HVAC companies in Hartsville, SC 29550

6 HVAC companies, with local market data for this ZIP.

Area profitability, HVAC41 / 100Moderate market, crowded field
Typical home value$185,000+10.1% in the past year
New homes permitted, 2025205Darlington County
Homeowners72.1%11,746 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

Gainey's Heating & Cooling IncHVAC contractor · 706 Lakeview Blvd, Hartsville(843) 383-6509 · gaineyhc.com
Gateway Supply Co.HVAC contractor · 107 Westfields St, Hartsville(843) 383-4574 · gatewaysupply.net
Johnson's Refrigeration & Air Conditioning, Inc.HVAC contractor · 2253 N 5th St, Hartsville(843) 332-1213 · calljri.com
Johnson's Refrigeration IncHVAC contractor · 2501 Bethlehem Rd, Hartsville(843) 332-1213 · calljri.com
MKA Mechanical IncHVAC contractor · 624 E Carolina Ave, Hartsville(843) 332-2951 · mkamechanical.com
Kentco Heating & CoolingHVAC contractor · 612 W Bobo Newsom Hwy, Hartsville(843) 332-1321
Macarthur's Heating and CoolingHVAC contractor · 1032 Nandina, Hartsville(843) 287-4834

HVAC in ZIP 29550 at a glance

Local building angle: Darlington County permitted 205 new homes in 2025, including 6 apartment units. 22% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.