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Keystone Mechanical LLC: CSLB License #1028816

Source: CSLB public data · Updated November 1, 2026 · CSLB's record

Active, no issues in CSLB file

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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.

License details

License number: 1028816
Primary status: CLEAR · what this means
Business type: Limited Liability
Issued: July 10, 2017 (9 years)
Reissued: March 23, 2022
Expires: March 31, 2028
Classifications: C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
Mailing address: 1051 Linda Drive, Campbell, CA, 95008
Phone: (408) 529-0311

Workers' compensation

Type: Workers' Compensation Insurance
Insurer: Hartford Casualty Insurance Company
Policy number: 57WECAS1M6L
Effective: May 1, 2023
Expires: May 1, 2027

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Contractor's bond

Surety: The Ohio Casualty Insurance Company
Bond number: 999167837
Amount: $25,000
Effective: January 1, 2023

Bond of qualifying individual

Surety: The Ohio Casualty Insurance Company
Bond number: 999160149
Amount: $100,000
Effective: March 23, 2022

Status history

No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.

Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.