California contractor licence #449012

Mountain Mechanical Service Company

Mountain Mechanical Service Company holds California contractor licence 449012 (General Building, Electrical, HVAC (Heating, Ventilating and Air-Conditioning)) in Felton, Santa Cruz County. Status: Active · expires Oct 31, 2028.

Activelicence status

2028-10expires Oct 31, 2028

$25,000contractor's bond

Insuredworkers' comp

What this means

The licence is active: CSLB lists its status as clear. That means no suspension is on file; it does not rate the quality of the work.
Contractor's bond: $25,000 with Atlantic Specialty Insurance Company. The bond is there to pay consumers and workers harmed by licence-law violations; it is not liability insurance and it does not guarantee the work.
Workers' comp: Leasing Firm, Temp Agency, etc with Ace American Insurance Company, policy through Aug 1, 2027.

Watch this licence: $9/month. We email you when CSLB's file shows a change to this licence's status, bond, workers' comp or expiry. Checked every Monday and Thursday. Cancel any time.

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Licence details

Licence number	449012
Business name (as CSLB lists it)	MOUNTAIN MECHANICAL SERVICE COMPANY
Business type	Corporation
Status	Active
Issued	Nov 10, 1983
Reissued	Oct 1, 2018
Expires	Oct 31, 2028
City / county / ZIP	Felton / Santa Cruz / 95018
Business phone	(831) 335 9193
Contractor's bond surety	Atlantic Specialty Insurance Company
Bond amount	$25,000
Bond number	800275877
Bond effective	Sep 1, 2026
Workers' comp	Leasing Firm, Temp Agency, etc
Workers' comp insurer	Ace American Insurance Company
Workers' comp effective	Aug 1, 2026
Workers' comp expires	Aug 1, 2027
CSLB record last updated	Oct 23, 2026

Classifications

B General Building: framing and building whole structures, and projects that involve two or more unrelated trades · other general building contractors in Felton
C-10 Electrical: electrical wiring, panels, fixtures and equipment
C-20 HVAC (Heating, Ventilating and Air-Conditioning): heating, ventilation and air-conditioning (HVAC) systems · other hvac (heating, ventilating and air-conditioning) contractors in Felton

Change history

Sep 1, 2026Current contractor's bond took effect (Atlantic Specialty Insurance Company)
Aug 1, 2026Current workers' comp record took effect
Oct 1, 2018Licence reissued
Nov 10, 1983Licence issued

Changes come from comparing successive copies of CSLB's public licence master file (refreshed twice a week) since October 2026, plus the dates printed on the current record.

Need a bond or workers' comp quote?

If this is your licence and you need a contractor's bond, a replacement bond or workers' comp, request quotes from licensed providers. Free, no obligation.

Check the official record (free): CSLB licence 449012 on cslb.ca.gov. Always confirm there before you hire or sign.

Rasengan Data is a private service, not CSLB. This page is built from the public CSLB licence master file as published; it may lag the live CSLB record by a few days. Not legal advice. Is this your licence and something looks wrong? CSLB's record is the source; email rasengan.win@gmail.com about this page.