Updated: Feb 06, 2026
Location and Projects
Address
Dover, DE, 19901
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Diamond Electric Inc
Diamond Electric Inc, Dover, DE holds a Resident Contractor license and 1 other license according to the New Castle County license board.
Their BuildZoom score of 91 ranks in the top 37% of 8,071 Delaware licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diamond Electric Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Diamond Electric Inc Contact Information
Phone Number: (302) 697-3296
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Replacement plumbing inside underground plumbing gas test 9 fixtures: demolish of all existing plumbing piping install new plumbing pipe per new design and installation of new plumbing fixtures. installation of new gas piping. (rev 5/3/19: pipe size change on gas piping from 1 1/2 to 1 also moved 3 gas line serving the 3 prep booths)
Valuation:
N/A
Permit #:
201816483
Status:
final
Fee:
$288
Permit Type:
Replacement
Building Type:
Commercial
New system hvac unit(s) duct work refrigeration: installation of new mini split system in the board room. *(rev.4/16/19 : the original specified equipment size was increased to 24, 000 btu from 18, 000 to better match loads)*
Valuation:
N/A
Permit #:
201903227
Status:
final
Fee:
$90
Permit Type:
New construction
Building Type:
Industrial
Replacement plumbing inside underground plumbing gas test 11 fixtures 1 water heater(s): demolish of selected plumbing fixtures installation of new plumbing fixture and associated piping including natural gas piping
Valuation:
N/A
Permit #:
201814305
Status:
final
Fee:
$221
Permit Type:
Replacement
Building Type:
Exempt commercial
New plumbing inside underground plumbing 4 fixtures 1 water heater(s): install new underground plumbing install new domestic sanitary and storm aboveground. installation of new plumbing fixtures
Valuation:
N/A
Permit #:
201817104
Status:
final
Fee:
$242
Permit Type:
New construction
Building Type:
Exempt commercial
Replacement plumbing inside underground plumbing gas test 12 fixtures: demolish existing plumbing fixtures installation of new pipe ug and aboveground for new restroom. install oil/water separator
Valuation:
N/A
Permit #:
201816538
Status:
final
Fee:
$147
Permit Type:
Replacement
Building Type:
Commercial
New system hvac unit(s) duct work refrigeration furnish and install new split heat pump system and associated piping. furnish and install reconfigured ductwork to existing rtu's
Valuation:
N/A
Permit #:
201908063
Status:
final
Fee:
$410
Permit Type:
New construction
Building Type:
Commercial
Replacement hvac unit(s) duct work refrigeration: demolish of existing hvac system installation of new hvac system to include ductwork and two paint booth heaters
Valuation:
N/A
Permit #:
201816488
Status:
final
Fee:
$391
Permit Type:
Replacement
Building Type:
Commercial
Phase 2: new plumbing 3 fixtures: pipe and install floor sink and hand sink - domestic and sanitary piping
Valuation:
N/A
Permit #:
201815401
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Exempt commercial
Replacement hvac unit(s) refrigeration: demolish of existing heater and installation of new heaters
Valuation:
N/A
Permit #:
201816543
Status:
final
Fee:
$210
Permit Type:
Replacement
Building Type:
Commercial
Building #13 ups system replacement structural notes and details(add beam to reinforce floor under new ups batteries)
Valuation:
N/A
Permit #:
201804107
Status:
final
Fee:
$504
Permit Type:
Tenant fitout
Building Type:
Exempt commercial
Replacement plumbing grease trap: remove and replace grease trap
Valuation:
N/A
Permit #:
201814642
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Exempt commercial
Replacement hvac unit(s): remove and replace existing rooftop unit with new
Valuation:
N/A
Permit #:
201814843
Status:
final
Fee:
$111
Permit Type:
Replacement
Building Type:
Exempt residential
Furnish and install csst flexible gas line to customer supplied heater
Valuation:
N/A
Permit #:
201802608
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
Residential
Replacement plumbing inside underground plumbing gas test 12 fixtures: water heater replacement and renovation to the existing sanitary and domestic water piping system. installation of additional new fixtures. *(rev. 9/4/18: revise gas drawings.)*
Valuation:
N/A
Permit #:
201806134
Status:
final
Fee:
$655
Permit Type:
Replacement
Building Type:
Exempt commercial
New system hvac unit(s) gas test: installation of new mechanical equip- 3 unit heaters 1 ptac 2 exhaust fans 1 louver and install owner existing 4 ductless split
Valuation:
N/A
Permit #:
201802758
Status:
final
Fee:
$205
Permit Type:
New construction
Building Type:
Exempt commercial
Replacement plumbing inside underground plumbing 6 fixtures 1 water heater(s): installation of new plumbing piping and fixtures (including water heater) for tenant fit out of existing building
Valuation:
N/A
Permit #:
201906362
Status:
final
Fee:
$210
Permit Type:
Replacement
Building Type:
Commercial
New plumbing 1 fixtures new plumbing 1 fixtures 1 water service: installation of domestic cold water piping 1 hose bibb and gas piping
Valuation:
N/A
Permit #:
201802760
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Exempt commercial
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Diamond Electric Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Diamond Electric Inc License info
License Not Verified
| License # | 2017606064 |
| Status | Active |
| State | New Castle County |
| Type | Resident Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Diamond Electric Inc with the State of Delaware Department of Finance: Division of Revenue
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1989013686 |
| 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 Electric Inc 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.
91
BuildZoom Score
10
Permits
- Building permit records show that Diamond Electric Inc has worked on 10 permitted projects.