HVAC repair averages around $350 nationally, with most jobs landing between $150 and $650. A full system replacement typically runs $5,000 to $12,500 installed, with the average closer to $7,500. For a 2,000 sq ft home with a new central AC and gas furnace, plan on $8,000 to $14,000 all-in once permits, ductwork, and labor are factored in.
Those are the headline numbers. The actual figure for your home will depend on which component failed, your system’s age, local labor rates, and — increasingly — whether your equipment uses older R-410A refrigerant or one of the new A2L refrigerants now entering the market. This guide breaks down every major cost category and helps you decide whether a repair or a replacement makes more financial sense.
How Much Does AC Repair Cost?
The national average for AC repair sits at roughly $350, though the range runs wide. This Old House puts the typical range at $100 to $1,000+; HomeAdvisor pegs the average at $350 with a range up to $3,000; Angi reports $450 to $2,000 for central AC specifically. The spread reflects how different the jobs are — a failed capacitor is an inexpensive fix, while a cracked evaporator coil or a failed compressor can push well past $2,000.
Common AC Repair Costs by Component
These are national averages for parts plus labor, installed. Your area and system will vary.
| Repair | Typical Cost Range |
|---|---|
| Service call / diagnostic | $75–$200 |
| Capacitor replacement | $80–$400 (avg ~$175) |
| Contactor / relay | $100–$450 |
| Thermostat (standard) | $150–$350 |
| Thermostat (smart, installed) | $200–$450 |
| Refrigerant recharge (R-410A) | $100–$320 |
| Refrigerant leak repair | $200–$1,500 |
| Condensate pump / drain flush | $75–$450 |
| Condenser fan motor | $200–$700 |
| Blower motor (single-speed) | $300–$900 (avg ~$560) |
| Blower motor (variable-speed) | $600–$1,500 |
| Circuit board | $100–$600 |
| TXV / expansion valve | $100–$500 |
| Evaporator coil (in-warranty) | $1,000–$2,500 |
| Evaporator coil (out-of-warranty) | $2,500–$4,500+ |
| Condenser coil | $1,000–$4,000+ |
| AC compressor (no warranty) | $800–$2,300 (avg ~$1,200) |
| AC compressor (under warranty) | $600–$1,200 (labor only) |
For a deep dive on compressor pricing, see our dedicated AC compressor replacement cost page. For routine tune-ups and seasonal checks, our AC service cost guide covers what to expect.
Labor Rates
HVAC technician labor runs $75 to $150 per hour in most markets, based on consensus data from HomeGuide, Trane, and Bob Vila. Some HomeAdvisor pages cite $100 to $250 per hour, but that range appears to skew toward commercial work. Emergency or after-hours calls typically carry a 1.5x to 3x surcharge over the standard rate.
How Much Does HVAC Repair Cost (Full System)?
When the call is about the heating side — or the system as a whole — costs follow a similar pattern. HomeAdvisor puts the HVAC repair national average at $350, ranging from $130 to $2,000 depending on the job.
Heating components tend to cost somewhat less than their cooling equivalents for minor repairs, but major jobs like a heat exchanger replacement can get expensive quickly.
| Heating Repair | Typical Cost Range |
|---|---|
| Ignitor replacement | $150–$500 |
| Flame sensor | $80–$250 |
| Gas valve | $200–$800 |
| Control board | $200–$650 |
| Blower motor | $150–$2,000 |
| Draft inducer motor | $200–$1,500 |
| Heat exchanger replacement | $1,000–$3,000 |
Furnace repair specifically averages $300 to $318, with a typical range of $125 to $505. Heat pump repair averages around $410, ranging $161 to $661. See our furnace repair cost breakdown for component-level furnace pricing.
How Much Does HVAC Replacement Cost?
Full system replacement averages $7,500 nationally, with most homeowners paying $5,000 to $12,500 installed. Premium systems, larger homes, or installs that require new ductwork can reach $12,500 to $22,000 or more.
Replacement Cost by System Type
| System Type | Installed Cost Range |
|---|---|
| Central AC only | $4,000–$8,000 |
| Gas furnace only | $3,800–$10,000 (avg ~$4,800) |
| Air-source heat pump | $4,200–$7,600 (avg ~$6,085) |
| Ductless mini-split | $2,000–$14,500 |
| Dual-fuel (heat pump + gas) | $7,250–$10,800 |
| Geothermal heat pump | $6,000–$24,000 |
Replacement Cost by Home Size (AC + Gas Furnace)
The figures below come from This Old House and reflect a standard 14.3 SEER2 AC paired with a gas furnace. They exclude major ductwork repairs.
| Home Size | Estimated Installed Cost |
|---|---|
| Under 1,000 sq ft | $5,000–$7,000 |
| 1,500 sq ft | $6,500–$9,500 |
| 2,000 sq ft | $8,000–$14,000 (avg ~$8,283–$11,000) |
| 2,500 sq ft | $10,000–$16,000 |
| 3,000+ sq ft | $12,000–$22,000+ |
Replacement Cost by SEER2 Rating (2,000 sq ft, AC + Gas Furnace)
| SEER2 Rating | Avg Installed Cost |
|---|---|
| 14.3 (federal minimum, southern U.S.) | ~$8,283 |
| 16.1 | ~$10,573 |
Higher efficiency units cost more upfront but reduce operating costs. ENERGY STAR estimates that a new qualifying system can cut heating and cooling energy use by up to 20% compared to standard models — and if your current system is 15 or more years old, a new unit may be 30 to 50% more efficient.
