Updated: Jun 20, 2026
Location and Projects
Address
1129 4TH AVE, Los Angeles, CA, 90019
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Gaju Heart Cooling HVAC/Mechanical Contractor
Gaju Heart Cooling, 1129-4 Th Ave, Los Angeles, CA (Owned by: Yong Chan Lee) holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gaju Heart Cooling, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Gaju Heart Cooling Contact Information
Phone Number: (213) 220-3441
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Address: 1129 4TH AVE, Los Angeles, CA 90019
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of mini split air conditioning units
Valuation:
N/A
Permit #:
23044-90000-15239
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Lg mini split air conditioning 36000 btu 3 ton heat pump
Valuation:
N/A
Permit #:
19044-10000-07135
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit for permit #15044-10000 & 10001-06301 to change contractor to ga ju heart cooling lic. #941283. comply with department order effective date 08/28/2015. permit will expire 30 days from issuance date
Valuation:
N/A
Permit #:
15044-10002-06301
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to 17044-10000-01044 to addition kitchen hood/vent
Valuation:
N/A
Permit #:
17044-10002-01044
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Replace heating furnace
Valuation:
N/A
Permit #:
17044-10000-01044
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental to permit #12044-10000-00287 for restroom vent fan dryer vent smoke detector & witness test
Valuation:
N/A
Permit #:
12044-10001-00287
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Witness test
Valuation:
N/A
Permit #:
14044-10000-09158
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace air conditioning & heating
Valuation:
N/A
Permit #:
12044-10000-00287
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
17044-10000-01044
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit to 17044-10000-01044 to addition kitchen hood/vent
Valuation:
N/A
Permit #:
17044-10002-01044
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
14044-10000-09158
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Installation of an air conditioning unit. duct testing required
Valuation:
N/A
Permit #:
MEC2012-00485
Status:
expired
Fee:
N/A
Permit Type:
Mechanical permit
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Gaju Heart Cooling License info
Verified License
| License # | 941283 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Gaju Heart Cooling at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Security National Insurance Company |
7
Permits
- Building permit records show that Gaju Heart Cooling has worked on 7 permitted projects.
Gaju Heart Cooling Employees
YL
Yong Chan Lee
Owner