HVAC Installation Cost in 2026: Every Job at a Glance
HVAC installation cost depends first on which job it is, so here are the eight most common ones priced the same way: standard efficiency, an average-cost US market, and existing ducts reused unless the row says otherwise. The whole-house figure most people mean by HVAC system installation cost is the furnace and AC row.
| Job | Typical Installed | 2026 Range | Price Yours With |
|---|---|---|---|
| Central AC replacement, 3 tons | $6,000 | $5,300 - $6,700 | Central air installation cost calculator |
| Central AC, first time with new ducts and circuit, 3 tons | $13,500 | $11,900 - $15,100 | Central air installation cost calculator |
| Gas furnace, 80,000 BTU | $4,700 | $4,100 - $5,200 | Furnace replacement cost calculator |
| Electric furnace, 80,000 BTU | $2,900 | $2,600 - $3,200 | Furnace replacement cost calculator |
| Furnace and AC together, 3 tons | $9,600 | $8,400 - $10,700 | HVAC replacement cost calculator |
| Ducted heat pump, 3 tons | $8,400 | $7,400 - $9,400 | HVAC replacement cost calculator |
| Mini split, one zone, 12,000 BTU | $4,000 | $3,500 - $4,500 | Mini split installation cost calculator |
| Mini split, three zones, 3 tons | $10,000 | $8,800 - $11,200 | Mini split installation cost calculator |
The spread between rows is larger than the spread inside any one of them. A first-time central air install costs more than twice a replacement, and almost all of that is ductwork and wiring. Tip: settle which job you are pricing before you compare any two quotes, because a quote for the wrong scope is not a cheaper version of the right one.
Which One Should You Use?
Pick by how much of the system is changing. If you are replacing one thing, use the estimator built for it, because size steps, efficiency labels and the extras that get added differ by equipment type. If two or more are changing together, start with the whole-system tool, since doing them at once is cheaper than doing them separately.
Jump Straight to a Specific Price
If you already know the question, these links go to the exact section that answers it, and each one sits on the page whose calculator prices that job.
- AC replacement cost by size, 2 to 5 tons, with and without duct repairs
- Central air conditioner prices, unit only against installed
- Central air installation labor cost
- Heat pump installation and replacement cost, beside a furnace and AC at each size
- New HVAC system cost by size, 2 to 5 tons
- How to tell if an HVAC replacement quote is fair
- Repair or replace: the $5,000 rule
- AC repair cost by part, capacitor to compressor
- New furnace cost by home size, 1,000 to 3,000 sq ft
- High efficiency furnace cost, 80% against 96% AFUE
- Furnace installation labor cost by region
- Mini split installation cost for 2, 3, 4 and 5 zones
- Labor cost to install a mini split, zone by zone
What Every Quote Should Itemize
Whichever job you are pricing, ask for the same breakdown so two quotes can actually be compared: equipment model numbers, labor, permit, disposal of the old unit, and any ductwork or electrical work as separate lines. Quotes for identical work routinely differ by thousands on scope alone, and the cheapest one is very often the one that has quietly left something out.
Size It Before You Price It
Every number these tools produce depends on getting the capacity right first, and roughly half of installed systems are oversized. Work out what you actually need with the HVAC load calculator for a whole house, or the AC tonnage calculator for a quicker estimate. Paying for capacity you do not need costs you twice: once at installation, and again on every bill afterwards.
Where the Pricing Comes From
All four tools share one model, so a furnace priced here matches the same furnace inside the whole-system estimator. Every base price and multiplier is published in our cost model methodology rather than hidden, including how efficiency tier and region adjust the result.