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AfterHow Much Does AC Installation Cost in San Antonio?
A full AC installation in San Antonio typically runs $3,500 to $7,500 for a standard residential system, with most homeowners landing between $4,500 and $6,000 for a mid-range unit sized for a typical San Antonio home. That range covers the equipment, labor, refrigerant, new line set, electrical work, and haul-away of the old system. A basic 14 SEER unit in a smaller single-story house starts near the low end, while a high-efficiency variable-speed system for a two-story home in Alamo Ranch or Stone Oak pushes toward (and sometimes past) the top of that range.
If you’re replacing an aging unit before another Texas summer hits, you want real numbers before anyone steps foot in your home. That’s exactly how we operate at Brandt HVAC Co San Antonio. You’ll get a written line-item price before any work begins, and the technician standing at your door is someone we’ve already introduced to you by name and photo.
Key Takeaways: AC Installation Costs in San Antonio
- Typical full-system install: $3,500 – $7,500 before any rebates or incentives
- Standard 3-ton replacement: $4,200 – $5,800 for most San Antonio homes
- High-efficiency 16+ SEER systems: $5,500 – $8,000+
- What drives cost: system size, efficiency rating, ductwork condition, accessibility, and electrical upgrades
- Labor is 30 – 40% of the total: a proper install takes one to two full days
- Every Brandt HVAC quote is written, line-by-line, before work starts
AC Installation Cost Breakdown (2026)
Here’s where the money actually goes on a typical San Antonio AC installation. These numbers reflect what we’re seeing across the market in 2026, from established HVAC companies that carry proper licensing and insurance. The low end assumes a straightforward swap-out with no ductwork changes. The high end reflects a full-system replacement with electrical or ductwork work included.
| Line Item | Low End | High End | Notes |
|---|---|---|---|
| Condenser unit (outdoor) | $1,400 | $3,200 | 3-ton, 14 SEER vs. 3-ton, 18 SEER variable-speed |
| Evaporator coil (indoor) | $500 | $1,100 | Must match the condenser for efficiency rating to hold |
| Furnace or air handler | $800 | $2,500 | Many San Antonio homes pair AC with a gas furnace; heat pump setups differ |
| Refrigerant line set | $200 | $450 | Older lines often won’t handle new R-410A or R-454B refrigerant pressures |
| Labor (1 – 2 days) | $1,200 | $2,400 | Two technicians, proper vacuum, pressure testing, startup calibration |
| Electrical work | $150 | $600 | New disconnect box, whip, breaker, or panel adjustments if needed |
| Pad, lines, drain, misc. | $150 | $400 | Concrete or composite pad, pvc drain line, minor duct connections |
| Permit and disposal | $100 | $350 | San Antonio requires mechanical permits on HVAC changeouts |
| Total typical range | $3,500 | $7,500 | Mid-range 15 – 16 SEER systems cluster around $4,500 – $5,500 |
What moves you toward the top of that table? Three things usually do it. First, ductwork. If your existing ducts are undersized for a new, larger system, or if there’s leakage at the plenum connections, you’ll need sealing or replacement work. Second, accessibility. Attic installs in older San Antonio homes with tight crawl access or low-pitch roofs take longer and cost more than a ground-level closet swap. Third, efficiency. A 14 SEER unit meets minimum code, but many San Antonio homeowners go 16 SEER or higher because CPS Energy summer rates punish low efficiency.
We believe in showing you the full breakdown up front. Our AC installation service in San Antonio works on a simple principle: you see the price before any tools come off the truck, and that price is the price. No surprise line items at the end.
What Affects AC Installation Pricing in San Antonio
San Antonio isn’t a generic market. The climate, the housing stock, and local utility rebates all shape what a fair install costs here. These are the factors we see move pricing in this market specifically:
- System size (tons of cooling): A 2,000 square foot single-story home in Leon Valley might need 3 tons. The same square footage across two stories in Stone Oak, with more sun exposure and heat gain, could need 3.5 or 4 tons. Each half-ton step adds roughly $400 – $700 in equipment cost.
- Efficiency rating (SEER2): San Antonio’s 2026 minimums follow Texas energy code. A 14.3 SEER2 system is the entry point. Going to 16 or 17 SEER2 adds $1,200 – $2,500 up front but cuts cooling bills 20 – 30% during July and August, when your AC runs 14 – 16 hours a day.
- Age and condition of your ductwork: Homes built before 2000 in North Central San Antonio frequently have ducts with 20 – 30% leakage. If we find that, a new unit still underperforms unless ducts are sealed or replaced. Duct sealing typically runs $60 – $120 per run; full duct replacement on a 2,000 square foot home can add $1,800 – $3,500.
- Access and location: A condenser swapped in a side yard with horse-fencing clearance and easy electrical access is a four-hour job. A condenser tucked behind a backyard pergola in Terrell Hills, requiring line set through a finished ceiling, adds real labor hours.
- Refrigerant type: The HVAC industry is moving from R-410A to R-454B (A2L) refrigerant. R-410A is being phased down under federal rules, which means parts and refrigerant for older systems are getting more expensive each year. New R-454B systems meet the 2026 code and avoid future refrigerant cost spikes.
