Updated: Feb 06, 2026
Location and Projects
Address
924 S HEALD ST, Wilmington, DE, 19804
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Diamond Materials Plumber
Diamond Materials LLC, 924 S Heald St, Wilmington, DE holds a Resident Contractor license and 1 other license according to the New Castle County license board.
Their BuildZoom score of 98 ranks in the top 16% of 8,071 Delaware licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diamond Materials LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Diamond Materials LLC Services
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Diamond Materials LLC Contact Information
Phone Number: (302) 658-6524
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Address: 924 S HEALD ST, Wilmington, DE 19804
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Building Permits by Diamond Materials LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of grease traps and installation of laterals that stop at the curb *(rev.10/18/2022: revised plans to show change to load bearing grease trap.)*
Valuation:
N/A
Permit #:
202212217
Status:
final
Fee:
$1,188
Permit Type:
N/A
Building Type:
Commercial
Demolition water tower & shed
Valuation:
N/A
Permit #:
202216626
Status:
final
Fee:
$260
Permit Type:
N/A
Building Type:
Industrial
Demolish single family dwelling and accessory structure
Valuation:
N/A
Permit #:
202008261
Status:
final
Fee:
$630
Permit Type:
N/A
Building Type:
Residential
Installation of a 1, 000 gallon grease trap
Valuation:
N/A
Permit #:
202409380
Status:
final
Fee:
$111
Permit Type:
N/A
Building Type:
Industrial
Retaining walls
Valuation:
N/A
Permit #:
202507288
Status:
issued
Fee:
$9,503
Permit Type:
Tenant fitout
Building Type:
Commercial
F & i all proposed & revised 6-inch/4-inch sanitary & associated 1500 gal. grease traps. install & extend water line into building
Valuation:
N/A
Permit #:
201800111
Status:
final
Fee:
$79
Permit Type:
N/A
Building Type:
Commercial
Furnish and install all proposed and revised 6-inch/4-inch laterals and lea grease trap. relocate abandon mh base filled with flowable fill. install new revised water line - 5 into building
Valuation:
N/A
Permit #:
201709260
Status:
final
Fee:
$179
Permit Type:
N/A
Building Type:
Commercial
Furnish and install all proposed and revised 6 sanitary laterals and (2) ea greast traps. install new proposed water line - all 5 into building
Valuation:
N/A
Permit #:
201709265
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Commercial
Furnish and install 6 sanitary lateral and (1) each 1500 gallon grease trap. install proposed water line
Valuation:
N/A
Permit #:
201710803
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Commercial
Extend water service, sewer service into building 10 install 3 grease traps 1-1500 gallon 2- 1000 gallon
Valuation:
N/A
Permit #:
201700473
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
Commercial
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604494
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604493
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604492
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604491
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604490
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604489
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604488
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604487
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604486
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Outside plumbing: install water and sanitary services to building (includes excavation pipe laying and providing a tie in point for plumbing contractor)
Valuation:
N/A
Permit #:
201604485
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
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Verified License
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Diamond Materials LLC License info
Verified License
| License # | 1996105266 |
| Status | Active |
| State | New Castle County |
| Type | Resident Contractor |
| Date Issued | 01-01-2026 |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Diamond Materials LLC at the State of Delaware Department of Finance: Division of Revenue.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1996105266 |
| Status | Inactive |
| State | Delaware |
- According to the State of Delaware, 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 Diamond Materials LLC at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
15
Permits
- Building permit records show that Diamond Materials LLC has worked on 15 permitted projects.