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M S Mechanical Service Inc

HVAC Contractor · Montebello, CA
Active license
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License1 record · Active license
Permits100 on file
Discipline / legalNo board discipline flag
BBBNot yet available
Phone(323) 558-8298
Address825 N Adobe Ave

Report verdict

Licensed & active (expires 2027-09-30) · No board discipline flag found in covered sources · 139 permits on file (Los Angeles)

88/100 HomeProFax Score — public-record factors only, not a rating of workmanship. How the score works Full report

The state board is the authority. A flag is a prompt to read the board record, not a verdict. Verify license status with the issuing board before you hire. See methodology and disclaimer & corrections.

What this report checks

✓ License
Checked
1 board record(s) · Active license
✓ Discipline & legal
Checked
No board discipline flag found in covered sources.
✓ Permits
Checked
100 permit(s) on file from covered city sources.
◐ Reviews & complaints
Where available
BBB where researched and approved HomeProFax reviews only; external ratings are linked below, not stored or scored.

Score breakdown

FactorPointsWhy
License status35/35
Active license on file with a state board
Discipline & legal flags20/20
No disciplinary flag on board record
Permit history20/20
139 permits on file
Reviews (BBB + HomeProFax)13/25
No BBB rating on file and no approved HomeProFax reviews yet (neutral). External ratings are linked below, not stored

A simple, transparent sum of public-record factors. How the score works. Not a rating of workmanship.

Source data as of: Report rebuilt from source files on 2026-10-19 · CSLB bond/workers' comp as of 2026-10-14 · most recent permit on file: 2023-03-22.

What we checked

LicenseCheckedCA Corporation #899875 · active
BondChecked$25,000 with ARCH INSURANCE COMPANY · as of 2026-10-14
Workers' compCheckedWorkers' Compensation Insurance (BERKSHIRE HATHAWAY DIRECT INSURANCE COMPANY) · as of 2026-10-14
Years licensedCheckedLicensed since 2007
Business registrationNot available in CAState business registry not loaded yet
PermitsChecked139 permits on record
DisciplineCheckednone on record
OSHANot checked yetOSHA records not checked yet
Reviews & outside linksNot checked yetNo review lookup run yet
Contractor-providedNot checked yetNothing provided by the contractor yet

Public records as of their source dates. Board status is shown as reported by the board. Not a guarantee. Ask the contractor for their verified HomeProFax report.

Licenses

Licensed since 2007 (earliest original issue date on these state license records; not a business start date)

License #TypeStatusIssuedExpiresSource
CA 899875Corporation (C20)
Workers' comp: Workers' Compensation Insurance (BERKSHIRE HATHAWAY DIRECT INSURANCE COMPANY); Contractor bond: $25000 (ARCH INSURANCE COMPANY)		clear2007-07-112027-09-30State board

Bond & workers' comp

Contractor bond$25,000 · ARCH INSURANCE COMPANY · effective 2023-09-13
Workers' compWorkers' Compensation Insurance · BERKSHIRE HATHAWAY DIRECT INSURANCE COMPANY · effective 2026-03-25 · expires 2027-03-25

Source: CSLB Public Data Portal (License Master), as of 2026-10-14. Verify current bond and insurance with CSLB and the insurer before you hire.

