Updated: Aug 06, 2025
Location and Projects
Address
227 PUUHALE RD, Honolulu, HI, 96819
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Hsi Mechanical Inc
Hsi Mechanical Inc, 227 Puuhale Rd, Honolulu, HI (Employees: Aaron K Won, Burton Y Takafuji, and David K Kamakea) holds a Masonry Contractor, Reinforcing Steel Contractor, Plumbing Contractor, General Building, Ventilating And Air Conditioning Contractor, Sheet Metal Contractor, Ventilating And Air Conditioning Contractor, General Building, Plumbing Contractor license and 1 other license according to the Hawaii license board.
Their BuildZoom score of 112 ranks in the top 3% of 3,768 Hawaii licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Hsi Mechanical Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Hsi Mechanical Inc Contact Information
Address: 227 PUUHALE RD, Honolulu, HI 96819
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Hsi Mechanical Inc Honolulu
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Hsi Mechanical Inc has a BuildZoom score of 112, which places them above 97% of 3,768 contractors in Hawaii.
Activity
|
4 projects
|
2025 |
|
12 projects
|
2024 |
|
28 projects
|
2023 |
Our building permit records indicate that Hsi Mechanical Inc has worked on at least
44.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
9 projects
|
Commercial Renovations |
|
7 projects
|
New Constructions |
|
24 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Hsi Mechanical Inc mostly works on
hvac project
and commercial renovation
projects.
Pricing
|
15 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
10 projects
|
$500k-$1mil |
|
15 projects
|
$1mil+ |
The typical size of their permits is approximately $58,500. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Alteration electrical work fire alarm air conditioning fire sprinkler
2025-04-15
(bp #921464) [tmk: 21033010] 650 s king st fasi municipal building wec 14th floor -- alterations to existing office space [third party review] *extension granted till august 21 2024*
Valuation:
$2,000,000
Permit #:
921464
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Office
New building electrical work fire alarm air conditioning fire sprinkler
2025-05-05
(bp #922235) [tmk: 24032001] 1120 nehoa st roosevelt high school - new gymnasium doe job #q22000-18 [multi-app: a2022-05-0795/0798/0801] [third party review]
Valuation:
$21,182,067
Permit #:
922235
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Gymnasium
(bp #922237) [tmk: 24032001] 1120 nehoa st roosevelt high school - demolish existing gymnasium [multi-app: a2022-05-0795/0798/0801] [third party review]
Valuation:
$633,401
Permit #:
922237
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
Gymnasium
Alteration electrical work fire alarm air conditioning
2024-09-27
(bp #913566) [tmk: 85028042] (12/6) 85-626 farrington hwy waianae intermediate school -- alterations to existing building a(classroom); d.o.e. #q85210-19[multiapp:a2022-12-0129, 0136, 0137, 0139, 0140, 0142, all approvals on a2022-12-0129)
Valuation:
$905,000
Permit #:
913566
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
Alteration electrical work air conditioning
2025-02-26
(bp #919536) [tmk: 26012002] (3/77) 1860 ala moana wailana @ waikiki - cooling tower replacement
Valuation:
$1,000,000
Permit #:
919536
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Existing multi-fa...
(bp #909467) [tmk: 94115023] 94-1091 oli lp kanoelani elementary school cafeteria expansion/renovation - new multipurpose shade structure building[multiapp a2022-10-1101 1103, 1107] [third party review]
Valuation:
$4,248,742
Permit #:
909467
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School cafeteria
(bp #913571) [tmk: 85028042] 85-626 farrington hwy waianae intermediate school -- alterations to existing building j(classroom); d.o.e. #q85210-19[multiapp:a2022-12-0129, 0136, 0137, 0139, 0140, 01420, all approvals on a2022-12-0129]
Valuation:
$208,000
Permit #:
913571
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
(bp #912129) [tmk: 91016082] 91-5335 kapolei pkwy kapolei middle school (bldg. b) - air conditioning efficiency replacement phase [third party review] (multi app: a2021-04-1005/1006)
Valuation:
$515,106
Permit #:
912129
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
Alteration electrical work fire alarm air conditioning fire sprinkler
2024-02-09
(bp #904605) [tmk: 23008001 23008002 23008003] [tmk: 23008002] (12/1) 777 ward ave blaisdell center redevelopment - concert hall improvements front of house ***2/23/24 addition of electrical contractor kontec llc per authorization form from general contractor*** [project number vi-34-21-c]
Valuation:
$5,500,000
Permit #:
904605
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Dressing rooms an...
