San Diego Backflow Testing, C-4 Boiler, Hot Water Heating and Steam Fitting Contractor in San Diego, CA
San Diego Backflow Testing operating as a corporation holds an active California contractor license (CSLB #1054091), valid through Mar 31, 2028. First issued in 2019, the license has been on the CSLB roster for 7 years. It carries 5 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor, C-12 Earthwork and Paving Contractor, C-34 Pipeline Contractor, C-36 Plumbing Contractor, and C-42 Sanitation System Contractor. Records show an active surety bond on file with North River Insurance Company (the) and active workers' compensation coverage from Technology Insurance Company INC. The business is based in San Diego, in San Diego County, California.
- License Number
- 1054091
- Issued
- May 29, 2019
- Status
- CLEAR
- Expires
- Mar 31, 2028
- Entity
- Corporation
- Surety
- North River Insurance Company (the)
- Bond Number
- 04CF615448
- Effective
- Feb 19, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Technology Insurance Company INC
- Policy Number
- TWC4699923
- Effective
- Oct 24, 2025
- Expires
- Oct 24, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is San Diego Backflow Testing licensed in California?
Yes. San Diego Backflow Testing holds California Contractors State License Board license number 1054091, which is active and in good standing. The license was first issued on May 29, 2019. It is valid through March 31, 2028.
What does San Diego Backflow Testing specialize in?
San Diego Backflow Testing is licensed for 5 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor, C-12 Earthwork and Paving Contractor, C-34 Pipeline Contractor, C-36 Plumbing Contractor, and C-42 Sanitation System Contractor.
Where is San Diego Backflow Testing headquartered?
San Diego Backflow Testing is headquartered at 6844 Ballinger Ave, San Diego, CA 92119, in San Diego County, California.
Does San Diego Backflow Testing have an active surety bond on file with CSLB?
Yes. San Diego Backflow Testing has an active California contractor surety bond filed with North River Insurance Company (the).
Does San Diego Backflow Testing carry workers' compensation coverage?
Yes. San Diego Backflow Testing carries active workers' compensation coverage through Technology Insurance Company INC.
How do I verify San Diego Backflow Testing's contractor license?
You can verify San Diego Backflow Testing's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1054091.
- License issuedMay 29, 2019
- Bond activeFeb 19, 2023
- WC coverage startsOct 24, 2025
- WC expiresOct 24, 2026
- License expiresMar 31, 2028
- A O Reed & CO LLC#7731San Diego·A General Engineering Contractor
- Advance Plumbing Company#272557El Cajon·C-4 Boiler, Hot Water Heating and Steam Fitting Contractor
- Merritt B H#291323Carlsbad·B General Building Contractor
- Jackson & Blanc#188961San Diego·B General Building Contractor
- Astro Mechanical Contractors INC#267392El Cajon·A General Engineering Contractor
- Draves Pipeline Incorporated#376472Bonsall·A General Engineering Contractor
- Cass Plumbing & Heating#140162San Diego·C-8 Concrete Contractor
- Clairemont Plumbing Service#173157San Diego·C-36 Plumbing Contractor
Working a California job with San Diego Backflow Testing, 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 San Diego Backflow Testing? Claim or correct this profile