Updated: Feb 20, 2026
Location and Projects
Address
2532 E SMIDERLE LOOP, Ontario, CA, 91764
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Jason Jang HVAC/Mechanical Contractor
Jason Jang, 2532 E Smiderle Loop, Ontario, CA (Employee: Jason Jang) holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 85 does not rank in the top 50% of California contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Jason Jang, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Jason Jang Contact Information
Phone Number: (909) 647-5522
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Address: 2532 E SMIDERLE LOOP, Ontario, CA 91764
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install furnace in attic and replace 4 ton air conditioning unit
Valuation:
$4,000
Permit #:
MECH21-0017
Status:
issued
Fee:
$385
Permit Type:
HVAC changeout re...
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Jason Jang License info
Verified License
| License # | 1035039 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Jason Jang at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
85
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
Jason Jang Employees
JJ
Jason Jang
Sole Owner
JJ
Jason Jang
Sole Owner