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Cost guide

Air Conditioner Repair Cost

Diagnosing and repairing a residential air conditioning system that is not cooling properly.

Typical range
$150–$2,500
Most people pay
$450

National cost range

National range, per repair

$150 – $2,500

Most homeowners pay around $450. The spread is real, not hedging — the drivers below determine which end of it you land on.

Low end
$150
Simple access, like-for-like
Typical
$450
What most jobs come in at
High end
$2,500
Upgrades, difficult access, code work

What you are actually paying for

Find the row that matches your situation. Quotes that differ wildly from each other usually differ in scope, not in price.

ScenarioTypical cost
Capacitor replacementThe single most common AC failure.$150–$400
Contactor replacementOften paired with a capacitor on an older unit.$150–$400
Refrigerant leak repair and rechargeCost depends heavily on leak location and refrigerant type.$400–$1,800
Blower motor replacementECM variable-speed motors sit at the high end.$450–$1,400
Evaporator coil replacementAt this price, evaluate replacement of the full system.$1,200–$3,000
Compressor replacementOn a unit past 10 years, replacement is usually the better economic decision.$1,500–$3,500

What moves the price

In descending order of impact. These are also the questions worth asking a contractor whose quote sits outside the range above.

  1. What failed

    A capacitor is under $300 installed. A compressor or an evaporator coil can approach the cost of a new system, which is when the repair-versus-replace question becomes real.

  2. Refrigerant type

    R-22 is no longer produced and costs several times more than current refrigerants. A leak on an R-22 system usually favors replacement.

  3. Diagnostic fee

    Most companies charge $75 to $200 to diagnose, often credited toward the repair if you proceed.

  4. Timing of the call

    Emergency, after-hours and weekend calls during a heat wave carry premiums of 50 to 100%.

  5. Warranty status

    Most equipment carries a 10-year parts warranty if it was registered. Labor is usually not covered past the first year, but the part itself may be free.

Direct answer

Residential air conditioner repair in 2026 typically runs $150 to $2,500 per visit nationally, with most completed fixes clustering near $250 to $750 after the diagnostic fee. Capacitors, contactors, and fan motors sit at the low end; evaporator or condenser coil leaks and compressor failures approach replacement economics. After-hours summer calls and R-22 legacy refrigerant multiply costs, so the decisive factor is usually equipment age and whether the failed part is a wear item or a sealed-system problem.

What each price band actually buys

Low end
Diagnostic credited toward repair, simple electrical component, system under ten years.
Typical
Fan motor, control board, or refrigerant leak at a fitting with small charge.
High end
Coil leak repair, compressor work, or major electrical on systems nearing replacement age.

Labor vs materials

Typical split for this job nationally: roughly 55% labor and 45% materials. Crew size is usually 1 HVAC technician, across one visit; occasional return for parts.

What this price usually does not include

  • Full system replacement or duct modifications
  • After-hours premium unless quoted as emergency rate
  • Annual maintenance plan or filter subscriptions
  • Home warranty dispatch fees paid by homeowner to third parties
  • Structural repair if condenser pad settled severely
  • Permit for equipment replacement if repair fails

Hidden costs that show up on real jobs

ItemHow often
Refrigerant recharge after leak repair40–60% when leaks are found
Hard-start kit or surge damage to control boards15–25% on lightning-prone regions
Condensate drain clearing causing overflow damage20–30% in humid summers
Borrowed loaner capacitors leading to repeat visitOccasional when parts not stocked
Home warranty denials billed to homeownerCommon when diagnosis exceeds coverage caps

Regional variation

Repair trip charges rise in heat waves when on-call rotations stack: desert Southwest and Southeast metros see emergency multipliers more often than mild coastal markets. Parts availability is similar nationally. Use `/home/cost/ac-repair/[metro]` when localized medians exist, and compare diagnostic fees—they range $75 to $200 and may or may not credit toward work.

Localized cost pages (where available)

Repair vs replace

Repair when the system is under 10–12 years, the failure is a known wear part, and refrigerant type is current. Replace when the compressor fails, the evaporator coil leaks repeatedly, or repair plus recharge exceeds one-third the cost of a new matched system—especially on R-22 equipment. Two major repairs in three years usually signal end of economic life. Ask for a written repair quote and a replacement quote side by side before authorizing coil or compressor work on aged gear.

Repair vs replace calculatorRelated cost guide

Timeline and visits

Many repairs finish same visit in one to three hours. Coil or compressor work may require ordering parts and a second trip. Summer backlog can delay non-emergency slots several days.

Quote checklist — line items a fair bid should show

  1. Diagnostic fee and credit policy
  2. Failed part identified and part number
  3. Labor hours or flat rate for repair category
  4. Refrigerant type and pounds if recharge included
  5. Warranty on parts and labor
  6. Recommendation if system is near replacement age
  7. Payment due at completion
  8. Follow-up visit policy if issue recurs

Questions to ask before you sign

  • What exactly failed and how did you verify it?
  • If refrigerant was low, where was the leak and did you repair it?
  • Is my compressor amperage within spec after the fix?
  • What would replacement cost if this repair does not hold?
  • Is the part OEM or universal, and what is the warranty?
  • Does this repair qualify for manufacturer warranty registration?

