HVAC replacement cost by state

The same heating and cooling system costs $9,350 in Arkansas and $12,850 in Illinois, a spread of 37% across the lower 48. Hawaii and Alaska sit higher still, near $13,500, and there freight is part of the answer.

Everywhere else the gap is labour. A condenser and a furnace cost roughly the same in both states because they ship nationally from the same factories; the two technicians who spend a day installing them do not.

The table below prices one job in every state: a full changeout of a central split system, around 3 tons, on existing ductwork, with the permit included. Nothing else changes between the rows.

How these figures are built

We hold a national rate for the job, then adjust it by state.

The labour adjustment comes from Bureau of Labor Statistics Occupational Employment and Wage Statistics data: each state's mean hourly wage for the construction trades divided by the national mean for the same trades. It is a measured figure.

The material adjustment is smaller and is a model rather than a measurement. There is no free state-level price index for HVAC equipment, so material prices move by a quarter of the labour spread, on the reasoning that regional equipment pricing tracks regional cost of doing business but far more weakly than wages do. Alaska and Hawaii carry an extra freight premium because everything arrives by barge.

We treat half the bill as labour, permits and local overhead, and half as nationally priced equipment. That split is why the state spread here is narrower than it is for a roof: on a roof the crew is most of the cost, and on an HVAC changeout the box is.

Permits move with labour, since they are set by local government whose costs move the same way.

Cost to replace an HVAC system, by state

What the table does not know

Your city, for one. State means hide real spreads: metropolitan Chicago prices above the Illinois figure and southern Illinois below it. If you are in a large metro, read the state number as a floor.

Three things move a quote more than geography does, and none of them are in the table.

Whether the ductwork is reused. Replacing duct runs adds $10 to $35 a linear foot, and a house carries 150 to 350 feet. That single line can move a quote more than moving to another state would.

Furnace efficiency. A 96% AFUE condensing furnace costs $3,000 to $6,000 more than an 80% one, partly for the box and partly because it needs new PVC venting and a condensate drain the old flue cannot provide.

Electrical. A heat pump or a high-capacity system in an older house sometimes needs a service upgrade. That is a separate trade and a separate $1,500 to $4,000.

Where the state actually changes the job

Climate does more than wages here. In the cold half of the country the heating side drives the system choice, and a gas furnace is usually the cheaper answer. In the warm half the cooling side drives it, and a heat pump doing both jobs from one box is often cheaper to install than a furnace and an air conditioner together.

That is a real difference in what gets installed, not just in what it costs, and it is why comparing a Minnesota quote to a Florida one tells you very little.

Frequently asked questions

Why is Arizona not near the top when it needs the most cooling?

Because the multiplier indexes wages, not demand. Arizona is 0.92, below the national line, and a hot state has a deep and competitive HVAC labour pool rather than a scarce one.

There is a second reason the spread here is narrower than it looks. On a system replacement, the equipment is roughly half the price and it is bought at national pricing, so only the labour half moves with the state. A 20% wage difference becomes about a 10% difference in what you pay.

Do these figures include the permit?

Yes. Most jurisdictions require a mechanical permit for a changeout, typically $75 to $350. It should be a line on your quote, and the contractor should be pulling it, not you.

Are federal tax credits reflected here?

No. These are what you pay the contractor. The federal energy efficiency credit can return up to $2,000 on a qualifying heat pump and up to $600 on a qualifying furnace or air conditioner, and many states and utilities add rebates on top. Check those before you sign, not after.

How current are these numbers?

The wage data is refreshed when the BLS publishes it, and the national rates are reviewed each quarter. The date the figures were last set is shown with the cost figure at the top of this page.

My quote is well above the high column. Is it wrong?

Not necessarily. Check the three things above: ductwork, furnace efficiency and electrical. If none of them apply and the quote is still 40% over, get a second one.