How much does HVAC cost in San Antonio?
By Our research team · Last verified · Methodology
Most San Antonio homeowners pay $3,800–$8,550 to replace a central AC sized at 3 tons on ducts you already have. $5,900 is typical, and a single-zone 12,000 BTU mini-split is $2,400–$5,400.
How we get this data- Typical
- $5,900
- Low end
- $2,850
- High end
- $12,850
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Get my fair quote →The typical San Antonio price is $5,900, 5% below the US typical of $6,200.
San Antonio's price band
San Antonio is pricier than 65% of the 195 US metros we price for HVAC work.
Expect $3,800–$8,550 for a new 3-ton central AC in San Antonio and $5,900 for a typical job. Homes without ducts usually go ductless: $4,350–$9,650 for two zones and $7,750–$17,400 for four.
San Antonio's long, hot summers make cooling the main load, and the mild winters suit a heat pump in most homes. Under the federal Southeast standard, a new split central AC under 45,000 BTU must be at least 14.3 SEER2.
These are installed prices for San Antonio, re-verified in November 2026. Removal and startup are normally included; the permit, a new line set and duct repairs often are not. Get them itemized.
Comparing cities, or after the US-wide picture? See the national guide: HVAC cost in the USA.
$3,800–$8,550 to replace a 3-ton central AC on existing ducts in San Antonio, installed — $5,900 typical. A heat pump runs $5,300–$12,100, a gas furnace $2,700–$7,750, and AC + furnace together $6,300–$15,450. Verified November 2026. Get free San Antonio quotes →
- 3-ton central AC on existing ducts: $3,800–$8,550 ($5,900 typical)
- Heat pump, 3-ton: $5,300–$12,100; gas furnace: $2,700–$7,750
- AC + furnace together: $6,300–$15,450
- Mini-split: $2,400–$5,400 for one 12,000 BTU zone, $7,750–$17,400 for four
- Downtown, Southtown & the Pearl runs 5–10% above the city average; West Side & South Side: standard pricing
Prices verified November 2026 · Cross-referenced against 45+ American pricing sources · See methodology
Installed prices for the San Antonio metro, re-verified November 2026. Equipment-heavy jobs move less with local labor costs than service calls do.
| Service | Low | Typical | High |
|---|---|---|---|
| Central AC replacement, 3-ton (existing ducts)installed | $3,800installed | $5,900 | $8,550 |
| Central AC + gas furnace, replaced togetherinstalled | $6,300installed | $9,450 | $15,450 |
| Heat pump replacement, 3-ton (existing ducts)installed | $5,300installed | $7,750 | $12,100 |
| Central heat pump, high-efficiency with zoning (3-ton)installed | $9,650installed | $14,000 | $20,300 |
| Gas furnace replacement (80–96% AFUE)installed | $2,700installed | $4,450 | $7,750 |
| Ductless mini-split, 1 zone, 9,000 BTUinstalled | $2,150installed | $3,200 | $4,650 |
| Ductless mini-split, 1 zone, 12,000 BTUinstalled | $2,400installed | $3,750 | $5,400 |
| Ductless mini-split, 1 zone, 18,000 BTUinstalled | $3,100installed | $4,850 | $6,950 |
| Ductless mini-split, 1 zone, 24,000 BTUinstalled | $3,650installed | $6,000 | $8,500 |
| Ductless mini-split, 1 zone, 30,000–36,000 BTUinstalled | $4,650installed | $7,550 | $11,100 |
| Multi-zone mini-split, 2 zonesinstalled | $4,350installed | $6,300 | $9,650 |
| Multi-zone mini-split, 4 zonesinstalled | $7,750installed | $11,600 | $17,400 |
| Like-for-like AC swap: same-size mini-split, existing line setinstalled | $2,200installed | $3,400 | $5,000 |
| Install only: homeowner-supplied mini-split, 1 zonelabor only | $480labor only | $1,050 | $1,900 |
| Evaporative (swamp) cooler, roof-mountedinstalled | $1,250installed | $2,200 | $3,500 |
| Ductwork replacement, whole houseinstalled | $2,400installed | $5,300 | $9,150 |
| AC compressor replacement (out of warranty)per repair | $1,250per repair | $2,050 | $2,900 |
| AC repair, major: refrigerant leak fix + rechargeper repair | $580per repair | $1,250 | $2,400 |
| AC repair, minor: capacitor, contactor or drain lineper repair | $140per repair | $290 | $570 |
| AC tune-upper visit | $70per visit | $100 | $190 |
| Whole-system HVAC tune-up (AC + furnace)per year | $140per year | $220 | $430 |
| Duct cleaning, whole houseper home | $290per home | $430 | $670 |
| Smart thermostat, installedinstalled | $200installed | $290 | $440 |
| Old AC or furnace removal and disposalper unit | $95per unit | $240 | $480 |
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Prices verified November 2026 · Cross-referenced against 45+ American pricing sources · See methodology
Prices cover the San Antonio metro: the city and its close suburbs. Outlying towns can run a little lower; Downtown, Southtown & the Pearl runs a little higher.
