Updated: Nov 21, 2025
Location and Projects
Address
5 Daisy Lane, Smithtown, NY, 11787
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Killoran Construction Inc
General Contractor and Custom Home Builder. We Specialize in Turing your dream home into a reality!
From BuildZoom: Killoran Construction Inc, 5 Daisy Ln, Smithtown, NY (Owned by: John Killoran) holds a Home Improvement Contractors license and 4 other licenses according to the Nassau County license board.
Their BuildZoom score of 95 ranks in the top 22% of 77,888 New York licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Killoran Construction Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Killoran Construction Inc Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Medium Multi-Family Remodel...
Other Residential Remodel
Office Renovation
Restaurant Renovation
Retail Renovation
Other Commercial Renovation
Seismic Retrofit
Pole Barn
Restaurant New Construction
Retail New Construction
Office Building New Constru...
Industrial New Construction
Hotel New Construction
Warehouse New Construction
Other Commercial New Constr...
Industrial Renovation
Hotel Renovation
Warehouse Renovation
ADU
Small Multi-Family New Cons...
Small Multi-Family Remodel ...
Whole Home Remodel
Modular Home Construction
Pool House
Other Secondary Structure N...
Addition
Vertical Addition
Killoran Construction Inc Contact Information
Phone Number: (631) 265-5497
Address: 5 Daisy Lane, Smithtown, NY 11787
Killoran Construction Inc Reviews
5 out of 5 stars, based on
1
review
-
By Sarah R.October 31, 2024Extension and remodel$3,000,000
Building Permits by Killoran Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Alteration type 2 - mech/hvac mechanical and plumbing work associated with alteration of the first floor to accommodate a new tenant. no change to egress occupancy or use
Valuation:
$47,000
Permit #:
421164572-02-EW-MH
Status:
PERMIT ISSUED - ENTIRE JOB/WORK
Fee:
$698
Permit Type:
N/A
Building Type:
E - business
Alteration of the first floor to accommodate a new tenant. no change to egress occupancy or use
Valuation:
$73,000
Permit #:
421164572-01-EQ-FN
Status:
issued
Fee:
$1,125
Permit Type:
N/A
Building Type:
N/A
Installation of a steel dunnage on the lower roof. no change to egress occupancy or use
Valuation:
$2,500
Permit #:
421164572-01-EW-OT
Status:
issued
Fee:
$225
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - roof dunnage installation of a steel dunnage on the lower roof. no change to egress occupancy or use
Valuation:
$2,500
Permit #:
421164572-03-EW-OT
Status:
issued
Fee:
$225
Permit Type:
N/A
Building Type:
S3-residence-multi-u
No Description Available
Valuation:
N/A
Permit #:
420878250-01-NB
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - structural installation of new structural ridge bea m and reinforcement of existing roof purlins and beams installation of s taircase and new dormer as per plans fi ed herwith no change to use egress or o ccupancy
Valuation:
$10,000
Permit #:
401712955-02-EW-OT
Status:
issued
Fee:
$126
Permit Type:
N/A
Building Type:
B2-2 family dwelling
No Description Available
Valuation:
N/A
Permit #:
402080822-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
420932735-02-EQ-FN
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
420968386-01-AL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - mech/hvac modification to existing hvac ductwork installation of air conditioning unit and modifications to plumbing fixtures are per plans filed herewith. no change to use egress or occupancy
Valuation:
$27,000
Permit #:
402080822-02-EW-MH
Status:
issued
Fee:
$467
Permit Type:
N/A
Building Type:
K4-store building
No Description Available
Valuation:
N/A
Permit #:
420932735-01-DM
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
401712955-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
P072600
Status:
issued
Fee:
$611,850
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
P064038
Status:
complete
Fee:
$426,000
Permit Type:
N/A
Building Type:
N/A
Construct second floor deck
Valuation:
$18,000
Permit #:
201318618
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
420878250-04-NB
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
P069275
Status:
complete
Fee:
$84,150
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
420932735-01-EQ-FN
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
420878250-03-NB
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
420878250-02-NB
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Killoran Construction Inc License info
Verified License
| License # | H18E6770000 |
| Status | Active |
| County | Nassau County |
| Type | Home Improvement Contractors |
| Business Type | Corporation |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Killoran Construction Inc 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 # | 29617 |
| Status | Active |
| County | Suffolk County |
| Type | H H1 - Gc |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of May, 2017. Check the current license status of Killoran Construction Inc 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 # | L003616 |
| Status | Inactive |
| Town | Town Of Southampton |
| Business Type | Corporation |
- 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.
Check this license's status for Killoran Construction Inc 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 # | H18E67700 |
| Status | Inactive |
| County | Nassau County |
| Type | Home Improvement Contractors |
| Business Type | Corporation |
- 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 Killoran Construction Inc 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 # | 611977 |
| Status | Inactive |
| State | New York |
| Type | General Contractor Registered, General Contractor Registered |
| Business Type | Corporation |
- 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 Killoran Construction Inc at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Insured
| Insurer | Western World Ins Company |
Insured
| Workers Comp Provider | Nysif |
9
Permits
- Building permit records show that Killoran Construction Inc has worked on 9 permitted projects.
Killoran Construction Inc Employees
JK
John Killoran
Owner
MK
Michael J Kiloran
Owner/Licensee
Excellent custom home Builder. Had no issues with the quality of the work nor the longevity of the project. Mike, the owner, cares about the product he provides and it shows!