Updated: Nov 17, 2025
Location and Projects
Address
4 Belford Avenue, Bay Shore, NY, 11706
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Byrn & Son Plumber
Byrn & Son, Inc, 4 Belford Ave, Bayshore, NY (Owned by: Gerard Allaire) holds a Home Improvement Contractors license and 7 other licenses according to the Nassau County license board.
Their BuildZoom score of 97 ranks in the top 18% of 77,888 New York licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Byrn & Son, Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Byrn & Son, Inc Services
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Byrn & Son, Inc Contact Information
Phone Number: (631) 277-7683
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Address: 4 Belford Avenue, Bayshore, NY 11706
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Byrn & Son, Inc Bayshore
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Byrn & Son, Inc has a BuildZoom score of 97, which places them above 82% of 77,888 contractors in New York.
Activity
|
1 project
|
2025 |
Our building permit records indicate that Byrn & Son, Inc has worked on at least
1.0 project over the past year.
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
|
1 project
|
$100k-$250k |
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.
Proposed storm water drainage design
Valuation:
$120,000
Permit #:
S00991212-S2-PL
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing - alteration type 2 install mechanical equipment and related ductwork. install plumbing fixtures and related piping as shown on drawings filed herewith. no change in use egress or occupancy
Valuation:
$128,000
Permit #:
321532427-02-PL
Status:
issued
Fee:
$1,532
Permit Type:
N/A
Building Type:
U2-utility bureau pr
No Description Available
Valuation:
N/A
Permit #:
321916076-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing - alteration type 2 filing for the sound proofing of existin g school including the installa on of new windows doors ceilings hvac etc. and all other construction as su mitted herewith. there is no change in use ocucpancy or egress
Valuation:
$850,000
Permit #:
400575999-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
M3-church synagogue
No Description Available
Valuation:
N/A
Permit #:
420976091-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing - alteration type 2 filing for utility trenching for gas services and electrical feed. installing new trench drain with drainage connections. no change in use egress or occupancy
Valuation:
$94,300
Permit #:
122721411-03-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Q6-outdoor recreatio
No Description Available
Valuation:
N/A
Permit #:
440172340-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
201085459-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing - alteration type 2 replacement of existing field storm drainage system. installation of new hose bib connection
Valuation:
$225,000
Permit #:
220383225-02-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
W6-educational struc
No Description Available
Valuation:
N/A
Permit #:
400575999-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
440258864-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 1 - combine existing_lot numbers 33 and 31 into one lot (number 31) create 16 open parking spaces. no change in exi sting bank egress use or occupancy. se plans. extend existing curb cut (to a to tal length of 30'-o") extend exist. cur cut 24'docket #5583 6-0 to total length of 30'-0
Valuation:
$60,000
Permit #:
300204909-01-AL
Status:
SIGNED OFF
Fee:
$821
Permit Type:
N/A
Building Type:
Commercial - comm...
Replace boiler and oil burner with gas boiler. no change in use egress or occupancy
Valuation:
$18,500
Permit #:
440235764-01-PL
Status:
issued
Fee:
$409
Permit Type:
N/A
Building Type:
N/A
Replace boiler and oil burner with gas boiler. no change in use egress or occupancy
Valuation:
$18,500
Permit #:
440235764-01-EW-BL
Status:
issued
Fee:
$409
Permit Type:
N/A
Building Type:
N/A
Plumbing - alteration type 2 install interior non-load bearing walls as shonw on drawing in order to create a bakery in an area previously us ed as a barber shop. the two existing inks used by the barber shop would be re placed by a double sink in the same loc tion for the bakery
Valuation:
$6,200
Permit #:
400555519-01-PL
Status:
issued
Fee:
$161
Permit Type:
N/A
Building Type:
K1-store building
No Description Available
Valuation:
N/A
Permit #:
400555519-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
400755759-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
400755759-01-EW-BL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
201052751-01-PL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
201052751-01-EW-BL
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Byrn & Son, Inc License info
Verified License
| License # | H3511670000 |
| 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 Byrn & Son, 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 # | 001049 |
| Status | Active |
| State | New York |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of April, 2025. Check the current license status of Byrn & Son, Inc with the New York City Department of Buildings
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, 2022. Check the current license status of Byrn & Son, Inc 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 # | 50196 |
| Status | Active |
| County | Suffolk County |
| Type | Mp N/A |
- When BuildZoom last verified this license, it had an expiration date of May, 2014. Check the current license status of Byrn & Son, Inc 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 # | 43031 |
| Status | Active |
| County | Suffolk County |
| Type | Rp Rp2 - Irrigation |
- When BuildZoom last verified this license, it had an expiration date of May, 2014. Check the current license status of Byrn & Son, 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 # | H35116700 |
| 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 Byrn & Son, 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 # | 000632 |
| Status | Inactive |
| State | New York |
| Type | Plumber |
- 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 Byrn & Son, Inc 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 # | 2624 |
| 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. If this is your business, please update your license status.
Check this license's status for Byrn & Son, Inc at the Town of Hempstead Building Department.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Insured
| Insurer | Harleysville Ins |
Insured
| Workers Comp Provider | New York State Ins Fund |
74
Permits
- Building permit records show that Byrn & Son, Inc has worked on 74 permitted projects.
Byrn & Son, Inc Employees
AG
Allaire, Gerard
BA
Bernard M Allaire
Vice President
GA
Gerard Allaire
Owner
GA
Gerard J Allaire
President