Updated: Jul 06, 2026
Location and Projects
Address
31753 N CAMINO ALEGRE, Castaic, CA, 91384
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HYS Mechanical System
HYS Mechanical System, 31753 N Camino Alegre, Castaic, CA (Owned by: Hyon Yong Shin) holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 97 ranks in the top 18% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring HYS Mechanical System, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
HYS Mechanical System Contact Information
Phone Number: (818) 416-8261
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Address: 31753 N CAMINO ALEGRE, Castaic, CA 91384
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Building Permits by HYS Mechanical System
This is a sample of this contractor's permits. Click here to access their complete permit history.
Ductless air conditioning. comply with department order effective date 10/11/2022. permit will expire 30 days from issuance date
Valuation:
N/A
Permit #:
22044-30000-12740
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Ductless heat pump. comply with department order effective date 10/11/2022. permit will expire 30 days from issuance date
Valuation:
N/A
Permit #:
22044-20000-14819
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Air conditioning mini split heat pump (1 ton) installation
Valuation:
N/A
Permit #:
23044-20000-23364
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Replace existing hvac system
Valuation:
N/A
Permit #:
23044-20000-26851
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Wall heater; replacing/vent pipe
Valuation:
N/A
Permit #:
17044-10000-03844
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Hvac unit upgrade
Valuation:
N/A
Permit #:
22044-30000-02150
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Ductless air conditioning
Valuation:
N/A
Permit #:
22044-30000-12738
Status:
triage
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
17044-10000-03844
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Install split system ductwork gas line extension
Valuation:
N/A
Permit #:
06044-20000-09708
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Relocate supply and return air registers (1 system)
Valuation:
N/A
Permit #:
07044-20000-03505
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Install new package system
Valuation:
N/A
Permit #:
11044-20000-06057
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Hvac changeout (6) and screening
Valuation:
N/A
Permit #:
BS0927654
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hvac changeout (6) and screening
Valuation:
N/A
Permit #:
BS0927656
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install split system ductwork
Valuation:
N/A
Permit #:
06044-20000-11620
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Install split system ductwork
Valuation:
N/A
Permit #:
10044-20000-01918
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
1 water source heat pump 5 ton
Valuation:
N/A
Permit #:
BM1120029
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replacing existing hvac system
Valuation:
N/A
Permit #:
25044-70000-11111
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
C/o hvac on roof w screening & electrical
Valuation:
N/A
Permit #:
B05-1204
Status:
expired
Fee:
$81
Permit Type:
N/A
Building Type:
N/A
C/o hvac on roof w screening & electrical
Valuation:
N/A
Permit #:
B05-1203
Status:
expired
Fee:
$99
Permit Type:
N/A
Building Type:
N/A
Install new hvac system @ unit 1041
Valuation:
N/A
Permit #:
06044-10000-06289
Status:
expired
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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HYS Mechanical System Reviews
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Verified License
BuildZoom confirmed this contractor's license
HYS Mechanical System License info
Verified License
| License # | 784212 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for HYS Mechanical System at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
17
Permits
- Building permit records show that HYS Mechanical System has worked on 17 permitted projects.
HYS Mechanical System Employees
HS
Hyon Yong Shin
Owner