- Electrical capacity: Older San Antonio homes, especially those built pre-1990, often have 100-amp panels. If your panel is full, adding a dedicated circuit for a new condenser requires a subpanel or service upgrade. That’s not HVAC work per se, but it shows up on the invoice and can add $800 – $1,800.
Does AC Installation Require a Permit in San Antonio?
Yes. The City of San Antonio requires a mechanical permit for any HVAC system replacement or new installation. The permit must be pulled by a licensed contractor, and the work must pass a city inspection. The cost of the permit is typically included in your installation quote (we show it as a line item), and it protects you in two ways: it ensures the work meets current building and energy codes, and it creates a paper trail if the system has problems down the road. A company that offers to skip the permit to save you $100 is cutting a corner that can bite you when you sell the home.
How Long Does AC Installation Take in San Antonio?
For a standard changeout, one day to one and a half days. A full system replacement with ductwork, electrical, and line set work can stretch to two full days. Here’s the sequence:
- Day 1, morning: Technicians arrive (you’ve already gotten their names and photos from us before dispatch). They protect the work path with drop cloths, confirm the write-up, and shut down power to the existing system.
- Day 1, mid-morning to afternoon: Remove the old condenser, coil, and air handler. Inspect duct connections and line set condition. Flush or replace the line set as needed. Set the new condenser on a pad, install the coil and air handler, and make electrical connections.
- Day 1, late afternoon: Braze line connections, pressure-test with nitrogen, pull a proper vacuum (this alone takes 45 – 90 minutes and is where a lot of sloppy installers cut corners). Charge the system with refrigerant and run startup calibration.
- Day 2 (if needed): Finish any ductwork, thermostat wiring, or electrical panel work. Run a full system cycle test, measure airflow and temp drop across the coil, and walk you through the thermostat settings. City inspection is scheduled after the work is complete.
We don’t rush this. A proper vacuum matters because moisture in the lines destroys compressor life. A proper startup matters because an overcharged system runs hot and short-cycles. This is why our home service approach treats installation as precision work, not a race.
How to Save on AC Installation in San Antonio
You can bring the price down without buying inferior equipment. Here’s what actually works in this market:
- Get the CPS Energy rebate before you buy. CPS Energy runs demand-response and efficiency rebate programs that change annually. In 2026, qualifying high-efficiency systems (typically 16 SEER2 and above) can earn $300 – $1,000 back depending on the tier. We fill out the paperwork as part of the install. Some manufacturers (Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, American Standard) also run spring and fall rebates of $200 – $800.
- Time it for spring or fall. Demand for AC installation in San Antonio spikes every May through August. HVAC crews are fully booked, and prices firm up. If your system is limping but still breathing, an October or March install often gets you better scheduling flexibility and occasionally a manufacturer rebate window that isn’t available mid-summer.
- Bundled efficiency: If your furnace is 15+ years old, replacing it alongside the AC is often cheaper than doing them separately two years apart. The coil has to match the condenser anyway, and replacing the air handler at the same time avoids a second labor trip and second permit.
- Don’t oversize. A bigger system is not a better system. An oversized AC cools the house quickly, then shuts off before it dehumidifies. San Antonio’s summer humidity is the part that makes you miserable. A Manual J load calculation tells us exactly what your home needs, and we include that calculation in our process rather than guessing by square footage.
- Repair first if the math works. If your system is under 10 years old and the repair is under $650 (compressor, capacitor, or fan motor), a repair usually makes more sense than a full install. We’ll give you the AC repair cost picture honestly, even if the profit on a new install would be higher. A company that tells you to replace a 6-year-old system over a $200 capacitor is not working for you.
Call (361) 470-8872 and we’ll give you a free estimate on the phone and a written quote for any installation we recommend. No obligation, and the quote is yours to keep and compare.
Is It Cheaper to Repair or Replace Your AC in San Antonio?
Here’s the decision rule we give San Antonio homeowners: If the repair cost is under 40% of the replacement cost, and the system is under 12 years old, repair it. If the repair is more than that, or the system is 15+ years old, replace it. A $550 blower motor repair on a 9-year-old system makes sense. A $1,900 compressor replacement on a 16-year-old system with a failing coil usually doesn’t.
There’s a San Antonio-specific angle too: a 10-year-old AC that has limped through 14 summers of 100-degree heat has already consumed most of its design life. The average AC lifespan in South Texas runs 10 – 14 years, shorter than the national average because of how many hours per year our systems run. Don’t sink $1,000 into a system that’s statistically on borrowed time.
What Brands Does Brandt HVAC Install?
We install and service all major residential brands, including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. That’s not a boilerplate list. Each brand has San Antonio quirks: Trane and American Standard share the same manufacturer and hold up well in extreme heat, Goodman tends to come in at a lower equipment price point, and Daikin’s higher-end variable-speed units are strong for two-story homes with uneven cooling. We’ll give you an honest comparison across brands rather than pushing whatever we have in the warehouse this month.
What’s Included in a Brandt HVAC Installation?
