This site is a technology platform, not a licensing authority. Always verify licence status directly with the relevant government registry. Learn more
DoC

Register · California · Contractors State License Board (CSLB)

MECHANICAL TECHNOLOGY SYSTEMS INC

California contractor license 828672, issued by the Contractors State License Board (CSLB)

Classifications
C-20 - Warm-Air Heating, Ventilating and Air-Conditioning Contractor
CSLB statusCLEAR / Pending IFS
Recorded locationORANGE, Orange County
Issue date12/17/2003 (as published)
Expiration date12/31/2027 (as published)
Workers’ compensationWorkers' Compensation Insurance (CSLB record)
Insurer on file: TRANSPORTATION INSURANCE COMPANY
Contractor bondRLI INSURANCE COMPANY, $25,000 (CSLB record)
SourceContractors State License Board (CSLB) License Master, retrieved 4 Oct 2026.

The License Master file includes licences that are currently renewed or expired but renewable. Licences that are cancelled, revoked, or expired and not renewable are not in it, so a licence missing from this register proves nothing about it.

This page shows the record as of the date we retrieved it, so the licence may have been renewed or changed since. Confirm current standing with the board: search licence number 828672 on CSLB Instant License Check.

The board publishes contact details for its licensees; we do not republish addresses or phone numbers. You will find them on CSLB Instant License Check.

Nothing on this page is a rating or a recommendation. Our records come from federal, state and local sources, or user-inputted data.

MECHANICAL TECHNOLOGY SYSTEMS INC — California contractor license 828672 | Department of Construction