Quote red flags for this job

  • Recharge without leak search on a sealed system
  • Cannot explain superheat/subcooling readings
  • Insists replacement without offering repair option on young systems
  • Cash-only with no invoice for warranty
  • Adds refrigerant by ‘feel’ without scale
  • Diagnostic fee not disclosed before truck roll

Payment schedule norms

Repairs are typically due on completion; some companies invoice commercial accounts net-15. Diagnostic fee is due even if you decline repair—confirm in writing.

Check a deposit against your state

Seasonality

Highest demand and emergency rates June through August in cooling climates. Schedule spring tune-ups to catch capacitors before peak season.

Can you do it yourself?

Limited DIY scope

A homeowner can change filters, clear the condensate drain, wash the condenser coil and check the breaker. Anything involving refrigerant legally requires EPA Section 608 certification, and capacitors store a lethal charge even with power off.

Permits and inspection

Component repairs generally do not require a permit. Equipment replacement does.
Run the DIY vs. pro decisionCheck a quote you already have

When this cannot wait

  • Indoor temperatures unsafe for infants, elderly or medically vulnerable occupants
  • Burning smell or visible scorching at the outdoor unit
  • Ice on the refrigerant lines — shut the system off to prevent compressor damage
  • Breaker tripping repeatedly on the condenser circuit

For trade owners

Pricing this job as a contractor?

Homeowners see national ranges on this page. If you are building the estimate, use the same scope assumptions — then price to burdened labor, overhead recovery and a real margin.

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Common questions

Why is my AC blowing warm air?
The most common causes are a failed capacitor, a tripped breaker, a dirty filter restricting airflow, a frozen evaporator coil or low refrigerant from a leak. Check the filter and breaker before calling.
Is it worth repairing a 15 year old AC?
Usually not for a major component. At 15 years, a $1,500 compressor or coil repair buys you a few years on equipment near end of life, while the same money contributes meaningfully toward a new system.
AC blowing air but not cold — how much does it cost to fix?
The most common fixes: dirty filter (free), tripped breaker (free), failed capacitor ($150 to $400), low refrigerant from a leak ($400 to $1,800), or frozen coil from restricted airflow ($150 to $400 after thawing). Diagnostic fee is $75 to $200, often credited toward repair.
Outside AC unit running but no cold air inside — what does repair cost?
If the outdoor unit runs but indoor air stays warm, suspect a failed capacitor ($150 to $400), low refrigerant ($400 to $1,800), or a stuck contactor ($150 to $350). A blower motor failure ($450 to $1,400) also produces weak or warm airflow. Service call plus repair typically totals $200 to $600 for common failures.
AC fan spinning but compressor not starting — what does repair cost?
A failed capacitor is $150 to $400 installed — the most common cause. A seized compressor is $1,500 to $3,500. On units over 12 years, compressor failure usually triggers replacement ($4,500 to $8,500) rather than repair. Diagnostic fee: $75 to $200.
Ice on the AC refrigerant line outside — what does repair cost?
Shut the system off immediately. Ice means restricted airflow or low refrigerant. After thawing (2 to 4 hours), a dirty filter fix is free; a refrigerant leak repair runs $400 to $1,800. Running the system iced over can destroy the compressor — a $1,500 to $3,500 repair.
AC stopped working during a heat wave — what does emergency repair cost?
Emergency and after-hours service adds $100 to $300 to the diagnostic fee ($75 to $200). Common same-visit repairs — capacitor, contactor, fuse — run $150 to $400 total. If the compressor failed during a heat wave, expect $1,500 to $3,500 for repair or $4,500 to $8,500 for emergency replacement scheduling.
AC making a loud buzzing noise then stopped — what does repair cost?
Buzzing followed by silence usually means a failed capacitor ($150 to $400) or contactor ($150 to $350). If the compressor hums but won't start, the capacitor is still the first suspect. A hard-start kit is $200 to $400. If the compressor is locked, replacement is $1,500 to $3,500.
How much does AC repair cost if the unit is 10 years old?
Minor repairs under $500 — capacitor, contactor, drain clearing — are worth doing at any age. Major repairs over $1,500 (compressor, coil) on a 10-year-old unit should be compared to replacement at $4,500 to $8,500. A useful rule: if the repair exceeds 50% of replacement cost, replace.
Window AC not enough — central AC repair vs. replace cost?
Repairing an existing central system runs $150 to $600 for common failures. If the central system needs a compressor ($1,500 to $3,500) and is over 12 years old, replacement at $4,500 to $8,500 outperforms stacking window units at $300 to $600 each plus $50 to $150 per month in extra electricity.

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