Add-On Costs to Budget For
- Ductwork repair or replacement: $1,400–$5,600 for repairs; $3,000–$7,500 for full replacement
- Permits: $50–$400 depending on municipality
- Removal and disposal of old equipment: $60–$500
The 2025–2026 Refrigerant Transition: What It Means for Your Budget
If you’re getting quotes right now, the refrigerant question matters more than it has in years.
The AIM Act banned manufacturing of new R-410A residential split systems as of January 1, 2025. Pre-2025 R-410A equipment can still be installed until existing inventory runs out (New York set its own install cutoff of January 1, 2026). New systems use A2L refrigerants: primarily R-454B (used by Carrier, Trane, and Lennox in ducted systems) and R-32 (Daikin, Goodman, and most mini-splits).
The practical cost impact:
- R-410A refrigerant prices have risen roughly 300% since 2020, now running $50–$80 per pound at the homeowner-facing rate (wholesale is $12–$25/lb). R-22 — the older refrigerant phased out in 2020 — followed a similar path, spiking 600% over five years post-phaseout.
- New A2L-compatible systems carry a price premium of approximately 10–30% over comparable R-410A units. Industry sources estimate the average residential system costs about $3,000 more than a comparable 2024 unit (per Facilities Dive, May 2025).
- If your current system uses R-410A and needs a refrigerant recharge, expect to pay more than you did two or three years ago. A refrigerant recharge now averages around $600 nationally according to HomeAdvisor.
The refrigerant transition is one reason the repair-vs-replace math has shifted — if an older R-410A system needs a major repair, the long-term refrigerant cost is a real factor in the decision.
Repair vs. Replace: How to Decide
There are two widely-used rules of thumb for this decision. Neither is a hard regulatory standard — they’re contractor heuristics with broad industry support.
The $5,000 Rule
Multiply the estimated repair cost by the system’s current age in years. If the result exceeds $5,000, replacement is generally the better financial move. For example: a $400 repair on a 10-year-old system = $4,000 (repair); a $400 repair on a 14-year-old system = $5,600 (replace). Sources including This Old House, HomeGuide, Bob Vila, and Angi all cite this threshold. Some 2025–2026 contractor sources argue the threshold should be raised to $6,000–$7,000 to account for higher system prices, but that view isn’t yet mainstream.
The 50% Rule
If a single repair costs 50% or more of what a new system would cost, replacement typically makes more financial sense. Since a new central AC runs $3,900 to $7,900, the trigger point falls around $2,000 to $3,950. This Old House, HomeGuide, Bob Vila, and NerdWallet all reference this framework. For guidance on that specific decision, see our repair or replace guide.
Age Thresholds
- AC and heat pumps: Start evaluating replacement at 10–12 years; a strong replace signal at 15–20 years. ENERGY STAR recommends evaluating AC units older than 10 years.
- Furnaces: Replace signal at 15 years or older; typical lifespan is 15–25 years (best case 30). ENERGY STAR flags furnaces over 15 years.
Age alone doesn’t determine the decision, but an aging system combined with an expensive repair is often the clearest case for replacement.
How to Reduce HVAC Repair and Replacement Costs
Get multiple quotes. For any repair over $500, and for all replacements, get at least two to three estimates. Labor and markup vary significantly by contractor.
Federal tax credits. Under the Inflation Reduction Act, qualifying heat pump installations are eligible for a federal tax credit of up to 30% or $2,000. The broader energy efficiency home improvement credit caps at $3,200 per year across qualifying HVAC and building envelope improvements. Check ENERGY STAR for current equipment requirements and income limits.
Maintain the system. Annual HVAC maintenance — typically $75 to $200 per year — catches small problems before they become large repairs, extends equipment lifespan, and keeps manufacturer warranties valid. Most warranties require documented annual service.
Ask about warranty coverage. Compressor and coil repairs under a valid parts warranty drop significantly — a compressor replacement falls from $800–$2,300 to $600–$1,200 (labor only) when parts are covered. Verify your warranty before authorizing any major repair.
Time non-emergency work off-peak. Spring and fall are slower seasons for HVAC contractors; some offer lower rates or faster scheduling. Avoid emergency/after-hours calls when possible — the surcharge is 1.5x to 3x standard labor.
Frequently Asked Questions
How much does HVAC repair cost on average?
Most HVAC repairs run $150 to $650, with a national average around $350. Major repairs like a compressor or coil can reach $1,000 to $5,000 or more. The service call or diagnostic fee alone typically runs $75 to $200 before any repair work begins.
How much does it cost to replace an HVAC system?
A full HVAC system replacement typically costs $5,000 to $12,500 installed, averaging about $7,500. For a 2,000 sq ft home with a central AC and gas furnace, plan on $8,000 to $14,000 all-in once labor, permits, and any ductwork are included. Premium systems or larger homes can reach $20,000 or more.
When should I replace my HVAC instead of repairing it?
Replace when the repair cost multiplied by the system’s age in years exceeds about $5,000, when a single repair is more than half the price of a new system, or when the unit is past 12 to 15 years old. Any one of these signals on its own warrants a quote for replacement; two or more together make a strong case for it.
How is the R-410A phasedown affecting HVAC costs in 2025 and 2026?
Manufacturing of new R-410A residential split systems was banned on January 1, 2025. Existing R-410A stock can still be installed until supplies run out. Refrigerant prices have risen roughly 300% since 2020, and new A2L-compatible systems cost approximately 10 to 30% more than comparable R-410A units — about $3,000 more on average for a residential install.
What tax credits are available for a new HVAC system?
Under the Inflation Reduction Act, qualifying heat pump installations can earn a federal tax credit of up to 30% or $2,000. The broader HVAC energy efficiency credit caps at $3,200 per year. Check ENERGY STAR for current equipment requirements and consult a tax professional for your specific situation.