Atlas AC Repair, LLC

Air Conditioning Contractor in San Antonio

Trusted Family Owned Air Conditioning Contractor, delivering expert HVAC Services for San Antonio.


Locally Owned, Carrier Factory Authorized Dealer President Award Winner, two years in a row Daikin Comfort Pro NATE Certified HVAC Company

Read San Antonio Homeowners reviews About Atlas AC



Why Homeowners Trust Atlas AC Repair

Choosing a top-rated air-conditioning company in San Antonio can be a challenge. Many homeowners are asking, are they locally owned, do they have certified technicians, do they offer transparent pricing? Not only do we check all the boxes, whether that is Nate Certification, Factory Authorized Dealer, of family owned and operated we also pride ourselves in taking care of our customers as one our own. Here’s what sets up apart from our competitors across San Antonio TX and surrounding areas. To get a more in-depth looks at all of our services and locations see our main page. Atlas AC Repair

  • Top Rated & Reviews: Hundreds of 5-star reviews reflect our commandment to excellence.
  • Family-Owned and Operated: Proudly serving San Antonio with local pride and personal service.
  • Carrier Factory Authorized Dealer: Factory trained and certified by Carrier.
  • Carrier President’s Award Winner: This is the highest award that Carrier gives to exceptional HVAC companies throughout the US.
  • Daikin Comfort Pro: Factory trained and certified by Daikin.
  • Affordable Transparent Pricing: no hidden fees-hones, upfront pricing, online pricing available.
  • Nate Certified: Our technicians are not only air conditioner experts they are also Nate Certified, giving homeowner an extra layer of peace of mind.
  • Education: We believe that a well-educated customer has the ability to make the best decision for their air conditioning needs. Whether you are needing a repair or an AC replacement we spend the extra time to go through all options and solutions to deliver the end result you are looking for.


Air conditioning and Heating Services

Ductwork and Carrier air handler

HVAC Contractor

Atlas AC Repair is a local HVAC contractor expert serving San Antonio and surrounding areas.
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Carrier brand furnace

Heating contractor

Are you looking for a local heating contractor in San Antonio? Atlas AC Repair is a locally owned heating expert servicing Bexar County.
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AC unit cost

Air conditioning repair service

Atlas AC Repair is an expert air conditioning repair service company. Providing fast residential AC repairs for all air conditioning brands and ages.
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Furnace heater

Furnace repair service

As temperatures drop, homeowners rely on their heating systems to keep indoor spaces warm and inviting. Our specialists tailor their services to the local climate and residential requirements.
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AC Repairs in San Antonio

We handle AC repair calls for homeowners across San Antonio. But the calls really jump between May and September. That’s when systems work hardest, running without a break for hours. What do we typically find on these urgent visits?

  • – A dead AC capacitor. That kills the outdoor unit completely.
  • – A frozen evaporator coil. This happens from poor airflow or low refrigerant.
  • – A tripped circuit breaker. Often, a failing compressor draws too much power.
  • – A clogged condensate drain. That trips the safety float switch every time.

A common thing we see is homeowners trying to reset their breaker multiple times before calling us (don’t do that). Repeated resets can just cause more serious damage to the unit. If the breaker trips twice, it’s a sign to stop trying and call us for AC repair. We’re here to help.

Older San Antonio homes, especially systems over 10-12 years old, are more likely to break down during heat waves. Running 14 or more hours a day simply wears parts out. We carry many common replacement parts right on our trucks. This means we can often finish repairs on the first trip, getting your house cool again quickly.

We offer a free estimate before we start any work. You get straightforward answers about what failed and what it costs. No surprises. Just honest help for your home. Call us at (210) 549-9550 when your AC system stops working.



New AC System Installation

If your San Antonio home has never had central air, or if you’re building a new room, AC installation starts from scratch. It’s different from just replacing an existing setup. We size the ductwork properly, pick the right unit size for your home’s square footage, and make sure your electrical panel can handle the new load. We’ve seen plenty of San Antonio homes built before the 1970s that have no ductwork at all. That pops up often in areas like the northern suburbs starting at Leon Springs down to Robin Hill and from Alamo Ranch to Selma.

Homeowners often misjudge the size of AC system they need. An oversized unit cycles on and off too fast, never really getting the humidity out of your air (that’s key in San Antonio). A unit that’s too small will run nonstop in July and still can’t keep your family comfortable. We perform a detailed Manual J load calculation for every new installation. This calculation considers your home’s insulation, window placement, ceiling heights, and how much sun hits your house. It helps us get it right.

