Updated: May 15, 2026
Location and Projects
Address
5147 GREENBUSH AVE, Sherman Oaks, CA, 91423
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SG Alfa Mechanical Inc
SG Alfa Mechanical Inc, 5147 Greenbush Ave, Sherman Oaks, CA (Employees: Gennady Sheynin, Gennady Sheynin, and Marsha Sheynin) holds a Warm Air Heating, Ventilating And Air Conditioning, Refrigeration license and 3 other licenses according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring SG Alfa Mechanical Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
SG Alfa Mechanical Inc Contact Information
Phone Number: (818) 907-6410
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Address: 5147 GREENBUSH AVE, Sherman Oaks, CA 91423
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Building Permits by SG Alfa Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Wall mounting air conditioning in garage mini split
Valuation:
N/A
Permit #:
22044-90000-11919
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace walk-in cooler and freeezer
Valuation:
N/A
Permit #:
19044-20000-10409
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install refrigeration system
Valuation:
N/A
Permit #:
15044-20000-13485
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Alteration to approved plans. put furnaces on the existing roof( orig. approval was for ground mounted furnaces) (orig. applic# 00044-20000-02748 bld'g plancheck#00016-20000-21676)
Valuation:
$0
Permit #:
00044-20000-09565
Status:
PC Fees Paid
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Comply with department order effective date 04/28/2004. permit will expire 30 days from issuance date. install 4 package units ductwork refrigeration compressors
Valuation:
N/A
Permit #:
05044-20000-01205
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install walk-in freezer 25x15x9
Valuation:
N/A
Permit #:
80016-0097
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Supplemental permit for change of address on original permit 05044-90000-07841 from 555 w universal terrace pkwy
Valuation:
$0
Permit #:
05044-20001-07841
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Install condensors for (3) deli case produce walk-in freezer walk-in cooler
Valuation:
N/A
Permit #:
11044-20000-02416
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Residential planned dev
Valuation:
$425
Permit #:
12-2562
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 2 refrigeration compressors replace ductwork. contractor holds a c-20 and c-38 license
Valuation:
N/A
Permit #:
01044-20000-01658
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace heat pump replace refrigeration unit ductwork. contractor holds c-20 and c-38 license
Valuation:
N/A
Permit #:
01044-20000-01657
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replaced air conditioning unit
Valuation:
N/A
Permit #:
13044-90000-00746
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental to permit no. 00044-20000-00062 - adding 1hp rooftop comparable ressor and 1 coil
Valuation:
N/A
Permit #:
00044-20001-00062
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Remove existing roof mechanical equipments & install new roof mechanical equipments
Valuation:
N/A
Permit #:
02016-20000-12928
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit- addition (4) duct type smk detectors (36) registers & witness test
Valuation:
N/A
Permit #:
02044-20003-04840
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Alteration to 3 existing air conditioning. units addition of 6 smoke detectors and 3 exhaust fans
Valuation:
N/A
Permit #:
98044-20000-06461
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install walk-in refrigerator by kool star. construction per engineered details
Valuation:
N/A
Permit #:
03016-20000-20636
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Instoled new walk-in cooler & walk-in freezer. instoled 2 refrigeration system
Valuation:
$0
Permit #:
05044-90000-07841
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Walk-in cooler & walk-in freezer and 2 refrigeration system 2 condensor unit
Valuation:
$0
Permit #:
05044-90000-07843
Status:
Refund Completed
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/a
Install (2) refrigeration compressors and change out hvac package unit
Valuation:
N/A
Permit #:
03044-20000-08715
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
SG Alfa Mechanical Inc License info
Verified License
| License # | 1155129 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Refrigeration |
| Date Issued | 05-13-2026 |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for SG Alfa Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 746311 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Refrigeration |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for SG Alfa Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 735109 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Refrigeration |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for SG Alfa Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 877529 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, Refrigeration |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for SG Alfa Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
72
Permits
- Building permit records show that SG Alfa Mechanical Inc has worked on 72 permitted projects.
SG Alfa Mechanical Inc Employees
GS
Gennady Sheynin
General Partner
GS
Gennady Sheynin
Rmo / Ceo / Pres
MS
Marsha Sheynin
Officer
MU
Mikhail Urman
Qualify Partner