Contractor License Proof

Tier One Mechanical Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1071811
Status
Active
Classifications
C-16 · Fire ProtectionC-20 · Warm-Air Heating, Ventilating and Air-ConditioningC-36 · Plumbing
Contractor bond
$25,000
Workers' comp
Covered
License term on file
December 10, 2020 – December 31, 2026

Business

  • (310) 637 1500 (CSLB public record)
  • 18414 S SANTA FE AVENUE, Rancho Dominguez, CA 90221Los Angeles County

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Frequently asked questions

Is Tier One Mechanical Inc licensed in California?

Yes. Tier One Mechanical Inc holds an active California state contractor license (CSLB #1071811), verified against the CSLB public record on June 17, 2026.

What is Tier One Mechanical Inc's CSLB license number?

Tier One Mechanical Inc's California contractor license number is 1071811. 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 Tier One Mechanical Inc licensed for?

Tier One Mechanical Inc is classified under Fire Protection (C-16), Warm-Air Heating, Ventilating and Air-Conditioning (C-20), and Plumbing (C-36) by the CSLB.

How do I verify Tier One Mechanical Inc's license myself?

Look up license #1071811 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 #1071811 on CSLB

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See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.