Updated: Jun 23, 2026
Location and Projects
Address
42-02 Astoria Blvd, Long Island City, NY, 11103
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Difiore & Sons Custom Photos
Difiore & Sons Custom HVAC/Mechanical Contractor
Difiore & Sons Custom, 42-02 Astoria Blvd, Long Island City, NY (Owned by: Gandolfo Di Fiore) holds a Home Improvement Contractors license and 9 other licenses according to the Nassau County 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 Difiore & Sons Custom, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Difiore & Sons Custom Contact Information
Phone Number: (330) 812-4691
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Address: 42-02 Astoria Blvd, Long Island City, NY 11103
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Difiore & Sons Custom Long Island City
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Difiore & Sons Custom has a BuildZoom score of 112, which places them above 97% of 77,888 contractors in New York.
Activity
|
2 projects
|
2025 |
|
5 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Difiore & Sons Custom has worked on at least
9.0 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
|
5 projects
|
Mechanical projects |
|
4 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Difiore & Sons Custom mostly works on
mechanical project
and hvac project
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $75,000. 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 Difiore & Sons Custom
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior renovation to apartment 1d. new partitions doors stair trim cabinetry and finishesthroughout. plumbing work filed under subsequent application. change to certificate ofoccupancy for duplex of apartment to cellar filed under application 421535734
Valuation:
$79,350
Permit #:
Q00886851-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Duplex apartment 1k to cellar. interior renovation to apartments 1k 1l on first floor. interiorrenovation to apartments 2a 2l on second floor. interior renovation to janitor apartment incellar. addition accessory storage lockers in cellar. no change to building
Valuation:
$282,500
Permit #:
Q00459749-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior renovation to apartment 1c to address violations 35646663l 35646665p and 35646664n. change ofcertificate of occupancy for duplex of apartment to cellar filed under application 421535734.no change to use egress or occupancy under this application
Valuation:
$31,250
Permit #:
Q00813904-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New hvac units at apartment 1c with associated piping in conjunction with gc application q00813904. no change to use egress or occupancy under this application
Valuation:
$10,000
Permit #:
Q00813904-S2-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition supers apartment and day-care in cellar. new partitions and finishes in cellar. no change to bulk
Valuation:
$200,000
Permit #:
Q00727863-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Full foundation and earthwork in conjunction with new 12 story residential building with partial cellar level
Valuation:
$100,000
Permit #:
Q00484597-S6-FO-EA
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace rooftop hvac unit. use all existing connections and structure. no change to use egress or occupancy under this application
Valuation:
$52,500
Permit #:
Q00958798-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Herewith filing alteration to legalize existing interior partitions plumbing fixtures and air conditioning units on mezzanine level to comply with violations #34894453j 35455327k 35455325r 35455326z 35590581h 35590582j.no change in use occupancy or egress
Valuation:
N/A
Permit #:
Q00667937-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical systems alterations to suite 403 for proposed tenant improvements as per plans
Valuation:
$125,000
Permit #:
M01189054-S1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of mechanical systems equipment and ductwork through-out new building. filed in conjunction with new building bis #421133918
Valuation:
$1,000
Permit #:
Q00480862-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Erect construction fence to safe guard property at osp filed in conjunction with nb 421133918. no changeto the use egress and occupancy
Valuation:
$3,000
Permit #:
Q00473955-I1-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Soe work filed in conjucntion with proposed 13 story mixed-use new building
Valuation:
$100,000
Permit #:
Q00484597-S5-SE
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 1 required to meet new building requirements (28-101.4.5) alteration type 1 filed in conjunction with dob now aapplication numbers q0034 8163 q00346786 q00346788 q00350235
Valuation:
$900,700
Permit #:
421939273-01-AL
Status:
issued
Fee:
$9,529
Permit Type:
N/A
Building Type:
N/A
Installation of an 8 temporary construction fence
Valuation:
$1,500
Permit #:
Q00360439-I1-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 12'-0 (including splays) curb cut in conjunction with new building application # 421133918
Valuation:
$100
Permit #:
Q00474334-I1-CC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Herewith filing foundation and earthwork in conjunction with nb 421133918
Valuation:
$100
Permit #:
Q00480835-I1-FO-EA
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration for support of excavation in conjunction with nb #421133918
Valuation:
$1,000
Permit #:
Q00534236-I1-SE
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing for structural work in conjunction with nb 421133918
Valuation:
$10,000
Permit #:
Q00540042-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
P082906
Status:
issued
Fee:
$1,464,500
Permit Type:
N/A
Building Type:
N/A
Full demolition - full demolition of one story warehouse using hand held equipment. machine will be used to load out debris and back-fill only
Valuation:
N/A
Permit #:
421485663-01-DM
Status:
issued
Fee:
$260
Permit Type:
N/A
Building Type:
E1-warehouse
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Verified License
BuildZoom confirmed this contractor's license
Difiore & Sons Custom License info
Verified License
| License # | 183141 |
| Status | Active |
| County | Nassau County |
| Type | Home Improvement Contractors |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Difiore & Sons Custom at the Nassau County Office of Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 007285 |
| Status | Active |
| State | New York |
| Type | General Contractor Registered, General Contractor Registered, General Contractor Registered |
- When BuildZoom last verified this license, it had an expiration date of March, 2026. Check the current license status of Difiore & Sons Custom with the New York City Department of Buildings
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 024328 |
| Status | Active |
| State | New York |
| Type | Superintendent Of Construction |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Difiore & Sons Custom 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 # | 0674161-DCA |
| Status | Active |
| State | New York |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Difiore & Sons Custom 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 # | 183141 |
| Status | Active |
| County | Nassau County |
| Type | Home Improvement Contractors |
- When BuildZoom last verified this license, it had an expiration date of September, 2023. Check the current license status of Difiore & Sons Custom with the Nassau County Office of Consumer Affairs
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 024044 |
| Status | Active |
| State | New York |
| Type | Superintendent Of Construction |
- BuildZoom has not verified this license since May, 2025.
Verify this license's status for Difiore & Sons Custom 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 # | H18E0460000 |
| Status | Inactive |
| County | Nassau County |
| Type | Home Improvement Contractors |
- According to the Nassau County Office of 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 Difiore & Sons Custom at the Nassau County Office of Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | L005739 |
| Status | Inactive |
| Town | Town Of Southampton |
- According to the Town of Southampton Department of Land Management, 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 Difiore & Sons Custom at the Town of Southampton Department of Land Management.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | H18E04600 |
| Status | Inactive |
| County | Nassau County |
| Type | Home Improvement Contractors |
- According to the Nassau County Office of 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 Difiore & Sons Custom at the Nassau County Office of Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 022823 |
| 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 Difiore & Sons Custom at 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 | Pennsylvania Ins |
Insured
| Workers Comp Provider | Nysif |
82
Permits
- Building permit records show that Difiore & Sons Custom has worked on 82 permitted projects.
Difiore & Sons Custom Employees
AM
Angelo Mastrogiacomo
Manager
GF
Gandolfo Di Fiore
Owner
JM
Joseph N Mazzola
President
JM
Joseph N. Mazzola
Licensee
SD
Santino Difiore
Pres