A T S Construction, B General Building Contractor in Ontario, CA
A T S Construction operating as a sole owner holds California contractor license #807837, which is currently expired (lapsed May 31, 2026) and not valid to contract until it is renewed. First issued in 2002, the license has been on the CSLB roster for 24 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Ontario, in San Bernardino County, California.
- License Number
- 807837
- Issued
- May 8, 2002
- Status
- CLEAR
- Expires
- May 31, 2026
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67438881
- Effective
- May 31, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 9, 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 A T S Construction licensed in California?
A T S Construction previously held California Contractors State License Board license number 807837, but the license expired on May 31, 2026 and is not currently valid. It was first issued on May 8, 2002.
What does A T S Construction specialize in?
A T S Construction is licensed for one CSLB classification: B General Building Contractor.
Where is A T S Construction headquartered?
A T S Construction is headquartered at 2568 Cold Springs Pl, Ontario, CA 91761, in San Bernardino County, California.
Does A T S Construction have an active surety bond on file with CSLB?
Yes. A T S Construction has an active California contractor surety bond filed with Western Surety Company.
Does A T S Construction carry workers' compensation coverage?
A T S Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify A T S Construction's contractor license?
You can verify A T S Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=807837.
- License issuedMay 8, 2002
- WC coverage startsApr 9, 2024
- Bond activeMay 31, 2025
- License expiredMay 31, 2026
- Montgomery Hardware CO#285746Rancho Cucamonga·B General Building Contractor
- Theilacker Rudolf Carl Contractor#279711Ontario·A General Engineering Contractor
- Gott W D Construction CO#279688Upland·A General Engineering Contractor
- L T Design & Construction#292255Landers·B General Building Contractor
- Gomes H John JR#294227Cedar Glen·B General Building Contractor
- Albers Mfg CO INC#269367Chino·B General Building Contractor
- Fuel Pros INC#269354Chino·A General Engineering Contractor
- Grecco's Construction#266216Apple Valley·B General Building Contractor
Working a California job with A T S Construction, 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 A T S Construction? Claim or correct this profile