How Much Does Central AC Installation Cost in Missouri?
Missouri pricing is below the national average. Updated for 2026.
Central AC Installation Pricing in Missouri
In Missouri, the average cost for central ac installation is $5,655 per system, which is 13% lower than the national average of $6,500. Most Missouri residents pay between $3,045 and $10,440.
Missouri benefits from a lower cost of living than many states, resulting in more affordable pricing for central ac installation. This makes it one of the more budget-friendly states for this service.
Central air conditioning installation includes a condenser unit, evaporator coil, refrigerant lines, and thermostat. If you don't have existing ductwork, add $3,000-$7,000 for duct installation.
Missouri vs National Average
What Affects Central AC Installation Cost in Missouri?
System size
1.5-2 ton (1,000 sq ft): $3,500-$6,000. 3 ton (1,500 sq ft): $4,500-$8,000. 4-5 ton (2,500+ sq ft): $6,000-$12,000
Efficiency
14 SEER (standard): $3,500-$6,000. 16 SEER (mid-range): $5,000-$8,000. 20+ SEER (high-eff): $7,000-$12,000
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💡 Tips to Save on Central AC Installation in Missouri
- 1.Install in fall/winter off-season for 10-20% savings
- 2.14-16 SEER units offer the best value for most climates
- 3.Federal tax credits cover 30% of high-efficiency systems (up to $2,000)
- 4.Get 3+ quotes — AC installation pricing varies widely
📈 Central AC Installation in Missouri Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $4,804 | — |
| 2021 | $5,006 | +4.2% |
| 2022 | $5,331 | +6.5% |
| 2023 | $5,480 | +2.8% |
| 2024 | $5,655 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Central AC Installation in Missouri
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Frequently Asked Questions
How long does central AC last?
15-20 years with regular maintenance. Systems in hot climates (Florida, Arizona) may last 12-15 years due to higher usage. Annual maintenance ($75-$200) extends lifespan significantly.
Central AC Installation Cost in Other States
Related Cost Guides for Missouri
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