HVAC prices across San Antonio
Same city, four kinds of job. Older buildings in Downtown, Southtown & the Pearl take longer, bigger homes in Stone Oak, Alamo Heights & the Northside need bigger systems, and West Side & South Side usually comes in at or under the city typical.
Downtown, Southtown & the Pearl
- Installed
- $4,000–$9,400 installed
- Typical job
- $5,600–$7,450 / 3-ton AC swap
Condos, row houses and older buildings. Condensers often sit on roofs or in tight side yards, and paid parking, freight elevators and building rules all add labor.
East Side & Southeast
- Installed
- $3,900–$9,000 installed
- Typical job
- $5,400–$7,100 / 3-ton AC swap
Older houses next to new infill. The swap itself is standard; the extras are undersized ducts, old wiring and line sets that need replacing for the new refrigerant.
West Side & South Side
- Installed
- $3,800–$8,550 installed
- Typical job
- $5,300–$6,800 / 3-ton AC swap
Established neighborhoods of single-family homes. Most jobs are a standard swap at the city's typical price.
Stone Oak, Alamo Heights & the Northside
- Installed
- $3,800–$9,050 installed
- Typical job
- $5,300–$7,200 / 3-ton AC swap
Larger homes on easy lots. The ton count drives the price more than access, and two-system homes are common.
Real-world HVAC costs in San Antonio
Here's what common HVAC jobs cost in San Antonio in 2026, a 3-ton central AC replacement on existing ducts, installed.
Swap a 3-ton AC on good ducts
Same spot, same size, matched indoor coil, old unit hauled away. Most San Antonio jobs land near $5,900; a 17+ SEER2 unit adds about $2,000.
Replace the AC and gas furnace together
The usual move when both are 15+ years old. One install, one warranty, a matched system. Typical is $9,450.
Switch from AC + furnace to a heat pump
A 3-ton heat pump on existing ducts, typically $7,750. Keeping the furnace as backup (dual-fuel) runs $6,850–$16,400.
Cool one room with a mini-split
A 12,000 BTU single-zone mini-split for a bedroom, office or addition, typically $3,750. A 9,000 BTU unit for a small room is $2,150–$4,650.
Cool a whole home with no ducts
A 4-zone ductless system, typically $11,600. Adding ducts for central AC instead costs $2,400–$9,150 before the equipment.
How much does HVAC cost in San Antonio?
$3,800–$8,550 installed, with $5,900 the typical San Antonio price. The spread is mostly the equipment tier and the install: a standard unit on a ground pad is a one-day job, while rooftop condensers, attic air handlers and new line sets add hours.
Heating changes the math. A gas furnace alone runs $2,700–$7,750, a 3-ton heat pump $5,300–$12,100, and replacing the AC and furnace together $6,300–$15,450. For San Antonio's climate, a heat pump or central AC is the usual fit.
Central AC, heat pump and furnace prices in San Antonio (2026)
A 3-ton central AC runs $3,800–$8,550, a 3-ton heat pump $5,300–$12,100, and a gas furnace $2,700–$7,750, all installed.
| Line on the quote | Low | Typical | High |
|---|---|---|---|
| Central AC replacement, 3-ton (existing ducts) | $3,800 | $5,900 | $8,550 |
| Heat pump, 3-ton (existing ducts) | $5,300 | $7,750 | $12,100 |
| Gas furnace (80–96% AFUE) | $2,700 | $4,450 | $7,750 |
| Central AC + gas furnace together | $6,300 | $9,450 | $15,450 |
| Mini-split, 1 zone, 12,000 BTU | $2,400 | $3,750 | $5,400 |
| Mini-split, 2 zones | $4,350 | $6,300 | $9,650 |
| Mini-split, 4 zones | $7,750 | $11,600 | $17,400 |
| Ductwork replacement, whole house | $2,400 | $5,300 | $9,150 |
AC or heat pump in San Antonio? A heat pump costs about $1,850 more than a 3-ton AC at the typical price, but it also replaces your heating. If your furnace is old, compare a heat pump with the $9,450 AC + furnace swap, not with the AC alone.
