Updated: Feb 06, 2026
Location and Projects
Address
Wilmington, DE, 19805
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Calhum Mechanical
Calhum Mechanical, Wilmington, DE holds a Resident Contractor license according to the New Castle County license board.
Their BuildZoom score of 103 ranks in the top 10% of 8,071 Delaware licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Calhum Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Calhum Mechanical Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
New plumbing inside underground plumbing 4 fixtures install new rough and final plumbing for new basement bathroom and wet bar including one (1) shower unit one (1) toilet one (1) lavatory sink and one (1) wet bar
Valuation:
N/A
Permit #:
202512556
Status:
issued
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing 2 fixtures 1 water heater(s) install new rough and final plumbing for new guard shack including new toilet and lavatory sink
Valuation:
N/A
Permit #:
202501454
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Industrial
New plumbing inside underground plumbing 7 fixtures install new rough and final plumbing to existing dwelling for new master and first floor bathroom
Valuation:
N/A
Permit #:
202501975
Status:
issued
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing 29 fixtures 1 water heater(s): install new rough and final plumbing for new restaurant *(rev.4/3/2023: gas drawing to accommodate existing county approved gas plans which only show gas riser diagram. new gas piping shows piping and routing to gas equipment. this plan has not been reveiewed and needs to be stamped by county. there is no added or... see more
Valuation:
N/A
Permit #:
202204194
Status:
final
Fee:
$145
Permit Type:
New construction
Building Type:
Apartment
New plumbing 7 fixtures 2 water heater(s) install new rough and final plumbing including 2- new ada bathrooms 1- break room sink 2- mop sinks with faucets and 2- water heaters *(rev. 9/9/2022:revision to include installation of exterior ejector pump to existing 4 lateral.)*
Valuation:
N/A
Permit #:
202205938
Status:
final
Fee:
$140
Permit Type:
New construction
Building Type:
Industrial
New plumbing inside underground plumbing 12 fixtures: install new rough and final plumbing per plan for complete renovation of space. *(rev.1/13/22: addition outside plumbing and attach to permit #202104895)* *(rev.5/12/2022: include gas piping installation and testing.)*
Valuation:
N/A
Permit #:
202113184
Status:
final
Fee:
$215
Permit Type:
New construction
Building Type:
Exempt commercial
New plumbing 3 fixtures install new rough and final plumbing for one new basement bathroom. including one (1) shower one (1) toilet and one (1) sink
Valuation:
N/A
Permit #:
202508156
Status:
final
Fee:
$365
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing gas test 10 fixtures 1 water heater(s) install new rough and final plumbing for new one (1) new break room sink one (1) hi lo water cooler one (1) gang bathroom and two (2) ada single use bathrooms
Valuation:
N/A
Permit #:
202215894
Status:
final
Fee:
$120
Permit Type:
New construction
Building Type:
Commercial
New plumbing inside underground plumbing 3 fixtures install new rough and final plumbing for one (1) new additional bathroom including one (1) toilet one (1) lavatory sink and one (1) tub. *(rev.05/07/2024: please attach to permit# 202316604.)*
Valuation:
N/A
Permit #:
202404422
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing 3 fixtures install new rough and final plumbing for new basement bathroom including one (1) shower one (1) sink and one (1) toilet
Valuation:
N/A
Permit #:
202401382
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing 5 fixtures install new trough and final plumbing for new addition to existing dwelling including new kitchen and mud room
Valuation:
N/A
Permit #:
202414264
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing 3 fixtures install new rough and final plumbing for new basement including one (1) toilet one (1) sink and one (1) shower
Valuation:
N/A
Permit #:
202401383
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing 3 fixtures install new rough and final plumbing for new basement bathroom including toilet shower and sink
Valuation:
N/A
Permit #:
202508169
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Residential
New plumbing inside underground plumbing 6 fixtures 1 water heater(s) install new underground rough and final plumbing for new coffee shop
Valuation:
N/A
Permit #:
202213803
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Commercial
New plumbing inside underground plumbing 26 fixtures 6 water heater(s) install new rough and final plumbing for floors 1-6 for new tenant fit out
Valuation:
N/A
Permit #:
202416108
Status:
final
Fee:
$79
Permit Type:
New construction
Building Type:
Commercial
New plumbing inside underground plumbing 3 fixtures install new rough and final plumbing for new triple bowl sink hand washing sink & ice maker
Valuation:
N/A
Permit #:
202411498
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Commercial
New plumbing inside underground plumbing gas test 18 fixtures 2 water heater(s) install new rough and final plumbing for new cold storage facility *(rev.10/17/2024: to include on existing application under permit 202410032 building sewer to building & water service to building.)* *(rev. 10/24/2024 changes to gas piping drawing. deletion of gas piping to one (1) remote terminal unit in... see more
Valuation:
N/A
Permit #:
202410032
Status:
final
Fee:
$270
Permit Type:
New construction
Building Type:
Industrial
Replacement plumbing replace and or repair sewer main
Valuation:
N/A
Permit #:
202504445
Status:
final
Fee:
$365
Permit Type:
Replacement
Building Type:
Residential
New plumbing 1 fixtures install new hi-lo water coolers
Valuation:
N/A
Permit #:
202502902
Status:
final
Fee:
$65
Permit Type:
New construction
Building Type:
Commercial
New plumbing inside underground plumbing 5 fixtures 1 water heater(s) install new rough and final plumbing for two (2) new ada single use bathrooms and one (1) washer box
Valuation:
N/A
Permit #:
202309178
Status:
final
Fee:
$74
Permit Type:
New construction
Building Type:
Commercial
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Verified License
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Calhum Mechanical License info
Verified License
| License # | 2012602387 |
| 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 Calhum Mechanical 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.
103
BuildZoom Score
152
Permits
- Building permit records show that Calhum Mechanical has worked on 152 permitted projects.