New building electrical work fire alarm air conditioning fire sprinkler
2024-03-04
(bp #905436) [tmk: 74004001 74004071 74006012] 830 california ave. judiciary building - new 2-story building [multi-app: a2022-06-0254 & a2022-06-0258 - 0260] third party review
Valuation:
$27,532,360
Permit #:
905436
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Public use
Repair electrical work fire alarm air conditioning fire sprinkler
2024-12-11
(bp #916859) [tmk: 45023014] 59-88 imiloa (tpr) windward community college hale imiloa building - repair replace existing hvac system. (state job #20-6263) [third party review]
Valuation:
$6,275,000
Permit #:
916859
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
(bp #913567) [tmk: 85028042] 85-626 farrington hwy waianae intermediate school -- alterations to existing building b(cafeteria); d.o.e. #q85210-19[multiapp:a2022-12-0129, 0136, 0137, 0139, 0140, 0142, all approvals on a2022-12-0129]
Valuation:
$190,000
Permit #:
913567
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
(bp #909466) [tmk: 94115023] 94-1091 oli lp kanoelani elementary school - cafeteria alterations to existing building d [multiapp a2022-10-1101 1103, 1107] [third party review]
Valuation:
$945,513
Permit #:
909466
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School cafeteria
Alteration electrical work fire alarm air conditioning
2023-09-28
(bp #899447) [tmk: 95002040] soh-doe 95-1140 lehiwa dr various schools statewide - dloc air conditioning efficiency replacement - package 5 mililani middle school - alteration to building c [multi app a2018-10-0243~0245]doe job r73210-20 [third party review]
Valuation:
$603,905
Permit #:
899447
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
Alteration electrical work fire alarm air conditioning
2023-09-28
(bp #899446) [tmk: 95002040] soh-doe 95-1140 lehiwa dr various schools statewide - dloc air conditioning efficiency replacement - package 5 mililani middle school - alteration to building b [multi app a2018-10-0243~0245] doe job r73210-20 [third party review]
Valuation:
$862,027
Permit #:
899446
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
Alteration electrical work fire alarm air conditioning
2023-09-28
(bp #899445) [tmk: 95002040] soh-doe 95-1140 lehiwa dr various schools statewide - dloc air conditioning efficiency replacement - package 5 mililani middle school - alteration to building a [multi app a2018-10-0243~0245] doe job r73210-20 [third party review]
Valuation:
$569,546
Permit #:
899445
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
(bp #898560) [tmk: 41024068] 41-645 mokulama st. soh department of agriculture 41-645 mokulama st waimanalo baseyard - new maintenance building. [state job no.: doao -15a] [eplans multi-app: all approvals on a2020-04-0713; for a2020-05-0162 to 0164]
Valuation:
$780,000
Permit #:
898560
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New building electrical work fire alarm air conditioning
2023-09-12
(bp #898559) [tmk: 41024068] (6/11) 41 645 mokulama st. soh department of agriculture 41-645 mokulama st waimanalo baseyard - new office building. [state job no.: doao -15a] [eplans multi-app: all approvals on a2020-04-0713; for a2020-05-0162 to 0164]
Valuation:
$542,000
Permit #:
898559
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
(bp #894610) [tmk: 23026013 *491908 23026017 23026001] [tmk: *491908] [fmr tmk: 2-3-026:001 017 013] 1633 s king st soh doe washington middle school - building h - misc r & m for fy16 - doe job no: p24013-16
Valuation:
$278,413
Permit #:
894610
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
School
(bp #916863) [tmk: *495009 28023003] [state uhm proj #0000-22-202] (3/3) 2550 campus rd. uh at manoa crawford hall - replace/upgrade air conditioning system and controls
Valuation:
$2,393,914
Permit #:
916863
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
University
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Verified License
BuildZoom confirmed this contractor's license
Hsi Mechanical Inc License info
Verified License
| License # | CT-24578 |
| Status | Active |
| State | Hawaii |
| Type | Masonry Contractor, Reinforcing Steel Contractor, Plumbing Contractor, General Building, Ventilating And Air Conditioning Contractor, Sheet Metal Contractor, Ventilating And Air Conditioning Contractor, General Building, Plumbing Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Hsi Mechanical Inc at the Hawaii Department of Commerce & Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CT-19698 |
| Status | Inactive |
| State | Hawaii |
| Business Type | Corporation |
- According to the Hawaii Department of Commerce & Consumer Affairs, 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 Hsi Mechanical Inc at the Hawaii Department of Commerce & Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
Insured
| Insurer | Continental Insurance Company |
| Insured up to | $1,000,000 |
Insured
| Workers Comp Provider | Island Insurance Company, Limi |
293
Permits
- Building permit records show that Hsi Mechanical Inc has worked on 293 permitted projects.
Hsi Mechanical Inc Employees
AW
Aaron K Won
Responsible Managing Employee
BT
Burton Y Takafuji
Responsible Managing Employee
DK
David K Kamakea
Responsible Managing Employee
FM
Fred J Moore
Responsible Managing Employee
JS
Juan B Sebastian
Responsible Managing Employee
PF
Paul K Fujinaga
Responsible Managing Employee