Every Brandt HVAC Co San Antonio installation includes the following, in writing:
- Written, line-item price before work starts – you approve the final number before we touch anything
- Manual J load calculation to size the system correctly for your home’s square footage, insulation, window orientation, and heat gain
- Full system startup and calibration – refrigerant charge by weight and superheat/subcooling measurement, not “good enough”
- Permit handling – we pull the City of San Antonio permit and schedule the inspection
- Haul-away of old equipment – no junk left in your yard
- 365-Day Done Right Promise – if anything about the install isn’t right within 365 days, we return and make it right at no charge. No argument.
- Written guarantee – the specific terms, in writing, before we leave
How Brandt HVAC Approaches Your Installation
Devin Marlowe leads Brandt HVAC Co San Antonio, and the way we run installations flows from a simple idea: you should know exactly who is walking through your door, and exactly what you’re paying, before anything happens. That means when you schedule a visit with us, you get the technician’s name and photo by text before dispatch. When the tech arrives, they show a photo ID badge at the door. That’s the Threshold Verified standard we hold ourselves to. If someone shows up who you weren’t told to expect, that visit is on us and we make it right.
Our phones are answered by a live person 24/7. Not an answering service. Not a callback queue. When you call at 2 a.m. because your AC died in July, a real person answers. That matters for a job this size, because an installation is a conversation, not a transaction. You’ll have questions about sizing, efficiency, rebates, and timing. Someone should answer them when you ask.
The name Brandt comes from an old word for a firebrand, the burning wood that carries heat through a home. We think it fits the work. Keeping a San Antonio home cool in August is the same kind of essential, physical work as keeping one warm in a northern winter. It deserves the same care and the same honesty.
FAQs – AC Installation Cost in San Antonio
How much does a new AC unit cost installed in San Antonio?
Most San Antonio homeowners pay $3,500 – $7,500 for a complete AC installation. A standard 3-ton, 14 – 15 SEER2 system with a gas furnace air handler for a 1,800 – 2,200 square foot home typically lands between $4,500 and $5,800. Call (361) 470-8872 for a free, written, line-item quote for your specific home.
What size AC unit do I need for a 2,000 square foot home in San Antonio?
A 2,000 square foot home in San Antonio typically needs a 3.5-ton system, though insulation quality, window count, ceiling height, and orientation can move that to 3 tons or 4 tons. The only way to know is a Manual J load calculation, which we include with every installation quote. The cost difference between a 3-ton and 4-ton unit is roughly $500 – $900 in equipment.
How much does it cost to replace an AC unit and furnace together?
A combined AC and furnace replacement in San Antonio typically costs $5,500 – $9,500, depending on efficiency. Replacing both at once is usually 15 – 20% cheaper than doing them in separate visits, because you avoid a second permit, a second labor trip, and mismatched coil compatibility. Call (361) 470-8872 for an exact quote, which you’ll get free and in writing.
Can I install my own AC unit in San Antonio?
No. San Antonio requires a mechanical permit pulled by a licensed contractor for any AC installation, and handling refrigerant without EPA Section 608 certification is a federal violation. A DIY install voids the manufacturer warranty immediately. More importantly, a brazed line set and pressurized refrigerant system are genuinely dangerous if done wrong. This is one job where a trained professional is non-negotiable.
Does homeowner’s insurance cover AC replacement in San Antonio?
No. Homeowners insurance covers sudden, accidental damage – a tree falling on your condenser, a lightning strike, a car hitting the unit. It does not cover ordinary wear and tear, which is what kills most San Antonio AC systems after 10 – 14 years of Texas heat. Some home warranty plans cover AC replacement, but they typically cap coverage at $1,500 – $2,000, leaving you to cover the rest.
How much does AC repair cost compared to replacement in San Antonio?
Most AC repairs in San Antonio run $150 – $650. A full system installation runs $3,500 – $7,500. If your system is under 10 years old and the repair is under $600, repair almost always makes sense. If the system is over 15 years old or the repair exceeds $1,500, replacement is usually the better long-term play. We’ll give you an honest recommendation either way, and you’ll have the numbers in writing to decide.
Call Brandt HVAC Co San Antonio for a Free AC Installation Quote
You don’t have to guess what a new AC costs in San Antonio, and you shouldn’t have to open your door to a stranger to find out. Call (361) 470-8872 for a free estimate. You’ll get a live person on the line, a written price before any work begins, and a technician introduced by name and photo before they ever arrive. If the install isn’t done right, the 365-Day Done Right Promise has you covered. That’s the deal, in writing, every time.
Pricing reflects the San Antonio market as of 2026. Brandt HVAC Co San Antonio offers free estimates – call (361) 470-8872. Written by Devin Marlowe, owner at Brandt HVAC Co San Antonio.
What Our Customers Say
"Frozen evaporator coil in July. Cleaned it, replaced a clogged filter, and checked the airflow. Gave me a simple schedule for filters."
- Hannah L."Maintenance plan is simple and the tech showed me the readings, not just said it was fine."
- Maribel C."Condenser fan motor replaced the same day. Clean, quick, and the quote didn't change."
- Lamar R.