Quantum Builders INC, B General Building Contractor in San Diego, CA
Quantum Builders INC operating as a corporation holds California contractor license #1121040, which is currently expired (lapsed May 31, 2026) and not valid to contract until it is renewed. First issued in 2024, the license has been on the CSLB roster for 2 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and an exempt workers' compensation status (no employees on payroll). The business is based in San Diego, in San Diego County, California.
- License Number
- 1121040
- Issued
- May 17, 2024
- Status
- CLEAR
- Expires
- May 31, 2026
- Entity
- Corporation
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 101566628
- Effective
- Jun 11, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 22, 2024
- Expires
- —
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Quantum Builders INC licensed in California?
Quantum Builders INC previously held California Contractors State License Board license number 1121040, but the license expired on May 31, 2026 and is not currently valid. It was first issued on May 17, 2024.
What does Quantum Builders INC specialize in?
Quantum Builders INC is licensed for one CSLB classification: B General Building Contractor.
Where is Quantum Builders INC headquartered?
Quantum Builders INC is headquartered at 2461 Presidio Drive, San Diego, CA 92103, in San Diego County, California.
Does Quantum Builders INC have an active surety bond on file with CSLB?
Yes. Quantum Builders INC has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Quantum Builders INC carry workers' compensation coverage?
Quantum Builders INC reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Quantum Builders INC's contractor license?
You can verify Quantum Builders INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1121040.
- WC coverage startsApr 22, 2024
- License issuedMay 17, 2024
- Bond activeJun 11, 2025
- License expiredMay 31, 2026
- Bergelectric CORP#85046Carlsbad·A General Engineering Contractor
- Seneca Construction#127998San Diego·B General Building Contractor
- A O Reed & CO LLC#7731San Diego·A General Engineering Contractor
- Lang Homes#202432Leucadia·B General Building Contractor
- Lusardi Construction CO#207287San Marcos·A General Engineering Contractor
- J R S Management & Construction Incorporated#220335San Diego·B General Building Contractor
- Saturn Electric INC#219097San Diego·A General Engineering Contractor
- Wylie C E Construction Company#218738Rancho Santa Fe·A General Engineering Contractor
Working a California job with Quantum Builders INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Quantum Builders INC? Claim or correct this profile