Here’s what a typical new AC system installation involves:

  • – A Manual J load calculation to pinpoint the correct system size.
  • – Careful placement of the indoor evaporator coil and air handler.
  • – Proper setup of the outdoor condensing unit on a level pad.
  • – Refrigerant line routing and secure electrical connections.
  • – Thermostat installation and thorough system testing.

We hold a Texas ACR license (TACLB00153401E). Every install meets local building code. And we pull permits when they’re required by the city. We don’t skip steps.

If you’re unsure if you need a brand new installation or just a replacement of your current setup, we can help. Call us for a free estimate. We’ll walk through your home, educate you on the options, and tell you exactly what’s needed for your specific situation. You’ll get upfront pricing on both air conditioning and heating repairs and new installations along with free estimates.




Full AC Unit Replacement

Sometimes, putting more money into an old AC unit just doesn’t make sense anymore. If your system is 15 years old and needs a big repair, putting that money toward an AC Replacement is often the smarter financial move. We see this often in San Antonio homes built in the early 2000s; the original equipment has worked incredibly hard through twenty hot Texas summers, and it shows the wear.

AC replacement means we take out the entire outdoor condensing unit and the indoor evaporator coil. Then, we install a matched system. A matched system really does matter more than most homeowners realize. Mixing an old coil with a new outdoor unit, for example, can drop efficiency way down and sometimes even void the manufacturer’s coverage on the new equipment. We only use matched systems to get it right for your home.

Here are clear signs it might be time for AC Replacement:

  • – Your system uses R-22 refrigerant. That chemical is no longer made.
  • – Repair costs are getting close to half the price of a brand new unit.
  • – Your energy bills keep climbing, even after regular maintenance.
  • – The system runs constantly, but your house never cools evenly.

We manage the full process, from properly sizing your new unit to pulling any needed permits. Sizing is where many installations go wrong, by the way. An oversized unit cycles too quickly, creates humidity problems, and wears out faster than it should. We do a Manual J load calculation for every home before we recommend any equipment. It’s a key part of our process.

And we offer a free estimate so you can look at all your options without any pressure. We have no salespeople, only industry experts. You’ll get Transparent Pricing. Give us a call at (210) 549-9550 to get started on your AC Replacement.

Ready when you are – get in touch today

(210) 549-9550

Get a Free Estimate.  Atlas AC Repair is ready to help



Seasonal AC Maintenance Visits

San Antonio summers really push AC systems. They run hard, for months without a break. A seasonal AC maintenance visit helps catch small issues before they become expensive repairs right in the middle of July. We usually schedule these visits in the spring and fall. That way, your system is ready for the heavy workload ahead.

During a maintenance visit, we check refrigerant levels, test electrical connections, and inspect the blower motor. We also clean the condensate drain line. Clogged drain lines are one of the most frequent problems we see in San Antonio homes, particularly in older houses toward the Medical Center. The humidity here creates buildup quickly, and many homeowners don’t notice until water starts pooling around the indoor unit. It’s a common mess.

Here’s what a typical seasonal AC maintenance visit covers:

  • ✅ Thermostat calibration. We test the system’s cycling.
  • ✅ Inspecting both the condenser and evaporator coils.
  • ✅ Checking refrigerant pressure.
  • ✅ Testing electrical components, including capacitors and contactors.
  • ✅ A thorough condensate drain flush.

One thing we often find is dirty air filters. Many haven’t been changed in six months or more. That alone makes your system work much harder and drives up your electric bill. A lot of homeowners call, thinking something is seriously broken, when the real fix takes about two minutes. We educate, not sell.

We offer a free estimate if we find anything needing more than routine AC maintenance. You get a clear explanation of what we found and what it would cost to fix it. We believe in Transparent Pricing. Call us to Schedule Your APA (Annual Performance Agreement) for consistent care. You can also visit our website to Shop Now and Build Your Own AC System online for an AC Replacement.



Spring AC Tune Up Service

San Antonio heat doesn’t ease in gently. It hits fast, usually by late April. Getting an AC tune up before that first truly hot stretch is the single best thing you can do for your system each year. It really is.

During an AC tune up, we check refrigerant levels and test the capacitor. We inspect the contactor and clean the condensate drain line. We also measure airflow across the evaporator coil. We hear from lots of homeowners in June whose systems can’t keep up. About half the time, the fix was something we would have caught early, back in March. That’s why we emphasize upfront maintenance.

Here’s what a typical AC tune up covers:

  • ✅ Calibrating the thermostat. We test its cycling.
  • ✅ Tightening electrical connections. We check voltage too.
  • ✅ Flushing the condensate drain to stop water damage.
  • ✅ Reading refrigerant pressure.
  • ✅ A visual check of the outdoor condensing coil.