Building permits

DatePermitTypeAddressValue
2023-03-2223044-90000-05081HVAC - Apartment134 MARIPOSA AVE—
2023-03-1623044-90000-04565HVAC - Apartment134 MARIPOSA AVE—
2023-03-1623044-90000-04569HVAC - Apartment134 MARIPOSA AVE—
2023-03-1623044-90000-04566HVAC - Apartment134 MARIPOSA AVE—
2023-03-1623044-90000-04568HVAC - Apartment134 MARIPOSA AVE—
2023-03-1623044-90000-04567HVAC - Apartment134 MARIPOSA AVE—
2023-03-0323044-90000-03752HVAC - Apartment134 MARIPOSA AVE—
2023-03-0323044-90000-03748HVAC - Apartment134 MARIPOSA AVE—
2023-03-0323044-90000-03750HVAC - Apartment134 MARIPOSA AVE—
2023-03-0323044-90000-03749HVAC - Apartment134 MARIPOSA AVE—
2023-03-0323044-90000-03751HVAC - Apartment134 MARIPOSA AVE—
2022-12-1522044-90000-15974HVAC - 1 or 2 Family Dwelling1336 LAS CANOAS ROAD—
2022-09-2322044-90000-11735HVAC - Apartment134 MARIPOSA AVE—
2022-09-2322044-90000-11736HVAC - Apartment134 MARIPOSA AVE—
2022-09-2322044-90000-11733HVAC - Apartment134 MARIPOSA AVE—
2022-09-2322044-90000-11737HVAC - Apartment134 MARIPOSA AVE—
2022-09-2322044-90000-11734HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11394HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11395HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11401HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11398HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11396HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11393HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11397HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11400HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11402HVAC - Apartment134 MARIPOSA AVE—
2022-09-1922044-90000-11399HVAC - Apartment134 MARIPOSA AVE—
2022-08-0222044-10000-08829HVAC - Apartment4713 BEVERLY BLVD—
2022-05-1322044-10000-05339HVAC - 1 or 2 Family Dwelling3661 GILLIG AVE—
2022-04-2222044-90000-04301HVAC - Apartment4727 BEVERLY BLVD—
2022-03-1622044-90000-02761HVAC - Commercial3211 GLENDALE BLVD—
2022-03-0922044-90000-02503HVAC - Apartment4727 BEVERLY BLVD—
2022-03-0422044-10000-02290HVAC - Apartment1307 VENICE BLVD—
2022-01-2722044-90000-00888HVAC - Apartment1234 SUNSET BLVD—
2022-01-2622044-90000-00812HVAC - Apartment134 MARIPOSA AVE—
2022-01-1922044-90000-00568HVAC - Apartment1234 SUNSET BLVD—
2022-01-1822044-90000-00503HVAC - Apartment3524 ELLSWORTH ST—
2022-01-1822044-90000-00504HVAC - Apartment3526 ELLSWORTH ST—
2022-01-1822044-90000-00508HVAC - Apartment660 MALTMAN AVE—
2022-01-1822044-90000-00507HVAC - Apartment658 MALTMAN AVE—
2022-01-1822044-90000-00506HVAC - Apartment3530 ELLSWORTH ST—
2022-01-1822044-90000-00505HVAC - Apartment3528 ELLSWORTH ST—
2022-01-0722044-90000-00163HVAC - Apartment5810 SAN VICENTE BLVD—
2022-01-0722044-90000-00164HVAC - Apartment5810 SAN VICENTE BLVD—
2022-01-0722044-90000-00166HVAC - Apartment5810 SAN VICENTE BLVD—
2022-01-0722044-90000-00165HVAC - Apartment5810 SAN VICENTE BLVD—
2022-01-0722044-90000-00167HVAC - Apartment5810 SAN VICENTE BLVD—
2021-11-3021044-90000-27103HVAC - Apartment5810 SAN VICENTE BLVD—
2021-11-3021044-90000-27102HVAC - Apartment5810 SAN VICENTE BLVD—
2021-09-0121044-90000-10157HVAC - Apartment4711 BEVERLY BLVD—
2021-07-2921044-90000-07771HVAC - Apartment5810 SAN VICENTE BLVD—
2021-04-0821044-90000-03286HVAC - Apartment4727 BEVERLY BLVD—
2021-04-0821044-90000-03289HVAC - Apartment4723 BEVERLY BLVD—
2021-03-2521044-90000-02918HVAC - Apartment5810 SAN VICENTE BLVD—
2021-03-2221044-90000-02749HVAC - Apartment4727 BEVERLY BLVD—
2021-03-1021044-90000-02326HVAC - 1 or 2 Family Dwelling7812 MCCONNELL AVE—
2021-02-1621044-90000-01473HVAC - 1 or 2 Family Dwelling8114 MCCONNELL AVE—
2020-12-1120044-90000-12002HVAC - 1 or 2 Family Dwelling6923 VANSCOY AVE—
