Updated: May 16, 2026
Location and Projects
Address
40-25 CRESCENT ST, Long Island City, NY, 11101
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Rosenwach Tank Co HVAC/Mechanical Contractor
Rosenwach Tank Co LLC, 40-25 Crescent St, Long Island City, NY (Owned by: Doran John D) holds a General Contractor Non Registered license and 8 other licenses according to the New York license board.
Their BuildZoom score of 113 ranks in the top 3% of 77,888 New York licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Rosenwach Tank Co LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Rosenwach Tank Co LLC Contact Information
Phone Number: (718) 273-1717
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Address: 40-25 CRESCENT ST, Long Island City, NY 11101
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Rosenwach Tank Co LLC Long Island City
Quality
113
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Rosenwach Tank Co LLC has a BuildZoom score of 113, which places them above 97% of 77,888 contractors in New York.
Activity
|
41 projects
|
2025 |
|
25 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Rosenwach Tank Co LLC has worked on at least
70.0 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
|
HVAC projects |
|
8 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Rosenwach Tank Co LLC mostly works on
hvac project
and mechanical project
projects.
Pricing
|
4 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $100,000. 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.
Building Permits by Rosenwach Tank Co LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Filing herewith drawings to replace (1) existing cooling tower with new one (1) cwt cooling tower rtch-65a on existing concrete pads in-kind. this app do notrequire anew or amended c of o as there is no change in use exists or occpy
Valuation:
$25,000
Permit #:
M01215950-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith drawings to replace (1) existing cooling tower with new one (1) cooling tower cwt rtch-350a on existing dunnage in-kind at the 25 floor. this app do notrequire anew or amended c of o as there is no change in use exists or occpy
Valuation:
$25,000
Permit #:
M00995670-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith drawings to replace (1) existing cooling tower with new one (1) cooling tower cwt rtch-350a on existing dunnage in-kind at the 25 floor. this app do notrequire anew or amended c of o as there is no change in use exists or occpy
Valuation:
$25,000
Permit #:
M01142792-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Air conditioning platform installation. scope of work 1) install new steel platform per approved dob drawings on the 10th floor 2) new steel platform is for installation of new air compressors
Valuation:
N/A
Permit #:
M01220344-I1-SC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith drawings to remove and replace one (1) new wood water tank and associated piping to existing system. this application do not require a new or amended certificate of occupancy as there is no change in use exists or occupancy
Valuation:
$100,000
Permit #:
B01139630-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Facade repairs for compliance with ll11 facade inspection as shown on drawings. no change to use egress or occupancy
Valuation:
$350,000
Permit #:
M01013665-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Direct replacement of existing cooling towers
Valuation:
$225,000
Permit #:
M01173821-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Subsequent filing for mechanical work for the cooling tower replacement
Valuation:
$266,000
Permit #:
M01194274-S3-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1. building facade repairs. 2. facade inspection based on 3 lifelines beingpresent. 3. scaffolds shall be inspected in accordancewith the requirements of sections 3314.4.3.1through 3314.4.3.6
Valuation:
N/A
Permit #:
M01166623-I1-SC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith drawings to replace (1) existing cooling tower with new one (1) cooling tower cwt rtcf-185a on existing dunnage in-kind at the roof level. this app do not require a new or amended c of o as there is no change in use exists or occupancy
Valuation:
$30,000
Permit #:
B00818827-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Facade and roof restoration
Valuation:
$235,000
Permit #:
M01139268-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of structural steel dunnage at roof level to facilitate cooling tower installation to be performed under dob job number m00659182-i1. no change to use in egress or occupancy
Valuation:
$85,000
Permit #:
M00718360-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith drawings to remove and replace one (1) new steel water tank and associated piping to existing system. this application do not require a new or amended certificate of occupancy as there is no change in use exists or occupancy
Valuation:
$87,500
Permit #:
M00733454-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cooling tower installation. no change to use egress or occupancy
Valuation:
$552,250
Permit #:
M00659182-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural steel work on conjunction with cooling tower replacement under mechanical application m00908573-i1. no change to egress use or occupancy
Valuation:
$40,000
Permit #:
M00908600-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Facade repair project - no change to use egress or occupancy
Valuation:
$549,250
Permit #:
M00678305-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacement of cooling tower on the rooftop. no change
Valuation:
$100,000
Permit #:
M00908573-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of initial outrigger beam for facade repairs. this application is for a renewal of sr23/2796
Valuation:
N/A
Permit #:
B00993376-I1-SC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Material hoist (platform will not be used and is only shown for filing purposes as per ashraf omran)
Valuation:
N/A
Permit #:
M01030950-I1-SC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith drawings to replacing two (2) cooling towers on existing dunnage in-kind at the fifth floor level roof terrace adjacent to the south (courtyard) facade
Valuation:
$55,000
Permit #:
B00508322-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Rosenwach Tank Co LLC Reviews
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Verified License
BuildZoom confirmed this contractor's license
Rosenwach Tank Co LLC License info
Verified License
| License # | 002001 |
| Status | Active |
| State | New York |
| Type | General Contractor Non Registered |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 000276 |
| Status | Active |
| State | New York |
| Type | Fire Suppression Contractor B |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2001 |
| Status | Active |
| State | New York |
| Type | General Contractor - Non-Registered |
- When BuildZoom last verified this license, it had an expiration date of January, 2013. Check the current license status of Rosenwach Tank Co LLC with the New York City Department of Buildings
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 009227 |
| Status | Inactive |
| State | New York |
| Type | Plumber |
- According to the New York City Department of Buildings, 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 Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 000276 |
| Status | Inactive |
| State | New York |
| Type | Electrical Firm |
- According to the New York City Department of Buildings, 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 Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 009227 |
| Status | Inactive |
| State | New York |
| Type | Electrician |
- According to the New York City Department of Buildings, 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 Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 010287 |
| Status | Inactive |
| State | New York |
| Type | Welder |
- According to the New York City Department of Buildings, 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 Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 003621 |
| Status | Inactive |
| State | New York |
| Type | General Contractor Non Registered |
- According to the New York City Department of Buildings, 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 Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 003852 |
| Status | Inactive |
| State | New York |
| Type | Welder |
- According to the New York City Department of Buildings, 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 Rosenwach Tank Co LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
113
BuildZoom Score
Insured
| Insurer | Scottsdale Indemnity |
Insured
| Workers Comp Provider | Ny State Insurance Fund |
221
Permits
- Building permit records show that Rosenwach Tank Co LLC has worked on 221 permitted projects.
Rosenwach Tank Co LLC Employees
DD
Doran John D
Owner
NM
N Mancino
None