Updated: Apr 26, 2026
Location and Projects
Address
5030 North Tupelo Turn, Wilmington, DE, 19808
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David Diehl HVAC/Mechanical Contractor
David Diehl, 5030 N Tupelo Turn, Wilmington, DE (Employee: David C. Diehl) holds a Hvacr Restricted license and 1 other license according to the Delaware license board.
Their BuildZoom score of 97 ranks in the top 18% of 8,071 Delaware licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring David Diehl, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
David Diehl Contact Information
Address: 5030 North Tupelo Turn, Wilmington, DE 19808
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Replacement hvac unit(s) work order to replace existing gas furnace air conditioning condenser and related evaporator coil
Valuation:
N/A
Permit #:
202513327
Status:
final
Fee:
$69
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) gas test new furnace oil to gas conversion. includes gas furnace evaporator coil and 1"x20 steel pipe gas main; new meter to existing furnace location
Valuation:
N/A
Permit #:
202201636
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing air handler and air conditioning with new air handler and heat pump
Valuation:
N/A
Permit #:
202214777
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing gas furnace air conditioning condensing unit and evaporator coil
Valuation:
N/A
Permit #:
202215961
Status:
final
Fee:
$74
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) replace existing air conditioning condensing unit with new heat pump unit and related indoor coil
Valuation:
N/A
Permit #:
202204498
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing air conditioning condensing unit and related indoor evaporator coil
Valuation:
N/A
Permit #:
202308636
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related indoor air handler
Valuation:
N/A
Permit #:
202400405
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump unit and related indoor coil
Valuation:
N/A
Permit #:
202204218
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related air handler
Valuation:
N/A
Permit #:
202204945
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing air conditioning condensing unit and related evaporator coil
Valuation:
N/A
Permit #:
202111172
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump unit and related air handler
Valuation:
N/A
Permit #:
202311300
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related air handler
Valuation:
N/A
Permit #:
202117798
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) replace existing 75 gal power vent natural gas water heater
Valuation:
N/A
Permit #:
202110582
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related air handler
Valuation:
N/A
Permit #:
202106707
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related air handler
Valuation:
N/A
Permit #:
202103887
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) work order to replace existing 80 gal electric water heater
Valuation:
N/A
Permit #:
202103844
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related air handler
Valuation:
N/A
Permit #:
202101097
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) replace existing gas furnace air conditioning condensing unit and related evaporator coil
Valuation:
N/A
Permit #:
202012907
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing natural gas furnace
Valuation:
N/A
Permit #:
202101100
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) work order to replace existing heat pump and related air handler
Valuation:
N/A
Permit #:
202010259
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
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Verified License
BuildZoom confirmed this contractor's license
David Diehl License info
Verified License
| License # | HL-0000033 |
| Status | Active |
| State | Delaware |
| Type | Hvacr Restricted |
| Business Type | Individual |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for David Diehl at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | T1-0004053 |
| Status | Inactive |
| State | Delaware |
| Type | Electrician |
| Business Type | Individual |
- 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 David Diehl at the State of Delaware.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
34
Permits
- Building permit records show that David Diehl has worked on 34 permitted projects.
David Diehl Employees
DD
David C. Diehl
Applicant
DD
David Diehl
Applicant