer
John M. LeonardSince Jan 9, 1995
CEO and president
Bryan A. DiloretoSince Jun 17, 2019
CEO and president
Trenton G. ManasseSince Nov 17, 2021

What work does this license cover?

Issued Oct 5, 1987.

Where are other licensed California contractors listed?

California general contractors

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
  5. Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.

If the license is lapsed

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 31, 2026)
  2. Contractors State License Board (CSLB)