A big thing we constantly see is outdoor units packed with cottonwood fuzz and dirt. That buildup forces the compressor to work harder than it should. It runs longer cycles, your electric bill climbs, and parts wear out faster. A spring AC tune up spots that early. It prevents bigger issues later on.

We offer a free estimate if your system needs more than just routine maintenance. Most tune ups take about an hour. But that hour can keep you from a breakdown on a 104-degree Saturday in July, which is worth it. Call us at (210) 549-9550 to schedule yours. Don’t wait until it’s too late!




AC Troubleshooting and Diagnostics

Your AC is acting strange. Maybe it’s blowing warm air. Perhaps it cycles on and off every few minutes. Maybe there’s a weird smell from the vents. Before you consider replacing anything, you need to know the problem. That’s what AC troubleshooting is all about.

We follow a step-by-step diagnostic process on every call. Here’s what we typically check:

  • ✅ Thermostat settings and wiring.
  • ✅ Refrigerant pressure readings. We check both high and low sides.
  • ✅ Electrical connections. We look at the disconnect, contactor, and capacitor.
  • ✅ Airflow across the evaporator coil.
  • ✅ Amp draw on the compressor and blower motor.

Many San Antonio homeowners call us after trying a few things themselves. Changing the filter is a good first step, but it won’t fix everything. We see plenty of systems where the real issue is a slow refrigerant leak or a failing capacitor, causing the unit to short cycle. Those problems don’t show obvious signs unless you have the right gauges and a multimeter on the unit. We’re industry experts; we use the right tools.

I’d say about half of our diagnostic calls turn out to be something small. Maybe a tripped float switch from a clogged drain line. Or a blown fuse in the disconnect box. The other half uncover bigger issues that need a specific repair, and that’s okay, we’re ready for those too.

Either way, we provide a free estimate before any work starts. No guessing, no surprises, just Transparent Pricing. We educate you on the problem and the solution so you can make the best decision for your family. Request an In-Person Visit or call us today.

Atlas AC Repair technician installing Carrier Infinity Condenser

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Atlas AC Tech working on an AC Unit

Freon Recharge for Low Refrigerant

Your AC doesn’t use up refrigerant like gas in a car. If it’s low, that means there’s a leak somewhere in the system. That’s the very first thing we look for during a freon recharge call here in San Antonio. Most homeowners reach out because the system runs nonstop, but the house never gets below 80 degrees, even if the thermostat is set lower.

We get more calls about low refrigerant than anything else during June and July. Homeowners often try turning the thermostat even lower, thinking it will help. It won’t work. Low refrigerant means the system can’t properly absorb heat from inside your home. So it just blows lukewarm air, no matter the thermostat setting. It’s frustrating, we know.

Here’s what a freon recharge visit looks like:

  • ✅ We measure refrigerant levels. Gauges connect to your system’s service ports.
  • ✅ We inspect the evaporator coil and line set. We look for oil stains, which can signal a leak.
  • ✅ We add the correct refrigerant type and amount. This is based on your system’s exact specifications.
  • ✅ We recheck pressures. We monitor temperature output at the vents.

One thing worth knowing for homeowners: older systems use R-22 refrigerant. This has been phased out, and it costs a lot more now. If your system still runs on R-22, a freon recharge might make sense for a short time. However, an AC Replacement could save you money in the long run. We’ll walk you through both options during your free estimate, giving you all the facts.

We see refrigerant leaks at the evaporator coil more often than anywhere else on San Antonio homes. These coils corrode over time from moisture and chemical exposure, especially in hot attic spaces common in our area.



AC Compressor Replacement

The compressor is basically the heart of your AC system. It’s what pumps refrigerant between your indoor and outdoor units. When it stops working, you get warm air, and a system that just runs and runs without cooling your home at all. It’s a real problem.

We see plenty of compressor failures in San Antonio during July and August. The unit has often been working incredibly hard for weeks. Then, one day, it simply stops. Sometimes you’ll hear a distinct clicking sound from the outdoor unit. Other times, the breaker just keeps tripping. Both are clear signs your compressor is in trouble.

A common mistake homeowners make before calling us is resetting the breaker over and over again. This can cause more damage. If your breaker trips twice, it’s time to leave it off and call us for a proper diagnosis. We’re here to help, not judge.

During an AC compressor replacement, we check several things beyond just swapping the part:

  • ✅ The refrigerant charge and line condition.
  • ✅ All electrical connections at the contactor and capacitor.
  • ✅ The condenser coil condition for any airflow restrictions.
  • ✅ System pressures after the new compressor is running smoothly.

A compressor replacement is one of the larger repairs you might need on an AC system. In some situations, a full AC Replacement makes more sense. This depends a lot on the age of your existing equipment, you know. We’ll walk you through both options during your free estimate. That way, you can decide what fits your family’s situation and budget. For this particular repair, getting the diagnosis right is the most important thing. A wrong diagnosis means wasted money and frustration.

