4 - Con Construction Services
Verified against CSLB on · View on CSLB
License details
- License number
- 1054257
- Status
- Active
- Classifications
- A · General EngineeringB · General BuildingC-27 · Landscaping
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- June 4, 2019 – June 30, 2027
Business
- (909) 322 4591 (CSLB public record)
- 1566 COLUMBINE WAY, Upland, CA 91786San Bernardino County
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Frequently asked questions
Is 4 - Con Construction Services licensed in California?
Yes. 4 - Con Construction Services holds an active California state contractor license (CSLB #1054257), verified against the CSLB public record on June 17, 2026.
What is 4 - Con Construction Services's CSLB license number?
4 - Con Construction Services's California contractor license number is 1054257. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1054257
What kind of work is 4 - Con Construction Services licensed for?
4 - Con Construction Services is classified under General Engineering (A) by the CSLB.
How do I verify 4 - Con Construction Services's license myself?
Look up license #1054257 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1054257. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.