Updated: Jun 09, 2026
Location and Projects
Address
100 Denton Ave, New Hyde Park, NY, 11040
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T.F. O'Brien Construction
T.F. O'Brien, 100 Denton Ave, New Hyde Park, NY (Owned by: Thomas OBrien) holds a Home Improvement Contractors license and 11 other licenses according to the Nassau County license board.
Their BuildZoom score of 101 ranks in the top 12% of 77,888 New York licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring T.F. O'Brien, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
T.F. O'Brien Contact Information
Phone Number: (516) 488-3660
Address: 100 Denton Ave, New Hyde Park, NY 11040
T.F. O'Brien New Hyde Park
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
T.F. O'Brien has a BuildZoom score of 101, which places them above 88% of 77,888 contractors in New York.
Activity
|
1 project
|
2025 |
|
2 projects
|
2023 |
Our building permit records indicate that T.F. O'Brien has worked on at least
3.0 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.
Pricing
|
2 projects
|
$20k-$50k |
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.
Install new hvac rooftop unit as per plans. no change to use occupancy or egress
Valuation:
$25,000
Permit #:
B01260565-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace two split air conditioning systems
Valuation:
$20,750
Permit #:
Q07997235-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 7.5 ton split hvac system
Valuation:
$20,000
Permit #:
Q08020774-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - mech/hvac replace 10 ton heat pump unit on existing steel dunnage and connect to existing ductwork
Valuation:
$17,000
Permit #:
440500539-01-EW-MH
Status:
issued
Fee:
$369
Permit Type:
N/A
Building Type:
K1-store building
Replace air conditioning unit
Valuation:
$25,000
Permit #:
Q00435739-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
440273623-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
440354652-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
321265714-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Legalize replacement of split air conditioning system per plans in order to obtain equipment use permits to satisfy fdny violation 11453938j
Valuation:
$6,350
Permit #:
321265714
Status:
ISSUED
Fee:
$286
Permit Type:
Mechanical/HVAC
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
321118116-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - mech/hvac new scope of work: replace (2) outdoor 10 ton condenders with (1) 10 ton &(3)5 ton condensers. repalce (1) air handler in basment with (1) 10 ton air handler install (3) new air handlers in attic
Valuation:
$60,000
Permit #:
440273623-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
M1-church synagogue
Alteration type 2 - mech/hvac mechanical alterations include duct work and replacement of chiller on the 13th floor mezzanine and installatio of a backflow preventer as per plans filed herewith. no change in use, egress or occupancy
Valuation:
$170,000
Permit #:
103925488-01-EW-MH
Status:
issued
Fee:
$1,840
Permit Type:
N/A
Building Type:
R0-condominiums
Convert existing heating unit to hvac unit. replace gas furnace and install cooling coil and condensing unit
Valuation:
$7,523
Permit #:
321118116
Status:
ISSUED
Fee:
$296
Permit Type:
Mechanical/HVAC
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
310304131-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
100965476-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
310304131-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
100798031-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
100798031-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - gen. constr 189/06-install hvac unit on roof in conjunction with appl.# 301483589. this application supercedes #302144169 which was filed in error. no change in use egress or occupancy. professional certification requested
Valuation:
$25,000
Permit #:
310304131-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
M1-church synagogue
No Description Available
Valuation:
N/A
Permit #:
400852555-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
T.F. O'Brien Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
T.F. O'Brien License info
Verified License
| License # | H0202960000 |
| 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 T.F. O'Brien at the Nassau County Office of Consumer Affairs.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 0832373-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 T.F. O'Brien 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
| Status | Active |
| Town | Town Of Hempstead |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of T.F. O'Brien with the Town of Hempstead Building Department
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 0832373-DCA |
| Status | Active |
| State | New York |
| Type | Home Improvement Contractor |
- When BuildZoom last verified this license, it had an expiration date of March, 2018. Check the current license status of T.F. O'Brien with 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 # | 56665 |
| Status | Active |
| County | Suffolk County |
| Type | Restricted Plumbers RP1 - HVAC |
- When BuildZoom last verified this license, it had an expiration date of March, 2018. Check the current license status of T.F. O'Brien with the Suffolk County Department of Consumer Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 56666 |
| Status | Active |
| County | Suffolk County |
| Type | Restricted Plumbers Rp9 - Natural Gas |
- When BuildZoom last verified this license, it had an expiration date of March, 2018. Check the current license status of T.F. O'Brien with the Suffolk County Department of Consumer Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 56512 |
| Status | Active |
| County | Suffolk County |
| Type | Restricted Electrical RE1 - HVAC |
- When BuildZoom last verified this license, it had an expiration date of February, 2018. Check the current license status of T.F. O'Brien with the Suffolk County Department of Consumer Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 22875 |
| Status | Active |
| County | Suffolk County |
| Type | H H1 - Gc |
- When BuildZoom last verified this license, it had an expiration date of April, 2014. Check the current license status of T.F. O'Brien with the Suffolk County Department of Consumer Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-65592-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for T.F. O'Brien at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | H02029600 |
| 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.
Check this license's status for T.F. O'Brien 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 # | 009800 |
| 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.
Check this license's status for T.F. O'Brien 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 # | 2433 |
| Status | Inactive |
| Town | Town Of Hempstead |
| Type | Plumber |
- According to the Town of Hempstead Building Department, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for T.F. O'Brien at the Town of Hempstead Building Department.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Insured
| Insurer | Merchants Mutual Ins Co |
Insured
| Workers Comp Provider | New Hampshire Ins Co |
61
Permits
- Building permit records show that T.F. O'Brien has worked on 61 permitted projects.
T.F. O'Brien Employees
DO
D Obrien
Owner
DO
Daniel Obrien
Owner
JP
Joyce, Paul
TO
Thomas OBrien
Owner