A look inside a condenser, the outdoor unit of a split air conditioning or heat pump system, which houses the compressor.


Condensate Drain Line Cleaning

Your AC pulls moisture right out of the air every time it runs. That moisture drips into a pan, then flows out through a small drain line. Here in San Antonio’s humidity, algae and mold can build up inside that line very quickly. A clogged condensate drain is one of the most common reasons we see water pooling around indoor units. It causes real headaches for homeowners.

Most homeowners don’t even know the drain line exists until there’s a problem, believe it or not. Here’s what a clog can cause:

  • ❌ Water damage to your drywall, flooring, or even ceilings.
  • ❌ A musty smell coming from your home’s vents.
  • ❌ Your system shutting off because of the float switch.
  • ❌ Mold growth inside the drain pan itself.

We clear the line, flush it thoroughly, and then check the pan for any cracks or rust. In older homes, particularly around the Alamo Heights area, we often find drain lines routed in ways that make clogs happen more often. A simple cleaning twice a year prevents most of these issues. It saves a lot of trouble.

One thing we notice a lot on San Antonio service calls is homeowners trying to pour bleach down the line themselves. That can offer short-term help, but it usually doesn’t clear a full blockage. And if the line is already backed up, the bleach just sits there, it can’t do its job. We use a wet-dry vacuum and compressed nitrogen to effectively remove the buildup. That’s the correct way to get it really clean.

Condensate drain cleaning is part of our routine AC maintenance, but we also offer it as a standalone service. Give us a call at (210) 549-9550 for a free estimate before a small clog turns into a much bigger repair and expense for your family.

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Home AC System Inspection

An AC inspection is a full, head-to-toe look at your system. We check electrical connections, refrigerant levels, airflow, thermostat accuracy, and the general condition of every major part. It’s not just a quick glance. It’s a structured process, and it tells you exactly where your system stands today.

Most San Antonio homeowners call for an AC inspection when something just feels off, but they can’t quite put their finger on it. Maybe one room stays warmer than others. Perhaps the system runs longer than it used to. These are genuine signs worth investigating.

Here’s what we typically find during inspections:

  • Capacitors starting to weaken, but not totally failed yet.
  • Condensate drain lines partially clogged with algae buildup.
  • Dirty evaporator coils reducing the system’s cooling output.
  • Loose electrical terminals. These could trip a breaker at the worst time.

Catching these things early saves you from a total breakdown on a 103-degree afternoon. That’s the real benefit. Many homeowners wait until the system completely stops working. Then, they pay more for an emergency visit. An inspection before summer gives you time to plan and get things fixed. It’s a much smarter approach.

We’ve been licensed HVAC contractors in Texas since 2020 (TACLB00153401E). Every AC inspection we do comes with a free estimate if any repairs are needed. You get no pressure to fix anything on the spot, just a clear picture of what’s happening inside your unit. You can also visit our website to Shop Now or Build Your Own AC System online.

(210) 549-9550



Providing AC Services to San Antonio

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Frequently Asked Questions

Common questions about Air conditioning contractor in San Antonio

How fast can you get to my house for emergency AC repair in San Antonio?

We answer emergency calls every day of the year, including nights and weekends. Most trucks carry common parts like capacitors and drain switches, so we often fix the problem on the first visit. Calls spike between May and September when systems run hardest. Call us right away instead of resetting your breaker more than once.

Why do older San Antonio homes have more AC problems?

Homes built before the 1970s, especially in areas like Leon Springs and Alamo Ranch, often lack proper ductwork or have systems over 10-12 years old. These units run 14 or more hours a day during summer, which wears out parts fast. That’s why breakdowns happen more during heat waves in these older neighborhoods.

How do I know if I need AC repair or a full replacement?

If your system is under 10 years old and the repair is minor, repair is usually the right call. If it’s 15 years or older, uses R-22 refrigerant, or the repair cost is close to half a new unit’s price, replacement makes more sense. We give you a free estimate so you can decide with clear facts, not guesswork.

How often should I schedule AC maintenance in San Antonio?

Twice a year works best, once in spring and once in fall. This gets your system ready before the heavy summer workload and catches small issues before July heat makes them worse. Clogged condensate drain lines are one of the most common problems we find during these visits, especially in older homes.

What size AC unit does my San Antonio home need?

The right size depends on your home’s square footage, insulation, and window placement, not just a guess. We run a Manual J load calculation for every installation or replacement to get this right. An oversized unit leaves your home humid, while an undersized one runs nonstop and still can’t keep up in July.

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