What moves an HVAC quote in San Antonio:
- Size: a 2-ton system runs about $4,950 and a 5-ton about $8,300 at the typical price. Ask for a Manual J load calculation.
- Efficiency: the minimum here is 14.3 SEER2; a 17+ SEER2 two-stage unit adds about $2,000.
- Access: attic air handlers, rooftop condensers and tight closets add labor, most often in Downtown, Southtown & the Pearl.
- Line set and coil: a new line set runs $190–$620, and the indoor coil has to match the new refrigerant.
- Season: spring and fall bring the best prices; a breakdown during a summer heat wave brings the worst.
Ask every San Antonio contractor for the same things: tonnage, SEER2 rating, model numbers for both the outdoor and indoor units, and whether the permit and line set are included. Compare those, not just the total. Get a quote for your heating and cooling work →
HVAC cost in San Antonio by home size
About $5,350 for a 2.5-ton AC (1,000–1,600 sq ft), $5,900 for 3 tons (1,600–2,000 sq ft), and $7,300–$8,300 for 4–5 tons in homes over 2,500 sq ft, typical San Antonio prices on existing ducts.
Worked example: a 2,000 sq ft San Antonio home with a 16-year-old AC and furnace. Replacing both runs about $9,450; switching to a 3-ton heat pump on the same ducts runs about $7,750; replacing only the AC is $5,900 but leaves an old furnace in place.
Homes over 2,500 sq ft or with two floors often have two systems or zoning. A high-efficiency zoned heat pump runs $9,650–$20,300, and adding zoning to an existing system $1,650–$4,350.
San Antonio HVAC costs by system type
| System type | Cost | Best for |
|---|---|---|
| Central AC, 3-ton (existing ducts) | $3,800–$8,550 installed | Homes with sound ducts and a furnace or air handler to pair with |
| Ductless mini-split, single zone (9,000–18,000 BTU) | $2,150–$6,950 installed | One room, an addition, or a home with no ducts |
| Multi-zone ductless mini-split (2–4 zones) | $4,350–$17,400 installed | Whole homes with no ducts, room-by-room control |
| Heat pump, 3-ton ducted (heats and cools) | $5,300–$12,100 installed | Mild and hot climates; replacing an AC and electric heat |
| Gas furnace + AC, replaced together | $6,300–$15,450 installed | Cold climates with natural gas and old equipment on both sides |
| Gas furnace only (80–96% AFUE) | $2,700–$7,750 installed | When the AC is newer than the furnace |
| Dual-fuel: heat pump + gas furnace | $6,850–$16,400 installed | Cold climates: electric heat most days, gas on the coldest |
| Cold-climate heat pump, 3-ton ducted | $9,200–$23,200 installed | Northern homes leaving gas, oil or propane |
| Central heat pump, high-efficiency with zoning | $9,650–$20,300 installed | Big or two-story homes with hot and cold rooms |
| Evaporative (swamp) cooler, roof-mounted | $1,250–$3,500 installed | Dry Western climates only |
| Geothermal heat pump (ground loop) | $14,500–$33,800 installed | Large lots and long stays in one home |
| Window or through-the-wall AC | $200–$1,150 installed | Single rooms and renters; cheapest way to cool |
Equipment vs installation: the San Antonio AC bill
On a typical $5,900 3-ton swap in San Antonio, the condenser and matched coil are roughly $2,350–$3,550 and the rest is labor, materials, the permit and overhead. Labor usually makes up 40–60% of an AC replacement.
Buying the unit yourself rarely saves much: many contractors won't install customer-supplied equipment, and the ones who do charge $480–$1,900 or more for a mini-split and won't cover the parts. Brand warranties often require a licensed installer.
What's included in a San Antonio AC replacement (and what costs extra)
A standard replacement quote covers the outdoor unit, a matched indoor coil, refrigerant, connection to your existing ducts and wiring, removal of the old unit, and startup. Common extras:
- Permit and inspection: $95–$240, often built into the quote
- New refrigerant line set: $190–$620 if the old one can't be reused
- New condenser pad: $40–$240
- Electrical panel upgrade: $810–$3,850, mostly when adding a heat pump or more capacity
Ask for the AHRI certificate showing the matched rating of your outdoor and indoor units. It proves the system you paid for is the one that was installed.
Climate and what it means here
San Antonio's long, hot summers make cooling the main load, and the mild winters suit a heat pump in most homes. Under the federal Southeast standard, a new split central AC under 45,000 BTU must be at least 14.3 SEER2.
