How long does an HVAC install take?

Most full replacements (furnace + AC + new lines) are a 1-2 day job. Adding ductwork or rerouting can add a week.

How long does an HVAC system last?

Furnaces: 15-25 years. AC condensers: 12-18. Heat pumps: 12-18. Annual service extends both ends of the range.

HVAC cost in the U.S.

Full HVAC replacements cluster in the range below. Repairs are typically a fraction of replacement; if your system is 12+ years old, it's worth getting both numbers.

Typical national range

$8,000

typical project

Most projects fall between $4,000 and $16,000.

Industry estimate from public-source pricing data. Local prices vary widely — see your metro area below.

Factors that move the price

System type
Furnace + AC split: most common. Heat pump: usually cheaper to operate, similar install cost. Mini-splits: per-zone pricing, great for additions or homes without ducts.
Tonnage / capacity
Sized to the home (Manual J load calc). Bigger isn't better — oversized AC short-cycles and won't dehumidify properly.
Efficiency tier (SEER2 / AFUE)
Base-tier efficiency is the cheapest install; high-efficiency (16+ SEER2, 95%+ AFUE) costs more upfront but pays back via utility bills and rebates.
Ductwork
If existing ducts are undersized, leaky, or absent, expect a ductwork line item — sometimes more than the equipment itself.
Rebates + credits
Federal IRA tax credits, state rebates, and utility rebates can return $1,000-$5,000 on a high-efficiency install. Ask the contractor to itemize.

Browse by metro area

Prices in your area can run noticeably above or below the national number depending on labor costs, permitting, and material availability. Pick your metro for a localized range.

Get real quotes for your project

These ranges are useful for ballparking, but the only way to know what your specific project will cost is to get quotes from local contractors. Submit your project once and let them come to you.

Related guides

Common questions

How long does an HVAC install take?: Most full replacements (furnace + AC + new lines) are a 1-2 day job. Adding ductwork or rerouting can add a week.
How long does an HVAC system last?: Furnaces: 15-25 years. AC condensers: 12-18. Heat pumps: 12-18. Annual service extends both ends of the range.