Dias & Sons Construction, B General Building Contractor in Santa Rosa, CA
Dias & Sons Construction operating as a sole owner holds an active California contractor license (CSLB #536723), valid through Jul 31, 2026. First issued in 1988, the license has been on the CSLB roster for 38 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 Santa Rosa, in Sonoma County, California.
- License Number
- 536723
- Issued
- Jul 29, 1988
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67686841
- Effective
- Nov 24, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jun 26, 2024
- Expires
- —
This contractor warrants a closer look before contracting:
- License expires in 21 days
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Dias & Sons Construction licensed in California?
Yes. Dias & Sons Construction holds California Contractors State License Board license number 536723, which is active and in good standing. The license was first issued on July 29, 1988. It is valid through July 31, 2026.
What does Dias & Sons Construction specialize in?
Dias & Sons Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Dias & Sons Construction headquartered?
Dias & Sons Construction is headquartered at 4595 Sonoma Hwy, Santa Rosa, CA 95409, in Sonoma County, California.
Does Dias & Sons Construction have an active surety bond on file with CSLB?
Yes. Dias & Sons Construction has an active California contractor surety bond filed with Western Surety Company.
Does Dias & Sons Construction carry workers' compensation coverage?
Dias & Sons Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Dias & Sons Construction's contractor license?
You can verify Dias & Sons Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=536723.
- License issuedJul 29, 1988
- WC coverage startsJun 26, 2024
- Bond activeNov 24, 2025
- License expiresJul 31, 2026
- Midstate Construction Corporation#89455Petaluma·B General Building Contractor
- Napa Sonoma Builders#117102Sonoma·B General Building Contractor
- Service Structures#145572Santa Rosa·B General Building Contractor
- Argonaut Constructors INC#171432Santa Rosa·A General Engineering Contractor
- Botieff William Contractor#193984Sonoma·B General Building Contractor
- Manor Development CO#183762Santa Rosa·B General Building Contractor
- Railla Joseph J#201956Sebastopol·B General Building Contractor
- Codding Construction CO#203301Santa Rosa·B General Building Contractor
Working a California job with Dias & Sons 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 Dias & Sons Construction? Claim or correct this profile