HVAC · SOC 49-9021

Central AC Replacement cost

HVAC work is materials-heavy on big box swaps and labor-shaped on controls and service calls. For Central AC Replacement we use mid hours of 12 and materials around $4,500, then apply the same 2.0× / 2.25× / 2.5× labor markup schedule as every other Fairange job.

AC replacement — that’s the everyday name. On Fairange it’s a published hours band (8/12/16) plus a materials band, run through BLS OEWS May 2025 wages for Heating, Air Conditioning, and Refrigeration Mechanics and Installers (SOC 49-9021).

Last updated from data: BLS OEWS May 2025 · PPI construction materials 2026-09

What this estimate can’t tell you. Roof pitch, an old house or code upgrades, tough access, permits, emergency or after-hours calls, and brand tier can push a real quote outside this range.
Hours (low / mid / high)
8 / 12 / 16
Materials band
$3,200 – $6,500
U.S. mid (before ZIP)
$5,341

typical 2.5–3.5 ton central system. National OEWS mean wage used on this page: $31.14/hr (SOC 49-9021).

How the national mid is built

Before you enter a ZIP we use the U.S. OEWS mean wage for Heating, Air Conditioning, and Refrigeration Mechanics and Installers (SOC 49-9021): $31.14/hr (BLS OEWS May 2025). Mid estimate ≈ 12 hours × $31.14 × 2.25× markup + materials mid $4,500 (with a small regional materials factor). Low uses p10 wages × 2.0×; high uses p90 × 2.5×. National planning band: $3,508 – $5,341 – $8,331.

Full algebra: methodology. Markup schedule is Fairange’s published assumption, not a BLS figure.

Materials band

Published materials low / mid / high: $3,200 / $4,500 / $6,500 (typical 2.5–3.5 ton central system). Baselines are Fairange editorial figures tied to public retail when we have a SKU basket; full source notes live in DATA_SOURCES and the methodology page. We dampen materials with a regional factor (about 0.88–1.18) so wages — not a fake local parts market — do most of the geography.

Before you buy an AC system

Sources: Energy.gov, ENERGY STAR, IRS, DSIRE. Fairange does not sell equipment or book contractors.

What usually moves the number

What’s in the planning band

Labor to remove/set equipment or controls in a like-for-like swap, basic startup, and the materials band above.

Ask about before you sign

Run this job on your ZIP HVAC trade hub

Related jobs: Thermostat Installation (programmable / smart) · HVAC Tune-Up (seasonal service).

Also: calculator · methodology · city guides · metro ranking report · all job guides · DATA_SOURCES.

Central AC Replacement FAQ

How much does central ac replacement cost?

National mid planning estimate is about $5,341 before you enter a ZIP — labor from BLS OEWS May 2025 Heating, Air Conditioning, and Refrigeration Mechanics and Installers (SOC 49-9021, national mean $31.14/hr) × published hours, plus materials. Local OEWS wages move the band once you type a ZIP.

What hours, materials, and markup do you assume?

Hours 8 / 12 / 16. Materials band $3,200 / $4,500 / $6,500 (typical 2.5–3.5 ton central system), documented in DATA_SOURCES / methodology — not lead-gen marketplace price tables. Labor markup 2.0× / 2.25× / 2.5× (Fairange methodology).

Is this a bid?

No. It’s an educational planning range. Collect at least three written scopes from licensed pros and compare exclusions — permits, haul-away, patching, and code upgrades.

Any rebates or tax credits?

High-efficiency heat pumps and qualifying central AC may be eligible for the federal Energy Efficient Home Improvement Credit (IRC §25C) when criteria are met—confirm current IRS rules and ENERGY STAR / CEE tier requirements before relying on a credit amount. Many utilities also offer local rebates; search DSIRE (dsireusa.org) by state.

Where does this job cost the most?

See our metro ranking built on the same job assumptions: /reports/ac-replacement-cost-by-metro/ (OEWS local wages, same hours/materials/markup).

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