Updated: Jul 15, 2026
Location and Projects
Address
551 FIFTH AVE. 35TH FLR.S3503, New York, NY, 10176
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Klaracon HVAC/Mechanical Contractor
Klaracon is a General Contracting Business operating primarily in New York City. The majority of projects involve gut renovations of apartments, as well mechanical systems, building core areas and retail spaces. The purpose behind Klaracon’s business model is to activate a more seamless and well-organized approach to managing construction projects. The goal is deliver work efficiently to clients with a relentless eye on quality workmanship and the end product.
From BuildZoom: Klaracon LLC, 551 Fifth Ave, New York, NY (Owned by: Simon M Barcoe) holds a Renovation license and 3 other licenses according to the Environmental Protection Agency license board.
Their BuildZoom score of 112 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 Klaracon LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Klaracon LLC Contact Information
Phone Number: (212) 882-3000
Address: 551 FIFTH AVE. 35TH FLR.S3503, New York, NY 10176
Klaracon LLC New York
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Klaracon LLC has a BuildZoom score of 112, which places them above 97% of 77,888 contractors in New York.
Activity
|
10 projects
|
2025 |
|
10 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Klaracon LLC has worked on at least
27.0 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
|
8 projects
|
Mechanical projects |
|
5 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Klaracon LLC mostly works on
mechanical project
and hvac project
projects.
Pricing
|
2 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
6 projects
|
$50k-$100k |
|
8 projects
|
$100k-$250k |
|
4 projects
|
$250k-$500k |
|
5 projects
|
$500k-$1mil |
|
2 projects
|
$1mil+ |
The typical size of their permits is approximately $129,600. 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.
Filing for existing sidewalk vault replacement at cellar and 1st floor of (6) story mixed use residence & commercial building (zoning: c1-6).structural and foundation work. no change of use occupancy egress or zoning under this application. filed under 1968 code
Valuation:
$1,006,030
Permit #:
M01221265-I1-GC-CX
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
This project involves the alteration of the existing mechanical system for the 13th and 14th floor including the installation of new vav boxes and ductwork distribution connected to the existing air handling units and a new bms system serving each floor
Valuation:
$749,865
Permit #:
M01228874-I1-MS
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Partial demolition of interior partitions and removal of doors and milliwork for interior renovation of 2 bathrooms on the 1st floor. no change in use egress or occupancy
Valuation:
$317,700
Permit #:
Q01124624-I1-GC
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Foundation work related to renovation of the cellar level including renovation expansion of (2) bathroomsat 79 5th avenue (cellar level). also includes reinforcement of a portion of the sidewalk vault along 16th stre no change to use egress or occupancy
Valuation:
$278,560
Permit #:
M08027775-I1-FO
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural work related to renovation of store at 1st floor 1st floor mezzanine and cellar including new mechanical equipment platform and addition of a new stair opening between cellar and 1st floor. no change in use egress or occupancy
Valuation:
$131,424
Permit #:
M01096843-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior renovation including removal of existing non-load bearing partitions soffits and finishes as well as minor new partition work addition of new accessible bathroom and replacement of existing elevator. no change in use egress or occupancy
Valuation:
$199,995
Permit #:
M01016617-I1-GC
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Removal of existing flooring sub-flooring & joists. create new mid-spam shallow footing install new framing sub-flooring & new flooring as per plans. all work to be in non-load bearing elements. no change in egress use or occupancy
Valuation:
$680,000
Permit #:
M01172960-I1-GC-CX
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Architectural renovation of three gallery spaces on 4th & 8th floor of an (11) story commercial use building. architectural work to include minor partition work. no change to use egress or occupancy
Valuation:
$659,801
Permit #:
M08009528-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Architectural renovation of commercial space on 1st floor & (3) bathrooms on 1st floor & cellar level of a (17) story mixed use building. no change to use egress or occupancy
Valuation:
$344,010
Permit #:
M00823454-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior demolition and construction for combination of unit 14ab & q on 12th floor construction (14th floor marketing). combine dwelling units per dob technical policy procedure notice # 3/1997
Valuation:
$249,979
Permit #:
M01006974-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing for interior renovation and related mechanical work of existing apartment 16c on 16th floor of a 16-story residential use building. no change to use egress or occupancy
Valuation:
$256,050
Permit #:
M00948762-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior demolition and construction for combination of unit 24 ab on 22nd floor construction (24th floor marketing). combine dwelling units per dob technical policy procedure notice # 3/1997
Valuation:
$89,995
Permit #:
M01139726-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Structural work associated with the renovation of offices at 13th & 14th floor at 79 5th avenue. no change to use egress or occupancy. associated job numbers: m01078059-i1 m01228945-i1 m01232318-i1 m01228874-i1
Valuation:
$127,998
Permit #:
M01231653-I1-ST
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Filing for renovation of office at 13 & 14 floors. work includes construction of non-load bearing partitions soffits finishes & minor partition work. no change to use egress or occupancy. related job #'s m01232318 m01228945 m01228874 & m01231653
Valuation:
$1,219,700
Permit #:
M01078059-I1-GC
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Structural work related to renovation of the cellar level including renovation expansion of (2) bathrooms. also includes reinforcement of a portion of the sidewalk vault framing along 16th street. no change to use egress or occupancy
Valuation:
$200,000
Permit #:
M08003590-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of restroom facility. existing mechanical system to be replaced by new split system heat pump. existing restroom fans to be replaced in kind. no change in use egress or occupancy
Valuation:
$55,000
Permit #:
Q01130154-I1-MS
Status:
approved
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Interior demolition and construction for combination of unit 8 d/e on 7th floor construction (8th floor marketing). combine dwelling units per dob technic
Valuation:
$249,999
Permit #:
M00993682-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior demolition and construction for combination of unit 28 c/d on 26th construction floor. combine dwelling units per dob technical policy procedure notice # 3/1997
Valuation:
$179,985
Permit #:
M00929605-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation to an existing 1st floor lobby of an apartment building. the scope of work does not require change of use egress or occupancy
Valuation:
$129,600
Permit #:
M00971094-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior renovation of an existing apartment 4p on 4th floor of a four (4) story residential building. no change in use egress or occupancy
Valuation:
$219,995
Permit #:
M00680160-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Klaracon LLC Reviews
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Klaracon LLC License info
Verified License
| License # | NAT-F248304-1 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Klaracon LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| County | Westchester County |
| Type | Home Improvement Contractor |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of July 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1460403-DCA |
| Status | Active |
| State | New York |
| Type | Home Improvement Contractor |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Klaracon LLC at the New York Department of Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 611854 |
| Status | Active |
| State | New York |
| Type | General Contractor Registered |
| Business Type | Limited Liability Company (Llc) |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Klaracon LLC with the New York City Department of Buildings
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
Insured
| Insurer | United Specialty Ins. Co |
Insured
| Workers Comp Provider | New York State Ins Fund |
66
Permits
- Building permit records show that Klaracon LLC has worked on 66 permitted projects.
Klaracon LLC Employees
SB
Simon Barcoe
Owner
SB
Simon M Barcoe
Owner