HVAC companies in New Castle, DE 19720
13 HVAC companies, with local market data for this ZIP.
General contractors 42HVAC 13Roofing and exteriors 10Electricians 9Painting 6Other construction trades 6Fences and decks 5Excavation and demolition 4Concrete and masonry 4Carpentry, drywall and windows 3Garage doors 3Remodeling 3Flooring and tile 2
Area profitability, HVAC48 / 100Moderate market, crowded field
Typical home value$277,000−0.4% in the past year
New homes permitted, 20251,322New Castle County
Homeowners67.6%23,102 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Advanced Heating TechnologyHVAC contractor · 233 S Dupont Hwy, New Castle(302) 328-1202 · advancedheatingtech.com
Affordable Heating & Air ConditioningHVAC contractor · 1700 Wilmington Rd, New Castle(302) 328-9220 · affordablehvacde.com
Amstel Mechanical ContractorsHVAC contractor · 1183 S Dupont State Route, New Castle(302) 328-6651 · amstelmechanical.net
Beacon Heating & AirHVAC contractor · 23 Parkway Cir, New Castle(302) 323-1688 · beaconheatingandair.com
Burns & McBride Home ComfortHVAC contractor · 18 Boulden Circle, New Castle(302) 272-9349 · burnsandmcbride.com
Family Heating & CoolingHVAC contractor · 11 Hardy Rd, New Castle(302) 229-4716 · fhcde.com
Gold Star ServicesHVAC contractor · 21A Industrial Blvd, New Castle(302) 440-2940 · goldstarcooling.com
Harris Plumbing, Heating, Air & ElectricalHVAC contractor · 77 McCullough Dr Unit #5, New Castle(302) 212-4533 · callharrisnow.com
JEM Comfort CareHVAC contractor · 1697 N Dupont Hwy, New Castle(302) 223-6793 · jemcomfortcare.com
Maichle's Heating and Air ConditioningHVAC contractor · 105 J And M Dr, New Castle(302) 328-4822 · maichleshvac.com
ModernControls IncHVAC contractor · 7 Bellecor Dr, New Castle(302) 325-6800 · moderncontrols.com · 2 drivers, 2 trucks
National HVAC ServiceHVAC contractor · 42 Southgate Blvd, New Castle(302) 323-1776 · nationalhvacservice.com
Seiberlich Trane Energy ServicesHVAC contractor · 66 Southgate Blvd, New Castle(302) 395-0200 · trane.com
HVAC in ZIP 19720 at a glance
Local building angle: New Castle County permitted 1,322 new homes in 2025, including 188 apartment units. 12% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.