Updated: Mar 04, 2026
Location and Projects
Address
3924 Despaux Dr, Chalmette, LA, 70043
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Alvin J Siener Jr HVAC/Mechanical Contractor
Alvin J Siener Jr, 3924 Despaux Dr, Chalmette, LA (Owned by: Alvin Siener Jr) holds a Mechanical license according to the Louisiana license board.
Their BuildZoom score of 93 ranks in the top 27% of 31,948 Louisiana licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Alvin J Siener Jr, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Alvin J Siener Jr Services
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Alvin J Siener Jr Contact Information
Phone Number: (504) 416-6621
Address: 3924 Despaux Dr, Chalmette, LA 70043
Alvin J Siener Jr Reviews
5 out of 5 stars, based on
2
reviews
-
By Charlotte H.August 13, 2023AC repair$200
-
By John S.May 6, 2015installed a complete system$5,700.002 daysA/C replacement
I had a complete system insalled, the work was done on time and the price was less than I expected. I would use this company again. Good job Mr Siener thanks
This is a sample of this contractor's permits. Click here to access their complete permit history.
20 seer 4 ton complete system gas heating
Valuation:
N/A
Permit #:
19-33618-HVAC
Status:
complete
Fee:
$73
Permit Type:
N/A
Building Type:
Building use group
Install 2 new gas air handler and air conditioning. alvin siener (#3181) 504-416-6621 17-20634-newc
Valuation:
N/A
Permit #:
17-31189-HVAC
Status:
complete
Fee:
$113
Permit Type:
N/A
Building Type:
Building use group
Installation of 3 ton air conditioning splits system units. credit card
Valuation:
N/A
Permit #:
19-05624-HVAC
Status:
complete
Fee:
$150
Permit Type:
N/A
Building Type:
Building use group
Nc
Valuation:
$450,000
Permit #:
K06-2899
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sf
Valuation:
$200,000
Permit #:
K07-2528
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sf
Valuation:
$185,000
Permit #:
K07-754
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building out
Valuation:
$50,000
Permit #:
K08-988
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Alvin J Siener Jr License info
Verified License
| License # | 34970 |
| Status | Active |
| State | Louisiana |
| Type | Mechanical |
| Class | Commercial License Certificate |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Alvin J Siener Jr at the Louisiana Licensing Board.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
7
Permits
- Building permit records show that Alvin J Siener Jr has worked on 7 permitted projects.
Alvin J Siener Jr Employees
AJ
Alvin Siener Jr
Owner
SJ
Siener, Alvin J. Jr.
We contacted Mr. Siener in the early afternoon on a Saturday when temperature was very near 100 degrees. We had called another AC contractor the previous day but he was unavailable for several more days. Mr. Seiner arrived at our house approximately 90 minutes after we contacted him. He quickly diagnosed our unit and took care of the issue. Even with the overtime charge since it was a weekend, his fees were very reasonable and less than we expected. He was very polite and professional. We highly recommend Mr. Alvin Siener.