Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateTrusted AC Repair for San Antonio Homeowners
When your air conditioner fails in San Antonio’s July heat, the problem isn’t just comfort – it’s safety. Brandt HVAC Co San Antonio has repaired residential cooling systems across the city for over two decades, with a name built on a simple promise: you’ll know exactly who’s walking through your door. Before any technician arrives, you receive their name and photo. At the door, they show a photo ID badge. The price is written down before any work begins, and every repair carries a written guarantee. When your AC stops cooling and you need help now, call (361) 470-8872.
Key Takeaways
- Most AC repairs in San Antonio cost between $150 and $650, including parts and labor, written down before work starts.
- Every Brandt HVAC technician is background-checked and identity-verified under the Threshold Verified standard. You’re told who is coming, by name and photo, before arrival.
- A live person answers our phones 24/7. No voicemail, no callbacks, no phone trees.
- Every repair includes a written guarantee, and if it fails within the coverage period, we return free under the 365-Day Done Right Promise.
- Same-day repair appointments are available across San Antonio, including Alamo Heights, Terrell Hills, and Castle Hills.
Styles & brands we work with






AC Service
AC Service is the general term for professional attention to a residential cooling system – diagnosis, repair, or maintenance – and most San Antonio homeowners need it once a year at minimum, more often if the unit is older than ten years. Brandt HVAC Co San Antonio handles everything from a routine checkup to a full repair, and every service call starts with a written price before any work happens. You’ll see the total cost in dollars, parts and labor, before you approve a single thing. Depending on what’s found, a typical AC Repair in San Antonio call runs from $150 to $650.
Seasonal Tune-Up Checks
Before the first 95-degree week hits, a full AC service visit should confirm your refrigerant level, measure the temperature drop across the coil, and test the capacitor’s microfarad rating. In San Antonio’s climate, a system that runs eight months of the year wears through components faster than one that runs four. Catching a weak capacitor in April costs far less than losing cooling entirely in August.
Diagnostic Service Calls
When your system makes noise, short-cycles, or simply won’t start, a diagnostic AC service call gives you answers in plain language. We tell you what failed, what it costs to fix, and what the repair guarantee covers. No jargon, no pressure – just the facts, in writing.
AC Unit Repair
AC Unit Repair is what happens when a specific component inside your condenser or air handler fails – a compressor, a fan motor, a control board, a contactor – and the unit can’t cool properly anymore. In greater San Antonio, most repair calls land in the $150 to $650 range, but the number depends entirely on which part failed and whether the unit takes standard or specialty components. At Brandt HVAC Co San Antonio, we diagnose the fault, show you the failed part if you want to see it, and hand you a written price before any tool comes out.
Diagnosing Before Replacing
The biggest mistake in AC unit repair is replacing parts without confirming the failure. We test components with a multimeter – checking continuity, resistance, and voltage – before recommending anything. If a capacitor reads within 6% of its rated microfarads, it’s not your problem, and we won’t sell you one.
Repair Versus Replacement Calls
Some repairs don’t make financial sense, and we’ll tell you when that’s true. If a compressor fails on a 14-year-old system with a leaking coil, a repair might cost more than its remaining useful life justifies. We’ll walk you through the numbers honestly so you can decide with your head, not under pressure.
AC Capacitor Replacement
AC Capacitor Replacement is one of the most common repairs we make in San Antonio, where heat and humidity push capacitors hard all summer long. The capacitor stores and releases the electrical charge that starts your compressor and fan motor, and when it fails, your outside unit typically hums but doesn’t run. In most cases, an AC capacitor replacement runs $150 to $350, parts and labor included – less than most repair tickets, but urgent because a failed capacitor left running can damage the compressor itself. Brandt HVAC Co San Antonio stocks capacitors for most major brands on our service trucks.
Signs of a Failing Capacitor
You might notice the unit struggling to start, a humming noise from the condenser, or the fan spinning slower than it should. Some capacitors visibly bulge or leak before they fail outright. If your system starts sometimes but not others, a weak capacitor is often the culprit – and it’s a small fix now versus a big one later.
Replacement and Testing
We don’t just swap the part and leave. After installing a new capacitor, we test the system through a full cycle, measure startup amperage, and confirm both fan and compressor are running within spec. You get a written guarantee on the repair, and if the capacitor fails within the coverage period, the second visit is free.
AC Recharge
AC Recharge means refilling the refrigerant – the fluid that moves heat out of your home – to the level specified by the manufacturer. When refrigerant runs low, your AC runs longer, cools less, and costs more to operate. In San Antonio, an AC recharge typically runs $200 to $400 depending on how much refrigerant is needed and whether leak detection is required. At Brandt HVAC Co San Antonio, we don’t just top off the system and leave. We check for a leak first, because refrigerant doesn’t burn off – it escapes through a hole, and that hole gets bigger.
Leak Detection First
If your system is low on refrigerant, there’s a leak somewhere, and adding refrigerant without finding it is like airing up a tire with a nail in it. We use electronic leak detectors and dye testing to pinpoint the source, then give you a written price to repair the leak and recharge the system correctly.
