Updated: Jun 29, 2026
Location and Projects
Address
585 NORTH BARRY AVENUE, Mamaroneck, NY, 10543
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Flintlock Construction Serv LLC
Flintlock Construction Services specializes in large-scale building projects in Manhattan, working exclusively as an open shop construction company since its founding in 1997. The company was established by Andrew and Stephen “Chip” Weiss Jr., fourth-generation New York real estate development professionals who drew on their early experience building affordable housing in the Bronx and Brooklyn in the 1990s. Flintlock focuses on serving developers and property owners interested in constructing hotels, condominiums, municipal buildings, high rises, and cultural institutions in Manhattan. Over the past 15 years, Flintlock has completed more than 40 major projects, employing non-union trades and delivering cost savings of 20 to 30 percent compared to closed shop methods. The company emphasizes innovation, workplace safety, and sustainable construction practices, aiming to add value to both projects and the broader New York City environment.
Flintlock Construction Serv LLC Services
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Flintlock Construction Serv LLC Contact Information
Phone Number: (212) 608-1702
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Address: 585 NORTH BARRY AVENUE, Mamaroneck, NY 10543
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Flintlock Construction Serv LLC Mamaroneck
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Flintlock Construction Serv LLC has a BuildZoom score of 110, which places them above 96% of 77,888 contractors in New York.
Activity
|
11 projects
|
2025 |
|
8 projects
|
2024 |
|
13 projects
|
2023 |
Our building permit records indicate that Flintlock Construction Serv LLC has worked on at least
32.0 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
|
4 projects
|
New Constructions |
|
3 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Flintlock Construction Serv LLC mostly works on
new construction
and kitchen remodel
projects.
Pricing
|
4 projects
|
< $5k |
|
2 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
2 projects
|
$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 Flintlock Construction Serv LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Propose renovating the cellar replacing the storefront on the 1st and 2nd floors and reconfiguring exit stairs so they discharge directly to the street. demolish and construct partitions ceilings and doors. correct floors 3 -17 to show proper hotel room
Valuation:
$4,000,050
Permit #:
M00947143-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior renovation to revert units to their original state on partial 3rd (suite 3a 3b 3c) and 8th flrs (suite 8a 8b 8c). no change in use egress or occupancy
Valuation:
$500,000
Permit #:
M01110543-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Application file for gc work in conjunction with a temporary use permit (tup) for asylum seeker respite center pursuant to emergency executive order #230. interior renovation at 3rd-23rd floor of existing building
Valuation:
$350,000
Permit #:
M00826749-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structures to support signs #2 (m00498287-s9) #3 (m00498287-s8) #8n (m00498287-z3) #8s (m00498287-z4) #11 (m00498287-z5) #12 (m00498287-z6) #13 (m00498287-z7) #14 (m00498287-z8) #15 (m00498287-z9) and #16 (m00498287-y1)
Valuation:
N/A
Permit #:
M00498287-S6-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Modification of existing ductwork to be rerouted and ceiling alterations as indicated on the plans filed herewith. no change in use egress or occupancy
Valuation:
$95,940
Permit #:
M00976703-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing herewith plans to reconstruct stair and install new elevator shaft. partial demolish for openings in slabs and foundation work. removing and constructing walls ceilings and doors as shown on drawings filed herewith
Valuation:
$350,000
Permit #:
M00693236-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of new mechanical ductwork connecting refrigerant pipings and air conditioning systems
Valuation:
$800,040
Permit #:
M00958399-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Propose to renovate hotel rooms and common areas that are currently completely vacant on floors 1 thru 4th and roof
Valuation:
$800,140
Permit #:
Q00779839-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hereby filing for new 33 story r-1 hotel building
Valuation:
$10,000,000
Permit #:
M00498287-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of hotel rooms on third floor of existing hotel building. no change in use occupancy or egress
Valuation:
$430,000
Permit #:
M00561729-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of new concrete slab on metal deck and steel frame at the rear of the first floor (cellar roof) level. no change in use egress or occupancy
Valuation:
$90,000
Permit #:
M00352294-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install mechanical ductwork as shown on drawings filed herewith. in conjunction with alter w/co#
Valuation:
$2,000,130
Permit #:
M08009096-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior renovation in breakfast sitting area as indicated on the plans filed herewith. no change in use egress or occupancy
Valuation:
$198,276
Permit #:
M00976680-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - gen. constr. removal of non-structural partitions & elements from interiors at cel, 001-002 roof and bulkhead levels.removal of plumbing fixtures on 1st and 2nd floor. no change to use egress or occupancy
Valuation:
$375,600
Permit #:
121291244-01-EW-OT
Status:
issued
Fee:
$4,086
Permit Type:
N/A
Building Type:
N/A
Earthwork as required as shown on drawings filed herewith. foundation work as required as shown on drawings filed herewith
Valuation:
$100,000
Permit #:
M00713888-I1-FO-EA
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior renovation to revert units to their original state on partial 2nd floor no change in use egress or occupancy. removal of violations #39121629l 39122475m
Valuation:
$30,000
Permit #:
M01127208-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - gen. constr. renovate existing hotel on 3rd through 13th floor. work being filed in conjunction with alteration 1 application number 120272025. no change to use egress or occupancy
Valuation:
$8,200,000
Permit #:
122998355-01-EW-OT
Status:
issued
Fee:
$84,674
Permit Type:
N/A
Building Type:
N/A
Filing to obtain certificate of compliance for two (2) existing units filed under nb 120745471. no work to be done. no change to use egress or occupancy
Valuation:
$1,000
Permit #:
M01269480-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repair columns and steel framing with new sidewalk with vault slab and beam
Valuation:
$225,011
Permit #:
M00958478-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Propose to repair replacement of slab and install new beams slab framing and stair opening between 1st and 2nd floor
Valuation:
$150,038
Permit #:
M00957602-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Flintlock Construction Serv LLC License info
Verified License
| License # | 004455 |
| Status | Active |
| State | New York |
| Type | General Contractor Registered |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Flintlock Construction Serv 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 # | 023441 |
| Status | Active |
| State | New York |
| Type | Superintendent Of Construction |
- BuildZoom has not verified this license since May, 2025.
Verify this license's status for Flintlock Construction Serv 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 # | 4455 |
| Status | Active |
| State | New York |
| Type | Gc Safety Registration, Cn - Construction |
- When BuildZoom last verified this license, it had an expiration date of December, 2012. Check the current license status of Flintlock Construction Serv 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 # | 024475 |
| Status | Inactive |
| State | New York |
| Type | Superintendent Of Construction |
- 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 Flintlock Construction Serv 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 # | 020790 |
| Status | Inactive |
| State | New York |
| Type | Superintendent Of Construction |
- 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 Flintlock Construction Serv 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 # | 021926 |
| Status | Inactive |
| State | New York |
| Type | Superintendent Of Construction |
- 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 Flintlock Construction Serv 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 # | 023142 |
| Status | Inactive |
| State | New York |
| Type | Superintendent Of Construction |
- 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 Flintlock Construction Serv 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 # | 024916 |
| Status | Inactive |
| State | New York |
| Type | Superintendent Of Construction |
- 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 Flintlock Construction Serv 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 # | 023834 |
| Status | Inactive |
| State | New York |
| Type | Superintendent Of Construction |
- 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 Flintlock Construction Serv LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Allied Ins Company |
Insured
| Workers Comp Provider | Us Fire Insurance Company |
263
Permits
- Building permit records show that Flintlock Construction Serv LLC has worked on 263 permitted projects.
Flintlock Construction Serv LLC Employees
AW
Andrew Weiss
Owner