2020-07-2220044-90000-06979HVAC - Apartment1546 BUNDY DR—
2020-05-0420044-90000-04392HVAC - 1 or 2 Family Dwelling4431 CIMARRON ST—
2020-02-0620044-90000-01647HVAC - Apartment6120 ELEANOR AVE—
2020-01-2220044-90000-00778HVAC - 1 or 2 Family Dwelling12305 GREENE AVE—
2020-01-1320044-10000-00400HVAC - 1 or 2 Family Dwelling2713 BALDWIN ST—
2020-01-0620044-90000-00128HVAC - Apartment6133 ELEANOR AVE—
2019-12-0919044-10000-15108HVAC - Apartment3415 LONDON ST—
2019-11-2319044-90000-14571HVAC - Apartment1563 GORDON ST—
2019-11-1519044-90000-14208HVAC - 1 or 2 Family Dwelling1100 LE GRAY AVE—
2019-11-0519044-10000-13768HVAC - Apartment11265 PALMS BLVD—
2019-11-0519044-20000-13774HVAC - Apartment11275 PALMS BLVD—
2019-11-0419044-10000-13695HVAC - Apartment1563 GORDON ST—
2019-10-0719044-90000-12475HVAC - Apartment3416 BELLEVUE AVE—
2019-09-2519044-10000-11963HVAC - Apartment3416 BELLEVUE AVE—
2019-09-1219044-20000-11295HVAC - 1 or 2 Family Dwelling8832 ILEX AVE—
2019-08-0619044-90000-09567HVAC - 1 or 2 Family Dwelling2524 NORFOLK ST—
2019-06-0419044-10000-06710HVAC - Commercial1363 MURCHISON ST—
2019-05-2319044-90000-06248HVAC - Apartment3168 WABASH AVE—
2019-05-0819044-10000-05470HVAC - Apartment3168 WABASH AVE—
2019-03-1819044-10001-01017HVAC - Apartment1552 HI POINT ST—
2019-01-2819044-10000-01015HVAC - Apartment3808 LOS FELIZ BLVD—
2019-01-2819044-10000-01017HVAC - Apartment1552 HI POINT ST—
2018-11-2818044-90000-14514HVAC - 1 or 2 Family Dwelling729 MARCO PL—
2018-10-2618044-10000-13322HVAC - 1 or 2 Family Dwelling1520 TEMPLE ST—
2018-09-1418044-90000-11494HVAC - Apartment2040 CHARITON ST—
2018-08-2818044-90000-10763HVAC - Apartment3861 VINTON AVE—
2018-07-1618044-90000-08412HVAC - 1 or 2 Family Dwelling855 88TH ST—
2018-06-0718044-10000-06747HVAC - 1 or 2 Family Dwelling2010 CITY VIEW AVE—
2018-05-2318044-90000-06089HVAC - 1 or 2 Family Dwelling6369 NANCY ST—
2018-05-2118044-90000-05961HVAC - 1 or 2 Family Dwelling6369 NANCY ST—
2018-03-2518044-90000-03526HVAC - 1 or 2 Family Dwelling10046 LA SALLE AVE—
2018-03-2518044-90000-03525HVAC - 1 or 2 Family Dwelling9659 BARTEE AVE—
2018-03-0118041-10000-07470Electrical - 1 or 2 Family Dwelling8839 ORCHARD AVE—
2018-02-2218044-90000-02174HVAC - 1 or 2 Family Dwelling8839 ORCHARD AVE—
2018-02-1318044-10000-01769HVAC - 1 or 2 Family Dwelling2221 INEZ ST—
2018-01-1718044-10000-00631HVAC - 1 or 2 Family Dwelling3030 KENWOOD AVE—
2018-01-1518044-90000-00500HVAC - 1 or 2 Family Dwelling5152 HILLCREST DR—
2017-12-1517044-10000-15639HVAC - Apartment3861 VINTON AVE—
2017-11-0317044-90000-13888HVAC - 1 or 2 Family Dwelling1806 45TH ST—
2017-10-1917044-10000-13247HVAC - 1 or 2 Family Dwelling1425 37TH DR—
2017-09-2117044-90000-12029HVAC - 1 or 2 Family Dwelling140 AVENUE 28—
2017-09-1317044-90000-11606HVAC - 1 or 2 Family Dwelling18618 ARMINTA ST—

Showing the 100 most recent of 139 permits on file. Source: City of Los Angeles Open Data (LADBS Building Permits)

Permit data: City of Los Angeles Open Data (LADBS Building Permits), licensed under CC BY 4.0. HomeProFax matched permits to licensed contractors; data modified from the original. Not endorsed by the City of Los Angeles. Los Angeles permits shown run through May 2023.

Discipline, complaints & legal

No board discipline or complaints found in our current sources. Federal court search (CourtListener): no state-consistent possible match in our last sample run, or not yet run for this contractor.

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Reviews

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M S Mechanical Service Inc · HVAC Contractor
Montebello, CA
License on file: CA ••••9875
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