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New central AC installation costs in Madison, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $168 | $392 | $784 |
Ductless mini-split (single zone) | $2,240 | $5,040 | $8,960 |
Central AC replacement (existing ducts) | $3,920 | $7,280 | $13,440 |
Central AC new install (with ductwork) | $7,840 | $13,440 | $22,400 |
Carrier (residential) | $4,256 | $6,944 | $11,760 |
Trane (residential) | $5,600 | $9,856 | $15,232 |
Lennox (residential) | $3,920 | $7,280 | $13,440 |
Rheem (residential) | $3,584 | $6,160 | $10,080 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
Madison’s climate pushes both cooling and heating to the front of homeowners’ minds: humid summers with highs near 87°F and winters averaging about 25°F mean air conditioning performance is essential alongside a reliable furnace. That seasonal swing drives steady demand for ac-installation Madison services. Seven local contractors serve the area, averaging a 4.7 rating across roughly 475 reviews, and two provide 24/7 support for urgent issues.
Clear cost figures from local topCostItems weren’t provided here, so expect variation based on system size, efficiency ratings, ductwork condition, and installation complexity. Indiana does not maintain a statewide HVAC license, so credentials and permits are handled at the municipal or county level; confirm local licensing, insurance, and any required permits before signing an estimate. Ask contractors for itemized bids that separate equipment, labor, and disposal fees.
Customer highlights were not included in the supplied data, so prospective buyers should prioritize responsive communication, documented warranties, and references from recent installations. Look for installers who perform load calculations, explain efficiency tradeoffs, and demonstrate familiarity with cooling in humid Ohio River Valley summers. Scheduling flexibility, clear timelines, and post-installation follow-up are recurring markers of a professional local installer.