HVAC Replacement Cost Calculator — Coleman's A/C Heating & Appliance Repair

Most full HVAC replacements in Central Mississippi run between about $6,000 and $13,000 installed. The biggest factors are system size (tonnage), system type, efficiency rating, and the condition of your ductwork. Use the calculator above for a personalized ballpark, then call us at (601) 398-2368 for an exact quote.

In the Mississippi climate, a good rule of thumb is about one ton of cooling for every 500–550 square feet. So a 1,500 sq ft home usually needs around a 3-ton system. For an exact size we perform a Manual J load calculation that factors in insulation, windows, ceiling height, and sun exposure — oversizing or undersizing both hurt comfort and efficiency.

Often, yes. Higher-efficiency systems cost more upfront but use less energy, which lowers your monthly bills — especially during our long cooling season. Variable-speed premium systems also run quieter and control humidity better. We'll help you weigh the upfront cost against the long-term savings for your home.

Yes. We offer flexible financing for qualified customers so you can get a comfortable, efficient system now and pay over time. Visit our financing page or ask us about current options when you call.

No — it's a realistic ballpark, not a quote. Your final price depends on an in-home assessment of ductwork, electrical, equipment availability, and any current rebates. The good news: our in-home estimates for replacement systems are free.