Basic
$4,140 – $9,107 per project
Single-stage condenser at the regional minimum efficiency with matched indoor coil, new pad, disconnect, existing line set flushed

Replace or install a central split AC system (outdoor condenser plus indoor coil, about 2-5 tons) on existing ductwork, equipment and labor.
Central Air Conditioning in Billings, Montana typically costs $4,870 to $10,714 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Billings are 2.0% lower than the national average for central air conditioning.
National average: $5,000 – $11,000 per project
$4,140 – $9,107 per project
Single-stage condenser at the regional minimum efficiency with matched indoor coil, new pad, disconnect, existing line set flushed
$4,870 – $10,714 per project
Higher-efficiency condenser around 15 to 16 SEER2 with matched coil, new pad, disconnect and line set flush
$6,088 – $13,393 per project
Two-stage condenser around 17 to 18 SEER2 with matched coil, new line set, compatible thermostat
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2,160 – $4,752 | job |
| Labor | labor | $1,750 – $3,850 | job |
| Supplies & Other | supplies | $576 – $1,267 | job |
| Equipment & Disposal | equipment | $384 – $845 | job |
BuildX Pro researches and reviews the national price range for Central Air Conditioning, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Nov 2026.
Connect with local central air conditioning contractors in Billings for personalized quotes based on your specific project.