M&A Mechanical Service LLC

Livermore · Alameda County · CA

VERIFIED

Bestopedia verdict

81 / 100 Bestopedia Trust Score

California’s contractor board lists M&A Mechanical Service LLC in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
0.9 / 20
Contractor bond
20 / 20
Workers' comp
20 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#1141566 verify on CSLB ↗
Classifications
C-20, C-43
Years licensed
0.9 years since 08/05/2025
Contractor bond
$25,000 MERCHANTS BONDING COMPANY (MUTUAL)
Workers’ comp
Current OAK RIVER INSURANCE COMPANY
Business type
Limited Liability
Qualifying principal
Serbio Tulio Melgar
Address of record
3987 First St Ste A, Livermore, CA 94551

Frequently Asked Questions

Is M&A Mechanical Service LLC a licensed HVAC contractor in California?

Yes. M&A Mechanical Service LLC holds California CSLB contractor license #1141566 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.

What work is M&A Mechanical Service LLC licensed to perform?

License #1141566 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C43.

Is M&A Mechanical Service LLC bonded?

Yes. M&A Mechanical Service LLC carries contractor's bond #101583354 for $25,000 through MERCHANTS BONDING COMPANY (MUTUAL).

Does M&A Mechanical Service LLC carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with OAK RIVER INSURANCE COMPANY, with a policy expiration of 10/05/2026.

How long has M&A Mechanical Service LLC held its contractor license?

License #1141566 was originally issued on 08/05/2025, approximately 1 years ago (as of July 2026).

Where is M&A Mechanical Service LLC located?

M&A Mechanical Service LLC is based in Livermore, Alameda County, CA 94551.