Byun Chang Up
Verified against CSLB on · View on CSLB
License details
- License number
- 1006421
- Classifications
- License term on file
- August 14, 2015 – August 31, 2027
Business
- (714) 728 8115 (CSLB public record)
- 1238 LENAHAN ST, Fullerton, CA 92833Orange County
Are you Byun Chang Up? Claim this listing to manage it.
Claim this listingRequest a free quote
Tell us about your project and we'll connect you with licensed, verified California contractors.
Other General Building contractors in Fullerton
Superb Construction Inc
B · Fullerton, CA
Verified June 17, 2026 · Bonded
Vector General Contractors Inc
B · Fullerton, CA
Verified June 17, 2026 · Bonded
K2 Painting
B · Fullerton, CA
Verified June 17, 2026 · Bonded
Proactive Energy Solutions
B · Fullerton, CA
Verified June 17, 2026 · Bonded
T H H Construction
B · Fullerton, CA
Verified June 17, 2026 · Bonded
C C Framing
B · Fullerton, CA
Verified June 17, 2026 · Bonded
What to check next
Frequently asked questions
Is Byun Chang Up licensed in California?
Yes. Byun Chang Up holds an active California state contractor license (CSLB #1006421), verified against the CSLB public record on June 17, 2026.
What is Byun Chang Up's CSLB license number?
Byun Chang Up's California contractor license number is 1006421. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.
What kind of work is Byun Chang Up licensed for?
Byun Chang Up is classified under General Building (B) by the CSLB.
How do I verify Byun Chang Up's license myself?
Look up license #1006421 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.
Verify it yourself: How to verify a California contractor license · Look up #1006421 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.