ComfortCostGuide

State cost guide

Mississippi: HVAC Replacement Cost Calculator

Replacing an HVAC system in Mississippi typically runs $4,000 to $7,500 for a central air conditioner and $6,000 to $12,000 for a heat pump, installed. A matched AC and gas furnace system falls between $7,500 and $13,000. Labor here runs about 18% below the national average, with HVAC technicians earning around $25.49 an hour, which keeps installed prices lower than in much of the country.

Worked example

Take a 1,900 sq ft single-story home outside Hattiesburg with a 16-year-old split system: the condenser is failing and the gas furnace in the attic is the same age. Because both components share an air handler cabinet and coil, most contractors will quote the pair together, putting the job in the $7,500 to $13,000 range for AC plus furnace. With straightforward attic access, reusable ductwork, and a mid-efficiency matched system, this home would land near the middle, around $9,500 to $10,500. Adding significant duct repair, a high-SEER2 unit, or a difficult attic pull would push it toward the $13,000 end.

Frequently asked questions

Is a heat pump worth it in Mississippi instead of AC plus a gas furnace?

Mississippi sits in climate zone 3, where winters are mild enough that a heat pump can handle most heating hours without much backup heat. A heat pump runs $6,000 to $12,000 installed versus $7,500 to $13,000 for a separate AC and gas furnace, so it is often the cheaper equipment path as well. If your home already has natural gas service and a usable gas line, the dual-fuel comparison is worth asking your contractor to price both ways.

How much does it cost to replace just the air conditioner in Mississippi?

A central AC replacement in Mississippi typically costs $4,000 to $7,500 installed. The low end applies to a straightforward swap of a base-efficiency unit with existing ductwork and an accessible outdoor pad. Higher-SEER2 equipment, a new indoor coil, or line-set replacement moves the quote toward the top of that range.

Why are HVAC installation prices lower in Mississippi than the national average?

Labor is the main reason. Mississippi's labor index is 0.82, meaning installation labor costs about 18% less than the US average, and HVAC technicians in the state earn around $25.49 per hour. Equipment prices are fairly consistent nationwide, so most of the savings you see here comes from the install side of the bill.

What would ductless mini splits cost for a Mississippi home?

Ductless mini split systems in Mississippi run $3,500 to $10,000 installed. A single-zone unit for a sunroom, garage conversion, or added bedroom sits near the bottom of that range, while a multi-zone system covering several rooms approaches $10,000. Mini splits are often the practical choice for older Mississippi homes with no existing ductwork or with additions the main system never reached.

Related cost guides