Updated: May 14, 2026
Location and Projects
Address
11625 HARO AVENUE, Downey, CA, 90241
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Pro Tech Air HVAC/Mechanical Contractor
Pro Tech Air Inc, 11625 Haro Ave, Downey, CA (Employees: Dong Hun Shin, Henry Adam Leal Jr, and Jong Soo Kang) holds a Warm Air Heating, Ventilating And Air Conditioning license and 2 other licenses according to the California license board.
Their BuildZoom score of 99 ranks in the top 15% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Pro Tech Air Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Pro Tech Air Inc Contact Information
Phone Number: (213) 422-1190
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Address: 11625 HARO AVENUE, Downey, CA 90241
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Revision to approved plans under 19044-10000-08356. revisions include revising garage exhaust changed quantity in corridor ventilation fans (same total capacity) and reroute of ductwork and install dampers at select locations. (no change to garage make up air- per previously approved plans)
Valuation:
N/A
Permit #:
19044-10001-08356
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit for air conditioning smoke detector witness test original permit # 21044-90000-05492
Valuation:
N/A
Permit #:
22044-90000-01758
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Revision to previously approved plan. (2) type ii ducts for ovens with integral hoods
Valuation:
N/A
Permit #:
23044-10001-08019
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to permit#23044-90000-07924 request change of address. addition units to address #101 & 102
Valuation:
N/A
Permit #:
23044-10001-07924
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Hvac for three story apartment building with 1 story and 1 level basement of parking. includes garage ventillation
Valuation:
N/A
Permit #:
16044-10000-04841
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Provide & install air conditioning system
Valuation:
N/A
Permit #:
22044-90000-12598
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of hvac systems in a 3-story w/2-levels of parking garage 27-unit apartment. building
Valuation:
N/A
Permit #:
17044-20000-00977
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Addition of standby indoor emergency generator room ventilation
Valuation:
N/A
Permit #:
22044-10000-06546
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Plan check for heating venting and air conditioning
Valuation:
N/A
Permit #:
24044-10000-08474
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace 4 - 3 ton air conditioning unit & duct work
Valuation:
N/A
Permit #:
24044-10000-06182
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Additional permit for witness test original permit # 22044-90000-12598
Valuation:
N/A
Permit #:
23044-90000-03621
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace 1ea. rooftop air conditioning unit replace duct work
Valuation:
N/A
Permit #:
21044-90000-01403
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Revision to approved plans - relocation of ventilation opening/louver for elevator equipment room
Valuation:
N/A
Permit #:
17044-20002-00977
Status:
approved
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Installation of 1 type i hood and general hvac
Valuation:
N/A
Permit #:
19044-20000-14623
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Provide & install 4ea. air conditioning mini split systems. provide & install kitchen hood duct work provide & install restroom fan and duct work
Valuation:
N/A
Permit #:
17044-90000-05799
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New hvac for 5 story 44 unit apartment with 1 level open parking garage and 1 level enclosed parking
Valuation:
N/A
Permit #:
17044-20000-00936
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
>>as-built<< bank of hope- install (1) new pad for existing rooftop unit >>com17-00973<<
Valuation:
$3,000
Permit #:
MEC18-00331
Status:
complete
Fee:
$103
Permit Type:
N/A
Building Type:
N/A
New hvac system for residential floors only within apartment building. includes air conditining and environmental ventilation
Valuation:
N/A
Permit #:
16044-10000-05688
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New 2 each supply outlet
Valuation:
N/A
Permit #:
24044-10000-16126
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace 1ea. gas furnace
Valuation:
N/A
Permit #:
21044-90000-03149
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
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Pro Tech Air Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Pro Tech Air Inc License info
Verified License
| License # | 1149794 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Date Issued | 02-02-2026 |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Pro Tech Air Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 795728 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Pro Tech Air 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 # | 773279 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| 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 Pro Tech Air Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Security National Insurance Company |
198
Permits
- Building permit records show that Pro Tech Air Inc has worked on 198 permitted projects.
Pro Tech Air Inc Employees
DS
Dong Hun Shin
Sole Owner
HJ
Henry Adam Leal Jr
Rmo / Ceo / Pres
JK
Jong Soo Kang
Rmo / Ceo / Pres