Updated: Jul 06, 2026
Location and Projects
Address
Claymont, DE, 19703
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Old School Heating & Cooling LLC
Old School Heating & Cooling LLC, Claymont, DE holds a Resident Contractor license according to the New Castle County license board.
Their BuildZoom score of 101 ranks in the top 12% of 8,071 Delaware licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Old School Heating & Cooling LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Old School Heating & Cooling LLC Services
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Old School Heating & Cooling LLC Contact Information
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Building Permits by Old School Heating & Cooling LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replacement hvac unit(s) 1 water heater(s) replacement of 80 000 btu 96% natural gas furnace with 3.5 ton 14.3 seer2 air conditioner and coil with 40 gallon natural draft water heater
Valuation:
N/A
Permit #:
202501908
Status:
final
Fee:
$74
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) 1 water heater(s) replacement of 80 000 btu 96% gas furnace with 4 ton 15.2 seer air conditioner and coil with a 75 gallon natural draft water heater
Valuation:
N/A
Permit #:
202501907
Status:
final
Fee:
$90
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) replacement of water heater with 40 gallon bradford white natural gas natural vent. adding a expansion tank safety pan and 4 inch chimney liner
Valuation:
N/A
Permit #:
202501941
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) replacement of 40 gallon natural gas natural vent water heater with expansion tank and safety pan
Valuation:
N/A
Permit #:
202501909
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) 1 water heater(s) installation of 80, 000 btu 2 stage 96% tempstar gas furnace with 3 ton 15 seer air conditioner and matching 3 ton indoor coil with 4 inch chimney liner for existing water heater
Valuation:
N/A
Permit #:
202304281
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
New system hvac unit(s) duct work hydronic(boiler/radiant) 3 ton hp and ah. adding duct to new addition and existing home. adding baseboard hydronic heat to new addition. tapping off existing boiler piping
Valuation:
N/A
Permit #:
202113227
Status:
final
Fee:
$74
Permit Type:
New construction
Building Type:
Residential
New system duct work gas test 1 water heater(s) oil to gas with full duct. installation of 70, 000 btu 2 stage 80% tempstar gas furnace with 2 ton 15 seer air conditioner with matching 2 ton coil in attic area with full duct and gas line. removal of oil boiler and tank. installing 50 gallon electric wh
Valuation:
N/A
Permit #:
202304282
Status:
final
Fee:
$116
Permit Type:
New construction
Building Type:
Residential
Replacement hvac unit(s) installation of 80, 000 btu single stage 95% high efficiency gas furnace w 2 5 ton 14 seer single stage air conditioner. includes new refrigerant lines condenser pad electrical disconnect and whip venting of 2inch pvc intake/exhaust pipe, chimney line
Valuation:
N/A
Permit #:
202214448
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) gas test 1 water heater(s) oil to gas furnace. 60, 000 btu tempstar 95% gas furnace. existing 3/4 gas line and meter supplying 40 gallon water heater at 40, 000 btu
Valuation:
N/A
Permit #:
202303801
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) 1 water heater(s) installation of 60, 000 btu 2 stage 96% tempstar gas furnace with 2 ton 15 seer air conditioner with 2 ton indoor coil and humidifier
Valuation:
N/A
Permit #:
202304283
Status:
final
Fee:
$69
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) 1 water heater(s) installation of 2 stage 80% 90, 000 btu tempstar gas furnace with 3 ton 15 seer air conditioner and indoor coil
Valuation:
N/A
Permit #:
202305283
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) water heater repacment with 50 gallon electric water heater with expansion tank and safety pan
Valuation:
N/A
Permit #:
202303623
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
New system duct work installation of 3 ton 14.3 seer2 heat pump and air handler with 10 kw back up heat
Valuation:
N/A
Permit #:
202511648
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) installation of 96% 100, 000 btu gas furnace with 4 ton 15.3 seer2 air conditioner with matching indoor coil
Valuation:
N/A
Permit #:
202404265
Status:
final
Fee:
$69
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) replacement of 40 gallon natural draft natural gas water heater with expansion tank and safety pan
Valuation:
N/A
Permit #:
202415990
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) 96% goodman 80, 000 btu 2 stage gas furnace with 3.5 ton 15.2 seer2 air conditioner 3.5 ton indoor coil
Valuation:
N/A
Permit #:
202407127
Status:
final
Fee:
$79
Permit Type:
Replacement
Building Type:
Residential
Replacement 1 water heater(s) replacement of 50 gallon natural gas natural vent water heater with expansion tank and safety pan
Valuation:
N/A
Permit #:
202414610
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hydronic(boiler/radiant) 1 water heater(s) installation of a 50 gallon power vent water heater and 110, 000 btu 90% + high efficient boiler
Valuation:
N/A
Permit #:
202116080
Status:
final
Fee:
$165
Permit Type:
Replacement
Building Type:
Residential
New system hvac unit(s) duct work removal of oil fired boiler. retro- installation of new duct work on the first and second floor. first floor system with be a 14 seer 2 ton 95% 40, 000 btu gas furnace. 2nd floor attic system will be a 2 ton hp w 5 kw emergency heat
Valuation:
N/A
Permit #:
201913950
Status:
final
Fee:
$65
Permit Type:
Replacement
Building Type:
Residential
Replacement hvac unit(s) 96% tempstar 100, 000 btu single stage gas furnace with 4 ton 14.3 seer2 air conditioner
Valuation:
N/A
Permit #:
202411472
Status:
final
Fee:
$69
Permit Type:
Replacement
Building Type:
Residential
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Verified License
BuildZoom confirmed this contractor's license
Old School Heating & Cooling LLC License info
Verified License
| License # | 2017601684 |
| Status | Active |
| State | New Castle County |
| Type | Resident Contractor |
| Date Issued | 01-01-2026 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Old School Heating & Cooling 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.
101
BuildZoom Score
69
Permits
- Building permit records show that Old School Heating & Cooling LLC has worked on 69 permitted projects.