System size
Each ton adds equipment cost: about $4,950 for 2 tons and $7,300 for 4 tons at the typical San Antonio price. A Manual J load calculation often shows a smaller system will do.
Efficiency rating
The federal minimum for a new split AC here is 14.3 SEER2 for units under about 3.75 tons, and 13.8 SEER2 for bigger units. Higher ratings cost more upfront and pay back fastest where AC runs most of the year.
New refrigerants
New systems use A2L refrigerants (R-454B or R-32), so the indoor coil must match the outdoor unit. That's why condenser-only swaps are rare now, and why older R-410A systems cost more to service.
Ducts and access
Leaky or undersized ducts, attic air handlers and rooftop condensers add hours. Whole-house duct replacement runs $2,400–$9,150.
Location: Downtown, Southtown & the Pearl vs West Side & South Side
Downtown, Southtown & the Pearl jobs cost more because of access, parking and older buildings. West Side & South Side quotes usually sit at or a little under the city typical.
Season and urgency
Replacing on your schedule in spring or fall is cheaper than an emergency swap in a heat wave. After-hours repair labor runs $150–$240 an hour.
- Get three quotes for the same system.Same tonnage, same SEER2 rating, model numbers on every quote. San Antonio quotes for the same 3-ton swap run anywhere from $3,800 to $8,550.
- Replace before it fails.If your system is 12–15+ years old, replace it in spring or fall. Emergency replacements in peak season leave no room to shop around.
- Right-size the system.Ask for a Manual J load calculation. An oversized AC costs more, cycles on and off, and leaves the house clammy.
- Check your utility for rebates.There is no federal tax credit for systems installed in 2026, but many utilities still pay rebates on efficient heat pumps and AC. Check before you sign; most require pre-approval or a listed contractor.
- Do the AC and furnace together if both are old.One install of both runs $6,300–$15,450, less than two separate jobs.
- Keep up with tune-ups.A yearly tune-up at $70–$190 catches weak capacitors and low refrigerant before they kill a compressor ($1,250–$2,900).
Before you pay a deposit to a San Antonio HVAC contractor, get these in writing:
- Tonnage and how it was sized (a Manual J load calculation)
- Model numbers for the outdoor unit and the indoor coil or air handler
- The matched SEER2 (and HSPF2 for a heat pump) rating
- Whether the line set is new, flushed or reused
- Permit, inspection and removal of the old unit
- Thermostat, pad, disconnect and any electrical work
- Parts and labor warranty terms, and who registers the equipment
- Total price, deposit, and start and finish dates
How much does it cost to replace a central AC in San Antonio?
$3,800–$8,550 for a 3-ton system on existing ducts, installed, with $5,900 typical in San Antonio. Higher-efficiency units, attic or rooftop installs and new line sets push it up.
How much does a heat pump cost in San Antonio?
$5,300–$12,100 for a 3-ton heat pump on existing ducts, about $7,750 typical. A high-efficiency zoned system runs $9,650–$20,300.
How much is a new furnace in San Antonio?
$2,700–$7,750 for a gas furnace installed, about $4,450 typical. With a new AC at the same time, $6,300–$15,450.
How much does a mini-split cost in San Antonio?
$2,400–$5,400 for a 12,000 BTU single zone, $4,350–$9,650 for two zones and $7,750–$17,400 for four.
How much is an AC tune-up in San Antonio?
$70–$190 per visit. A yearly plan for AC and furnace runs $140–$430.
How much does AC repair cost in San Antonio?
$140–$570 for common fixes like a capacitor or contactor. A refrigerant leak repair with recharge runs $580–$2,400, and a compressor $1,250–$2,900.
What size AC does a San Antonio home need?
As a rough guide, 2.5 tons covers about 1,000–1,600 sq ft and 3 tons about 1,600–2,000 sq ft, but insulation, windows and climate change that. Ask for a Manual J load calculation instead of matching the old unit.
Is there a tax credit for a new AC or heat pump in San Antonio?
No federal one for 2026: the 25C credit covered improvements made through December 31, 2025. Utility and state rebates may still apply, so check before you buy.
Do I need a permit to replace an AC in San Antonio?
Usually, yes. Most US cities and counties require a mechanical permit for an AC or furnace replacement, typically $95–$240, and a licensed contractor normally pulls it.
How much does it cost to add ducts in San Antonio?
$2,400–$9,150 for whole-house ductwork, before the AC or heat pump. In many older homes a multi-zone mini-split ($7,750–$17,400 for four zones) costs less.
Prices verified November 2026 · Cross-referenced against 45+ American pricing sources · See methodology
Prices for the San Antonio metro area, November 2026. Outer suburbs may vary.
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