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California contractor license
Main Street Underground LLC
Main Street Underground LLC of San Jose holds California license 1053002 (A General Engineering). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Apr 30, 2027.
Active
Main Street Underground LLC, San Jose
- License
- 1053002
- Class
- A General Engineering
- Expires
- Apr 30, 2027
- Bond
- $25,000
- Workers' comp
- Insured to May 23, 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
- $25,000Liberty Mutual Insurance Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from May 23, 2019, to May 23, 2027
Who is on this license?
- Officer
- Ronald D. BianchiniSince Apr 30, 2019
- Responsible managing manager
- Kyle M. PrestonSince Apr 30, 2019
What work does this license cover?
Issued Apr 30, 2019.
Which other San Jose businesses hold A General Engineering?
- Daco Construction General Engineering ContractorLicensed since 2015
- Garza Engineering IncLicensed since 2017
- Pacific States Dirtmarket Joint VentureLicensed since 2019
- 7 M General Engineering IncLicensed since 2020
- Golden State Underground IncLicensed since 2020
General Contractors in San JoseCalifornia general contractors
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- 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.
- 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
- Don't sign or pay a deposit until the CSLB shows the license active again.
- 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.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 31, 2026)
- Contractors State License Board (CSLB)