HVAC companies in Millsboro, DE 19966
7 HVAC companies, with local market data for this ZIP.
General contractors 33Roofing and exteriors 9HVAC 7Electricians 6Concrete and masonry 3Remodeling 2Painting 2Excavation and demolition 2Fences and decks 1Garage doors 1
Area profitability, HVAC60 / 100Strong market, crowded field
Typical home value$398,000−1.1% in the past year
New homes permitted, 20253,885Sussex County
Homeowners82.2%15,130 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
After Hours Heating and AirHVAC contractor · 24436 Hollyville Rd, Millsboro(302) 945-3310 · afterhoursheatingandair.com
County HVAC Services, IncHVAC contractor · 410 Old Landng Rd, Millsboro(302) 373-6106 · countyhvac.com
First Class Heating & Air ConditioningHVAC contractor · 28418 Dupont Blvd, Millsboro(302) 934-8900 · firstclasshvac.com · 4 drivers, 1 truck
M.L. Building TechnologiesHVAC contractor · 32499 Mariners Way, Millsboro(302) 260-4228 · mlbuildingtechnologies.com
Mike's HVAC LLCHVAC contractor · 24750 Mallard Ln, Millsboro(302) 237-9051 · mikeshvacllcde.com
Schell Brothers at Peninsula LakesHVAC contractor · 30965 Fowlers Path, Millsboro(302) 278-0915 · schellbrothers.com
Sussex heating and airHVAC contractor · 32369 Long Neck Rd, Millsboro(302) 945-1055 · sussexheating.online
HVAC in ZIP 19966 at a glance
Local building angle: Sussex County permitted 3,885 new homes in 2025, including 493 apartment units. 58% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.