Manufacturer Spec Recharging
Every system has a factory-specified refrigerant charge, usually measured in pounds and ounces. We charge to that exact spec, not to a guess. Overcharging reduces efficiency and can damage the compressor; undercharging leaves you with weak cooling and higher bills. We get it right the first time, and the repair is guaranteed in writing.
Emergency AC Repair
Emergency AC Repair is what you need when your cooling fails completely and waiting isn’t an option – a 104-degree afternoon, a newborn in the house, an elderly parent on medication that makes heat dangerous. In San Antonio, nights stay above 80 degrees from June through September, which means a dead AC is a health risk, not an inconvenience. Brandt HVAC Co San Antonio answers every call with a live person, 24 hours a day, 7 days a week, and we dispatch emergency repair trucks across the city. Emergency AC repair pricing runs the same $150 to $650 range as standard repairs, with no overtime surcharge on the labor.
What Counts as an Emergency
No cooling at all, a burning smell from the unit, water pouring through the ceiling from a clogged condensate line, or a system that trips its breaker repeatedly. If you’re unsure, call us. We’ll ask a few questions and tell you honestly whether it can wait until morning or whether we should send someone now.
Our Emergency Response
When you call for emergency AC help around Schertz or anywhere in the San Antonio area, you’ll speak to a person, not a recording. We tell you when the technician will arrive, and we send you their name and photo before they roll up. At the door, they’ll show you a photo ID badge. The written price comes before any work, even on emergency calls.
AC Not Blowing Cold Air
AC Not Blowing Cold Air is the most common complaint we hear in San Antonio, and it has at least eight different possible causes – low refrigerant, a dead capacitor, a clogged air filter, a failed thermostat, a frozen coil, a tripped breaker, a bad contactor, or a blocked condensate line. The fix could cost $150 or $650, depending on what’s actually wrong. At Brandt HVAC Co San Antonio, we diagnose the root cause and show you the evidence before we recommend a repair. No guesswork, no parts-swapping, just a written price and a clear explanation.
First Things to Check Yourself
Before you call, check the obvious: the thermostat is set to cool, the air filter isn’t caked with dust, and the breaker hasn’t tripped. If the filter is dirty, replace it and give the system an hour. If the outside unit is running but the air still feels warm, you likely have a refrigerant or compressor issue – that’s a technician call, not a DIY fix.
When the Problem Is Bigger
If the unit runs constantly but the house doesn’t cool, you may be low on refrigerant or have a failing compressor. If the system short-cycles – turns on for five minutes, then off – the problem is usually electrical. Either way, continuing to run a struggling system increases the damage and the repair bill. Call (361) 470-8872 and we’ll get it diagnosed properly.
Brands We Service
Brandt HVAC Co San Antonio services all major residential HVAC brands, and our trucks carry parts for the systems we see most. We work regularly on Rheem and York equipment – two of the most common brands in San Antonio homes – and our technicians know their pressure curves, control board layouts, and common failure points from thousands of service calls. Whether you have a Rheem condenser on a slab foundation in Windcrest or a York heat pump in Bulverde, we diagnose it accurately the first time.
We also service Daikin and Bryant systems, along with Carrier, Trane, Lennox, Goodman, and American Standard. If you’re running an older Bryant unit in Cibolo or a newer Daikin inverter system in Boerne, we carry or can source the OEM parts and we know how to work on the equipment properly. Whether your system wears a badge from Rheem, York, Daikin, Bryant, or any other make, we can help – and every repair comes with a written guarantee.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Warm air, not cool air. If the air coming from your vents feels lukewarm even after the system runs for ten minutes, the system isn’t transferring heat. Running it this way wastes electricity and strains the compressor, turning a $150 fix into a $650 problem if you wait.
- Constant running without temperature change. When your AC never cycles off and the house stays warm, the system is working hard and accomplishing nothing. The cause is usually low refrigerant or poor airflow, and both get worse the longer they’re ignored.
- Strange sounds – grinding, screeching, or banging. A screech on startup often means a failing fan motor bearing. A grinding noise can signal a compressor on its way out. These sounds don’t fix themselves, and waiting usually means replacing a more expensive part than you would have otherwise.
- Water or refrigerant stains around the indoor unit. A clogged condensate line backs up water, which can damage drywall, flooring, and the air handler itself. If you see water pooling or a refrigerant oil stain near the unit, shut it off and call a professional.
- Electrical symptoms – tripped breakers or burning smells. A circuit breaker that trips once might be a fluke. Twice means the system is drawing too much current. A burning or metallic smell is an immediate concern. Shut the system off at the breaker and call us right away.
Our Process, Step by Step
- 1
You call, a person answers. No phone trees, no voicemail, no “your call is important to us” recording. A live person at Brandt HVAC Co San Antonio takes your information, asks about the symptoms, and schedules a time that works for you – including same-day if the situation is urgent.
- 2
You receive your technician’s name and photo. Before we arrive, you’ll know exactly who is coming – their name, their photo, and when to expect them. That’s the Threshold Verified standard at work. If anyone arrives who you were not told to expect, that visit is on us, and we make it right.
