Updated: Nov 23, 2025
Location and Projects
Address
1565 Reydon Dr, Southold, NY, 11791
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Rockfish Custom Builders Construction
Serving homeowners and property owners throughout Southold and the North Fork, Rockfish Custom Builders Inc specializes in custom home construction and remodeling. The company handles a range of residential projects, including new home builds, whole house renovations, kitchen remodels, bath remodels, additions, and historic home restorations. Rockfish Custom Builders provides project management, overseeing every phase from design development to completion, and collaborates closely with architects and designers to achieve tailored results for each client. Their portfolio illustrates experience with waterfront homes and traditional North Fork architecture, with completed projects in Southold, Greenport, and surrounding Suffolk County communities. Rockfish Custom Builders works with modern methods and high-quality materials suited to the North Fork’s unique environmental considerations. The company is known for navigating the region’s permitting and zoning requirements, often working on properties in coastal or historic districts. Founded over a decade ago, Rockfish Custom Builders continues to be active in both renovations and ground-up custom home construction across Long Island’s East End.
Rockfish Custom Builders Inc Services
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Rockfish Custom Builders Inc Contact Information
Address: 1565 Reydon Dr, Southold, NY 11791
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Rockfish Custom Builders Inc Southold
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Rockfish Custom Builders Inc has a BuildZoom score of 105, which places them above 92% of 77,888 contractors in New York.
Activity
|
8 projects
|
2025 |
|
15 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Rockfish Custom Builders Inc has worked on at least
28.0 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
|
13 projects
|
Fences |
Analyzing permits over the last 4 years shows that Rockfish Custom Builders Inc mostly works on
fences
projects.
Pricing
|
8 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $20,000. 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 Rockfish Custom Builders Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Renovation of existing one family residence. work to include non structural demolition relocated windows and new finishes. no change in use egress nor occupancy
Valuation:
$162,500
Permit #:
Q00993713-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reconstruction of single-family house
Valuation:
$250,000
Permit #:
Q00964452-I1-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
First & second floor enlargement of existing one family residence. no change in use egress nor occupancy
Valuation:
$200,000
Permit #:
Q00788277-I1-FO
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation and horizontal enlargement of single-family house
Valuation:
$250,000
Permit #:
Q01028206-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Vertical extension of a 1 story 1 family dwelling into a 2 story 1 family dwelling
Valuation:
$300,000
Permit #:
Q00652604-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior alterations to existing 2 story 1 family dwelling. no change to use egress or occupancy
Valuation:
$159,999
Permit #:
Q00750755-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New storage closet and two toilet facility install on the 2nd floor roof deck accessory use for existing out door deck approved under co #420963808f. there is no change in use egress or occupancy
Valuation:
$20,000
Permit #:
Q00608146-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of existing one-story single-family house and increase of attic headroom
Valuation:
$140,000
Permit #:
Q00879965-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install temporary wood construction fence in association with new building q00964452 and demolition q00964602
Valuation:
N/A
Permit #:
Q00964452-S2-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Vertical enlargement of fire department building
Valuation:
$800,000
Permit #:
Q00766346-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Filing for plywood construction fence in conjunction with enlargement filed under q00788277-i1. no change in use egress nor occupancy
Valuation:
$10,000
Permit #:
Q00930477-I1-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Vertical extension of an existing 1 story 1 family home to a 3 story 2 family home. existing foundation and first floor to remain
Valuation:
$297,780
Permit #:
Q00601999-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Merging apartments 11g and 11d. removing a kitchen and creating a passthrough
Valuation:
$30,000
Permit #:
M01133591-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install temporary wood construction fence in association with renovation q01169499
Valuation:
$3,000
Permit #:
Q01169499-S2-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of two-family house
Valuation:
$100,000
Permit #:
Q01169499-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Proposed one story addition
Valuation:
$180,000
Permit #:
Q00897172-I1-GC-CX
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install temporary wood construction fence in association with renovation and enlargement q01028206
Valuation:
$3,000
Permit #:
Q01028206-S2-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Proposed installation of cold form steel and i beams
Valuation:
$200,000
Permit #:
Q00766346-S2-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Proposed 3 story 1 family new building. plumbing and fence filed as subsequent filings
Valuation:
$1,000
Permit #:
Q00495845-I1-ST
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install temporary wood construction fence in association with alteration q00879965-i1
Valuation:
$2,000
Permit #:
Q00879965-S2-FN
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Rockfish Custom Builders Inc License info
License Not Verified
| License # | H18H4350000 |
| Status | Active |
| County | Nassau County |
| Type | Home Improvement Contractors |
- When BuildZoom last verified this license, it had an expiration date of March, 2026. Check the current license status of Rockfish Custom Builders Inc with the Nassau County Office of Consumer Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | L003384 |
| 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 Rockfish Custom Builders Inc at the Town of Southampton Department of Land Management.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
62
Permits
- Building permit records show that Rockfish Custom Builders Inc has worked on 62 permitted projects.
Rockfish Custom Builders Inc Employees
DH
Douglas Herrmann
Licensee
DH
Douglas W Herrmann
Pres
MG
Matthew Genoski
Secretary
TG
Thomas Genoski
Vice Pres
TG
Thomas W Genoski
V Pres