Updated: Jun 08, 2026
Location and Projects
Address
23 PLATT ST, Norwalk, CT, 06850
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Greyrock Companies Construction
Greyrock Companies, 23 Platt St, Norwalk, CT (Employee: Jerry Effren) holds a Home Improvement Contractor license and 3 other licenses according to the Connecticut license board.
Their BuildZoom score of 93 ranks in the top 27% of 12,093 Connecticut licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Greyrock Companies, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Greyrock Companies Services
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Greyrock Companies Contact Information
Phone Number: (203) 853-1600
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Address: 23 PLATT ST, Norwalk, CT 06850
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Construct single family dwelling aka: 1847 newfiield ave see 1857 newfield ave for gis location is subdivided lot
Valuation:
$793,000
Permit #:
B-14-29
Status:
complete
Fee:
$9,797
Permit Type:
New Construction ...
Building Type:
Single Family
Single family house w/garage #14 (revision 7/23/02 finish basement w/bath & wet bar
Valuation:
$367,960
Permit #:
B-2002-0460
Status:
complete
Fee:
$4,104
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage - house #11 (revision 7/22/03 finish basement)
Valuation:
$367,960
Permit #:
B-2002-0459
Status:
complete
Fee:
$4,013
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage - house #10 (revision 3/28/03 finish basement)
Valuation:
$367,960
Permit #:
B-2002-0458
Status:
complete
Fee:
$4,013
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage house #5 (revision 2/28/03 finish basement)
Valuation:
$367,960
Permit #:
B-2002-0455
Status:
complete
Fee:
$4,033
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage - house #4
Valuation:
$367,960
Permit #:
B-2002-0457
Status:
complete
Fee:
$3,738
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house #13 with garage & deck
Valuation:
$367,960
Permit #:
B-2002-0447
Status:
complete
Fee:
$3,738
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage house #12
Valuation:
$367,960
Permit #:
B-2002-0461
Status:
complete
Fee:
$3,738
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage house #3
Valuation:
$367,960
Permit #:
B-2002-0454
Status:
complete
Fee:
$3,738
Permit Type:
101 one-family ho...
Building Type:
N/A
New single family house w/garage house#2
Valuation:
$367,960
Permit #:
B-2002-0453
Status:
complete
Fee:
$4,098
Permit Type:
101 one-family ho...
Building Type:
N/A
Demo-kennel & rear building
Valuation:
$10,000
Permit #:
B-2000-1064
Status:
issued
Fee:
$100
Permit Type:
Historical Buildi...
Building Type:
N/A
Demo-1 family house
Valuation:
$5,000
Permit #:
B-2000-1065
Status:
issued
Fee:
$50
Permit Type:
Historical Buildi...
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Greyrock Companies License info
Verified License
| License # | HIC.0665744 |
| Status | Active |
| State | Connecticut |
| Type | Home Improvement Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Greyrock Companies at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | NHC.0013505 |
| Status | Active |
| State | Connecticut |
| Type | New Home Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Greyrock Companies at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HIC.0649301 |
| Status | Inactive |
| State | Connecticut |
| Type | Home Improvement Contractor |
- According to the Connecticut Department of Consumer Protection, 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 Greyrock Companies at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NHC.0010062 |
| Status | Inactive |
| State | Connecticut |
| Type | New Home Contractor |
- According to the Connecticut Department of Consumer Protection, 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 Greyrock Companies at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Greyrock Companies Employees
JE
Jerry Effren