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HVAC cost guides: repair and replacement prices

HVAC cost comes down to four things: the part or equipment, the labor to install it, refrigerant if the sealed system is opened, and how hard the unit is to reach. Prices also move with your region and the season. The guides below explain each repair and replacement job, what a fair quote includes, and when a repair stops making sense.

Updated November 2026 · General guidance, not an on-site diagnosis

What you are paying for

Every HVAC bill is built from the same pieces.

  • The diagnostic visit. A technician has to find the fault before quoting the fix. See the guide to service call and diagnostic fees.
  • The part or equipment. A capacitor is a small part. A compressor, coil or heat exchanger is a major one. A full system is the largest purchase.
  • Labor. Some parts swap in minutes. Others mean opening the sealed refrigerant system or taking the furnace apart.
  • Refrigerant. Any repair that opens the refrigerant circuit adds recovery, recharge and leak testing. Older refrigerants cost more because supply is limited.
  • Access and extras. Attic and rooftop units, crawl spaces, permits and duct changes add time and cost.

What moves the price up or down

  • Where you live. Labor rates and permit costs differ by state and city.
  • When it breaks. After-hours, weekend and peak-season calls often cost more.
  • Warranty status. An active parts warranty can remove the part from the bill and leave labor.
  • Size and efficiency. Larger and more efficient equipment costs more to buy.
  • The condition of what stays. Reusing sound ducts, wiring and refrigerant lines costs less than replacing them.

This is why a single national average tells you little about your own job. The individual guides explain the drivers for each repair so you can judge a quote on its parts.

How to compare quotes

Ask for every quote in writing, and make sure each one covers the same scope. A useful quote names:

  • the failed part and how it was diagnosed
  • the replacement part or equipment model numbers
  • labor, refrigerant and any permit as separate lines where possible
  • the warranty on the part and on the labor
  • what is not included

For a replacement, the quote should also state the size, the efficiency rating and how the size was calculated. Start with AC replacement cost or furnace replacement cost.

When a repair stops making sense

A repair price only means something next to the alternative. A modest repair on a young system is easy to approve. A large repair on an old system can be money spent on equipment that is close to its next failure.

The repair or replace calculator compares your repair quote with the age of the system, a replacement quote and the repair history, and tells you which way the numbers lean. Use it before you approve any major repair.

Common questions

How much does HVAC repair cost?

It depends on which part failed, how long the job takes, whether refrigerant is involved and where you live. A small electrical part is a minor bill. A compressor or heat exchanger is a major one. The repair guides on this site break each job into its cost drivers.

Why do HVAC prices vary so much between contractors?

Quotes differ in scope as much as in price. One may include a permit, new refrigerant lines and a longer labor warranty, and another may leave them out. Company overhead and local labor rates also differ. Compare quotes line by line to see the real gap.

What does an HVAC service call cost?

Most companies charge a fee to come out and diagnose the problem, and after-hours visits usually carry a higher fee. Ask the amount when you book, and ask whether it is credited toward the repair if you approve the work.

Is it cheaper to replace the AC and furnace together?

Often the combined job costs less than two separate ones, because the labor, the permit and the setup overlap. It only makes sense if both units are near the end of their service. Ask for the price both ways before you decide.

What it costs

HVAC replacement costPublished price ranges for replacing an AC and furnace together, what moves the total, and what a full-system quote should spell out.AC replacement costPublished central AC replacement prices by tonnage, what SEER2 and location do to the total, and how to compare quotes for a new AC unit.Central air installation costWhat it costs to install central air in a home with ducts and without, what drives the price, and when a ductless system is the better fit.Furnace replacement costPublished furnace replacement cost ranges for gas, electric and oil units, what changes the price, and how to judge a new furnace quote.Electric furnace cost and how to estimate running costsWhat an electric furnace costs to buy and install, why it is cheap to put in and can be costly to run, and what to check in a quote.AC repair costPublished AC repair cost ranges by part, from capacitors to compressors, plus what a fair invoice includes and when a repair stops making sense.Furnace repair costPublished furnace repair cost ranges by part, what the service call and labor add, and the point where repairing an old furnace stops paying.HVAC service call and diagnostic feesWhat an HVAC service call or diagnostic fee covers, published fee and hourly ranges, after-hours premiums, and the questions to ask before booking.AC capacitor replacement costPublished AC capacitor replacement cost ranges by type, why the part is cheap and the visit is not, and what to check on the invoice.AC compressor replacement costPublished AC compressor replacement cost by unit size, what warranty changes, and the age and price thresholds where a new unit makes more sense.Evaporator coil replacement costPublished evaporator coil replacement cost by AC size and coil type, what a leaking coil means, and when to replace the system instead.AC condenser replacement costPublished AC condenser replacement cost by tonnage, the difference between the coil and the whole outdoor unit, and when to replace the full system.AC condenser fan motor replacement costPublished AC condenser fan motor replacement cost ranges, what changes the price, and how to confirm the motor is really the failed part.Furnace blower motor replacement costPublished furnace blower motor replacement cost by motor type and horsepower, what labor adds, and when a repair beats a new motor.Furnace ignitor and flame sensor replacement costPublished furnace ignitor and flame sensor replacement cost ranges, why a small part carries a service bill, and when cleaning is enough.Furnace inducer motor replacement costPublished price ranges for inducer motor replacement, what pushes a quote up or down, what the quote should list, and when the repair stops making sense.Heat exchanger replacement costPublished heat exchanger replacement cost ranges, why labor makes up so much of the bill, what a quote must show, and when a new furnace is the better call.Furnace control board replacement costPublished furnace control board replacement cost ranges, what drives the price, what a quote should list, and how to avoid buying a board you did not need.AC refrigerant recharge costPublished AC recharge cost ranges and per-pound prices for R-22 and R-410A, why a recharge always means a leak, and what a fair refrigerant quote includes.Thermostat replacement and installation costPublished thermostat replacement cost ranges by type, what wiring and system type add to the price, and what an installation quote should include.Ductwork replacement and installation costPublished ductwork replacement cost ranges per linear foot and per project, what drives the price, what a quote should include, and when to repair instead.Air duct cleaning costWhat air duct cleaning costs according to the EPA, the few cases where cleaning is justified, how to spot a scam, and what a proper job includes.HVAC maintenance plansPublished HVAC maintenance plan and tune-up prices, what a good service contract covers, the fine print to read, and when a plan is worth paying for.Boiler replacement costPublished boiler replacement cost ranges by home size, what moves a quote up or down, what the quote should include, and when to repair the old boiler.Mini split repair costPublished mini split repair cost ranges by fault, what drives the price of ductless repairs, what a quote should include, and when to replace the system.Trane AC, furnace and heat pump pricesTrane's own published installed price ranges for AC, heat pumps and furnaces, why dealer quotes differ, how the warranty works, and what to compare in quotes.Carrier air conditioner pricesCarrier's published installed AC price range, how its three product tiers and local dealers shape a quote, warranty registration rules, and what to compare.Lennox air conditioner pricesLennox's published HVAC system price ranges by home size, how dealer installation shapes your quote, the warranty registration deadline, and what to compare.Goodman air conditioner pricesWhat published data says about Goodman AC unit cost, why the installer shapes the price, the warranty registration deadline, and what to compare in quotes.

Related guides

CalculatorHVAC Repair or Replace CalculatorEnter your system's age, the repair quote and a few details. See how seven common rules of thumb score repair against replacement, and where they fall short.

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