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California contractor license
The Trenchless Company
The Trenchless Company of Sacramento holds California license 775703 (A General Engineering, C36 Plumbing, C42 Sanitation System). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Mar 31, 2028.
Doing business as Greenberg Clark Inc.
Licensed 26 years, longer than 76% of 148 active Sacramento plumbing contractors.
Active
The Trenchless Company, Sacramento
- License
- 775703
- Class
- A General Engineering; C36 Plumbing; C42 Sanitation System
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to May 1, 2027
CSLB file dated Nov 1, 2026
From the CSLB file dated Nov 1, 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 Nov 1, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Philadelphia Indemnity Insurance Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredA I U Insurance Company, from May 1, 2026, to May 1, 2027
Who is on this license?
- Responsible managing officer
- Max M. GreenbergSince Mar 1, 2000
- Responsible managing employee
- Darrin R. BakerSince Aug 7, 2025
What work does this license cover?
Issued Mar 1, 2000.
- A General Engineering
- C36 Plumbing
- C42 Sanitation System
Which other Sacramento businesses hold A General Engineering?
- Sierra Mills CompanyLicensed since 1999
- Action Asphalt Maintenance IncLicensed since 1999
- Thunder Mountain Enterprises IncLicensed since 2000
- K R S Construction IncLicensed since 2000
- Doumit Construction IncLicensed since 2001
Plumbing Contractors in SacramentoCalifornia plumbing contractorsGeneral Contractors in SacramentoCalifornia 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, Nov 1, 2026)
- Contractors State License Board (CSLB)