Skip to content
State files updated Oct 29, 2026
Look up a contractor
MenuClose

Home / License lookup / California / Interstate Grading And Paving Inc

California contractor license

Interstate Grading And Paving Inc

Interstate Grading And Paving Inc of South San Francisco holds California license 366020 (A General Engineering, HAZ Hazardous Substance Removal Certification). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Nov 30, 2026.

Licensed 47 years, longer than 98% of 116 active South San Francisco general contractors.

Active

  • Workers' comp ends Nov 1, 2026 (3 days)
  • License ends Nov 30, 2026 (32 days)

Interstate Grading And Paving Inc, South San Francisco

License
366020
Class
A General Engineering; HAZ Hazardous Substance Removal Certification
Expires
Nov 30, 2026
Bond
$25,000
Workers' comp
Insured to Nov 1, 2026

CSLB file dated Oct 29, 2026

From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

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

Bond
$25,000Siriuspoint America Insurance Company, from Jun 5, 2025, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredInsurance Company Of The West, from Nov 1, 2025, to Nov 1, 2026

Who is on this license?

Officer
Bruce M. CaronSince Jan 23, 2019
Responsible managing officer
Nancy P. ZammutoSince Nov 28, 1978
CEO and president
Craig J. CaronSince Jan 28, 2019

What work does this license cover?

Issued Nov 28, 1978.

Which other South San Francisco businesses hold A General Engineering?

General Contractors in South San FranciscoCalifornia general contractors

What should you check before hiring?

What to ask before you hire

  1. Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
  2. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  3. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  4. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  5. 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.
  6. 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 29, 2026)
  2. Contractors State License Board (CSLB)