Hammer Engineering LLC, A General Engineering Contractor in Windsor, CA
Hammer Engineering LLC operating as a limited liability holds California contractor license #1110818, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 2023, the license has been on the CSLB roster for 3 years. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Windsor, in Sonoma County, California.
- License Number
- 1110818
- Issued
- Oct 2, 2023
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Limited Liability
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100874388
- Effective
- Jul 24, 2024
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jul 11, 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 Hammer Engineering LLC licensed in California?
Hammer Engineering LLC previously held California Contractors State License Board license number 1110818, but the license expired on July 31, 2026 and is not currently valid. It was first issued on October 2, 2023.
What does Hammer Engineering LLC specialize in?
Hammer Engineering LLC is licensed for one CSLB classification: A General Engineering Contractor.
Where is Hammer Engineering LLC headquartered?
Hammer Engineering LLC is headquartered at P O Box 271, Windsor, CA 95492, in Sonoma County, California.
Does Hammer Engineering LLC have an active surety bond on file with CSLB?
Yes. Hammer Engineering LLC has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Hammer Engineering LLC carry workers' compensation coverage?
Hammer Engineering LLC reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Hammer Engineering LLC's contractor license?
You can verify Hammer Engineering LLC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1110818.
- License issuedOct 2, 2023
- WC coverage startsJul 11, 2024
- Bond activeJul 24, 2024
- License expiredJul 31, 2026
- Western Water#188068Santa Rosa·A General Engineering Contractor
- Argonaut Constructors INC#171432Santa Rosa·A General Engineering Contractor
- Petersen Les Drilling & Pump INC#261084Santa Rosa·A General Engineering Contractor
- Labrucherie G M#239445Santa Rosa·A General Engineering Contractor
- Mc Lellan W K CO#240701Petaluma·A General Engineering Contractor
- Soiland CO INC#212731Cotati·A General Engineering Contractor
- Able Maintenance INC#312844Santa Rosa·A General Engineering Contractor
- Aaron Paving & Sns Asphalt Services#308128Santa Rosa·A General Engineering Contractor
Working a California job with Hammer Engineering LLC, 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 Hammer Engineering LLC? Claim or correct this profile