- 3
Diagnosis with real instruments. The technician tests the system with a digital multimeter, manifold gauges, and a non-contact thermometer at the supply and return vents. You’ll see the readings if you want to, and the diagnosis will be explained in plain language – what failed, why it failed, and what the options are.
- 4
A written price before any work. You approve the repair on paper before a single tool touches the unit. The price includes parts and labor, and it doesn’t change unless you approve a change in scope in advance. No surprises on the invoice, ever.
- 5
Repair, test, and guarantee. After the repair, the technician runs the system through a full cooling cycle, verifies the temperature drop, and walks you through what was done. You get a written guarantee stating exactly what’s covered and for how long. If the repair fails within the coverage period, the second visit is free under the 365-Day Done Right Promise.
How Much Does AC Repair Cost in San Antonio?
A typical AC repair in San Antonio runs $150 to $650 depending on what failed and what it takes to fix it. A capacitor replacement usually lands in the $150 to $350 range. A refrigerant leak repair with recharge typically costs $200 to $450. A failed fan motor, contactor, or control board often lands between $300 and $650. These are real numbers from the San Antonio market – not estimates designed to get a technician in the door.
What affects the price? The part itself – a Rheem OEM capacitor costs more than a generic, and we’ll tell you the difference and let you choose. The age of the system matters too: units older than 12 years sometimes require parts that are harder to source. Accessibility is a factor – a condenser squeezed into a tight side yard takes longer to work on than one with open access. And refrigerant type matters: older R-22 systems cost significantly more to recharge than newer R-410A units because R-22 has been phased out and is increasingly scarce.
How do you avoid overpaying? Get the diagnosis in writing with the specific part named, understand exactly what the repair covers, and ask about the guarantee length. A company that won’t write down the price before starting work is a red flag. At Brandt HVAC Co San Antonio, a free estimate means a written price with no obligation – you’ll know the exact cost before you decide anything.
Our Service Area Near San Antonio
Brandt HVAC Co San Antonio provides AC repair across the greater San Antonio area, with typical response times under 90 minutes for most neighborhoods inside Loop 1604. We serve Alamo Heights, Terrell Hills, Castle Hills, Windcrest, and Kirby regularly, and we extend to Boerne, Bulverde, Floresville, Lackland AFB, and beyond. For homeowners near the northeast side, our home service area also covers AC Repair in Schertz and AC Repair in Cibolo. If you’re not sure whether we serve your street, call and ask – a live person will tell you.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About AC Repair in San Antonio
AC repair is the diagnosis and correction of any fault that keeps a residential cooling system from working correctly – from a failed capacitor to a refrigerant leak to a dead compressor. In San Antonio, where air conditioning runs most of the year, AC repair ranges from $150 to $650 depending on the part and labor involved. At Brandt HVAC Co San Antonio, every repair starts with a written price and ends with a written guarantee.
Most AC repairs in San Antonio are completed in one to three hours from arrival to testing. A capacitor replacement takes about an hour; a refrigerant leak repair might take two to three hours including leak detection and recharge. If a part needs to be ordered, we’ll tell you when it will arrive and schedule the installation for a time that works for you.
AC repair in San Antonio typically runs $150 to $650, with capacitor replacements on the lower end and compressor or control board work on the higher end. The written price you receive from Brandt HVAC Co San Antonio includes all parts and labor, and it doesn’t change unless you approve a change in scope. Call (361) 470-8872 for an exact quote – estimates are free.
Yes. We service all major residential brands including Rheem, York, Daikin, Bryant, Carrier, Trane, Lennox, Goodman, and American Standard. Our trucks carry common OEM parts for the brands we see most, and we can source specialty parts for any residential system in the San Antonio area.
Yes. Brandt HVAC Co San Antonio answers phones with a live person 24 hours a day, 7 days a week, including nights, weekends, and holidays, and we dispatch emergency repair technicians across the San Antonio area. Emergency repair pricing is the same $150 to $650 range as standard repair, with no overtime labor surcharge. Call (361) 470-8872 if you need help now.
Every repair from Brandt HVAC Co San Antonio includes a written guarantee that states exactly what’s covered and for how long. If a repair fails within the guarantee period, we return at no charge under the 365-Day Done Right Promise. No argument, no additional fee, no fine print.
Clear the area around your indoor and outdoor units so the technician has room to work, check your air filter and replace it if it’s dirty, and note any symptoms you’ve noticed – sounds, smells, thermostat readings. When the technician arrives, ask to see their photo ID badge. You’ll know who’s coming before they arrive because we send the name and photo in advance.
Schedule Your AC Repair Service in San Antonio Today
When your AC isn’t cooling, every hour matters – and you shouldn’t have to wonder who’s coming to fix it. Call Brandt HVAC Co San Antonio at (361) 470-8872 for a free, no-obligation estimate with a written price before any work starts. Our phones are answered by a live person 24/7, and every technician is background-checked, identity-verified, and introduced before arrival. Same-day service is available across San Antonio.
Written by Devin Marlowe, Owner at Brandt HVAC Co San Antonio, serving San Antonio since 2003.