What Does HVAC Work Really Cost?
HVAC costs vary dramatically depending on whether you need a simple repair, a component replacement, or a full system install. Here's what homeowners are actually paying.
HVAC Repair Costs by Issue
| Repair Type | Typical Cost |
|---|---|
| Thermostat replacement | $150–$350 |
| AC refrigerant recharge | $200–$500 |
| Blower motor replacement | $400–$800 |
| Capacitor replacement | $150–$400 |
| Evaporator coil replacement | $800–$2,000 |
| Compressor replacement | $1,500–$3,500 |
| Furnace ignitor replacement | $150–$300 |
| Heat exchanger replacement | $1,500–$3,500 |
Full System Replacement Costs
| System Type | Typical Cost (Installed) |
|---|---|
| Central AC only | $3,500–$7,500 |
| Furnace only | $2,500–$6,500 |
| AC + Furnace combo | $5,000–$12,000 |
| Heat pump system | $4,500–$10,000 |
| Ductless mini-split (single zone) | $2,000–$5,000 |
| Ductless mini-split (multi-zone) | $5,000–$15,000 |
The Repair vs. Replace Decision
Use the "50% Rule": if a repair costs more than 50% of a new system and your unit is over 10 years old, replace it. Also replace if:
- Your system uses R-22 refrigerant (phased out—recharges cost $100–$200/lb)
- Energy bills are climbing despite maintenance
- You're calling for repairs more than twice per year
- The system is 15+ years old
What Drives HVAC Costs Up
- System size: Larger homes need larger systems (measured in tons; 2–5 tons is typical)
- Efficiency rating: High-SEER units (18–25 SEER) cost more upfront but save 30–50% on energy
- Ductwork: If existing ducts need repair or replacement, add $2,000–$5,000
- Permits and inspections: Required in most areas ($100–$500)
- Electrical upgrades: Older homes may need panel or wiring upgrades for modern systems
How to Save on HVAC Costs
- Schedule work in spring or fall — off-season rates can save 10–20%
- Get three quotes from NATE-certified technicians
- Ask about rebates — utility companies and manufacturers often offer $500–$2,000 in rebates for high-efficiency systems
- Sign up for a maintenance plan — $150–$300/year prevents expensive breakdowns
- Don't skip the maintenance — a well-maintained system lasts 15–20 years vs. 10–12 for a neglected one
Bottom Line
Most HVAC repairs run $200–$1,000. If you're facing a repair over $2,000 on a system that's 12+ years old, it's usually smarter to invest in a new system with modern efficiency and a fresh warranty.