John's Backflow Tech & Service, C-61/D-64 Non-specialized Contractor in Vacaville, CA
John's Backflow Tech & Service operating as a sole owner holds an active California contractor license (CSLB #1004518), valid through Jun 30, 2027. First issued in 2015, the license has been on the CSLB roster for 11 years. It carries a single CSLB classification: C-61/D-64 — Non-specialized 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 Vacaville, in Solano County, California.
- License Number
- 1004518
- Issued
- Jun 17, 2015
- Status
- CLEAR
- Expires
- Jun 30, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67529489
- Effective
- Jun 18, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jun 3, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is John's Backflow Tech & Service licensed in California?
Yes. John's Backflow Tech & Service holds California Contractors State License Board license number 1004518, which is active and in good standing. The license was first issued on June 17, 2015. It is valid through June 30, 2027.
What does John's Backflow Tech & Service specialize in?
John's Backflow Tech & Service is licensed for one CSLB classification: C-61/D-64 Non-specialized Contractor.
Where is John's Backflow Tech & Service headquartered?
John's Backflow Tech & Service is headquartered at Po Box 6353, Vacaville, CA 95696, in Solano County, California.
Does John's Backflow Tech & Service have an active surety bond on file with CSLB?
Yes. John's Backflow Tech & Service has an active California contractor surety bond filed with Western Surety Company.
Does John's Backflow Tech & Service carry workers' compensation coverage?
John's Backflow Tech & Service reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify John's Backflow Tech & Service's contractor license?
You can verify John's Backflow Tech & Service's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1004518.
- License issuedJun 17, 2015
- WC coverage startsJun 3, 2025
- Bond activeJun 18, 2025
- License expiresJun 30, 2027
Working a California job with John's Backflow Tech & Service, 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 John's Backflow Tech & Service? Claim or correct this profile