Trusted Air Conditioning Repair Service in San Antonio
Good air conditioning repair service in San Antonio should start with a straight diagnosis, never a sales script. We’re licensed and insured, TACLB77198E, and real people answer 24/7, day or night.
Factory Trained & Authorized
You’re the reason we work so hard
Northwest San Antonio
Lloyd Patrice was very prompt, professional & very friendly. I felt at ease the whole time he was here. He left to get a part we needed & was fast to come back. Replaced the part, retested, all is good. He’s definitely a keeper & always welcome in our home to do our repairs. Thank you
Helotes
Loyd was a great technician. I have a home warranty so that always seems to require waiting on them. The crew from absolute Zero Heating & Air Conditioning were great. They quickly diagnosed the problem, worked with the home warranty and
Leon Valley
Lloyd was amazing. He was so helpful and made sure to get the job done as soon as possible
Boerne
Lloyd Patrice fr9m Absolute Zero is the BEST!! He knew what the issues were on day 1 and his followup, communication, knowledge and customer service were so much appreciated. He did everything possible to get my a/c working again. I am most grateful and will recommend to anyone and everyone. Thanks Lloyd!
Converse
Very professional and courteous. Respectful of property. Explained worked performed and detailed results.
Schertz
First had them service my ac in December of 2023, Lloyd was courteous, knowledgeable and efficient. He came back may 2024 to recheck freon levels and again Lloyd was a wonderful tech. He told me what to do to keep unit running efficiently…
Cibolo
Very professional and friendly, explained everything they did and gave us several hints on maintaining our system. Would definitely use them again.
New Braunfels
Your Air Conditioning Contractor for Cooling Work
Nothing like other companies
We’re the air conditioning contractor for warm air, frozen coils, dead capacitors, and changeouts.
When we say we’ll be right over, we mean it
Heating Contractor Services for Winter Calls
If it can be fixed, we’ll fix it
Heating contractor calls cluster into a short cold stretch here, so we’ve got the common parts on the truck.
Local businesses need that same steady heat. We service rooftop units for shops, offices, and restaurants across the northwest side, and we’ll schedule after hours so your customers never feel the work happening. The owner built hospital generators before he ever touched HVAC, so uptime isn’t a new idea here.
Experienced Techs, No Sales Pressure
to do the right thing
Easy Appointments
Our idea of doing the right thing starts from the moment you pick up the phone. You’ll never have to chase us for an appointment, and when we say sell, be right over we’re not kidding.
1
No Salespeople
Pushy people trying to earn a commission are the last thing you need when something breaks. We’ll shoot you straight, explain your options, and take the time to answer your questions.
2
Plain English
You shouldn’t need a dictionary to understand us. Instead of complicating everything, you’ll get straight answers and paperwork that makes sense no matter how big or small your job is.
3
Guaranteed Work
We think doing the right thing is something you should have to ask for. Our factory-trained technicians do it right the first time, and if something goes wrong, we’ll make it right.
4
Maintenance Plans That Stop Breakdowns
Year-round comfort you can afford
Plan members get two visits a year, spring and fall, plus priority scheduling. We’ll clean the coils, flush the condensate line, and catch small failures before July finds them.
Good
$29 / month
Better
$199 / semi-annually
Best
$399 / year
Why gamble on comfort if you can have a sure thing?
Gamble at the casino, not your living room. For 15 years we’ve been earning San Antonio’s trust one customer at a time. See the difference plain English and hard work make when it counts.
Frequently Asked Questions We Hear Every Week
Questions & Answers
The price of an AC repair in San Antonio tracks five things: the part that failed, the size of the unit, whether that part is still under warranty, how much refrigerant the system needs, and how hard the equipment is to reach. A capacitor swap on a garage-level air handler is a short visit. A compressor or coil job on an attic system takes longer and costs more. Peak summer and after-hours calls run higher than a scheduled weekday visit. Absolute Zero Heating & Air Conditioning diagnoses the system first and explains your options before any work starts.
Most air conditioners in San Antonio last 10 to 15 years, and the heat is why that range sits on the low side. The city logged 58 days at or above 100 degrees in 2022 and a record 75 in 2023, and every one of those days is runtime on a compressor. Homes that get maintenance twice a year usually reach the top of that range. Builder-grade equipment in newer areas like Alamo Ranch often starts failing around year eight.
A system that runs without cooling usually has a refrigerant leak, a dirty or frozen evaporator coil, a failed capacitor, or a condenser fan that quit. Start with the easy checks, because a clogged filter or a tripped breaker causes plenty of San Antonio no-cool calls in July. If the outdoor unit hums but the fan isn’t spinning, shut the system off so the compressor doesn’t cook. Then call a tech, since refrigerant work is licensed work in Texas.
Twice a year is the honest answer for San Antonio, once before cooling season and once before winter. Cooling weather here stretches across most of the year, so coils load up with dust and drain lines need flushing. Mountain cedar season, December into early February, packs a filter faster than any other stretch, which is what makes the fall visit worth booking. Maintenance plan members with Absolute Zero get both visits on the calendar so neither one gets skipped.
Two scheduled visits a year, one in spring before cooling season and one in fall before the first cold front. Each visit covers coil cleaning, a condensate drain flush, capacitor testing, and a look at the filter and the thermostat. Members also get priority scheduling, so the work lands before peak season instead of during it. The whole point is catching a tired part in April rather than losing the system on an August afternoon. Ask any Absolute Zero tech to add your house to the plan while they’re on site.
Often yes, depending on how full the day’s route already is. Real people answer the phone 24/7, and two two-man crews work San Antonio no-cool calls in as early as they can. During a July heat wave the board fills up fast, so we’ll tell you honestly when a truck can get there instead of promising a window we can’t hold. Nights, weekends, and holidays are covered too, because a dead compressor in August isn’t a Monday problem.
High summer bills in San Antonio usually trace to a system working harder than it should: low refrigerant, leaking attic ducts, a dirty coil, or an aging unit with a low SEER2 rating. An attic here can sit above 130 degrees in August, so any leak in that ductwork dumps cooled air where nobody lives. Sealing ducts and correcting the refrigerant charge often drops runtime right away. If the equipment is near the end of its life, CPS Energy pays HVAC rebates of $90-$310 per cooling ton on qualifying replacements, tiered by SEER2.
Yes. Texas requires an air conditioning and refrigeration contractor license for this work, and any homeowner can look a number up at tdlr.texas.gov. Absolute Zero holds TACLB77198E, a Class B license covering residential and light commercial systems up to 25 tons of cooling. The company is insured as well, and it has served San Antonio since 2011.
Check the Texas license number first, then look at how the company handles diagnosis. A good San Antonio HVAC contractor tells you what failed and why before anyone talks about replacement. Ask whether after-hours calls reach a person, ask what the guarantee covers, and read reviews for repeat customers instead of one-time installs. Absolute Zero has over 90 five-star Google reviews and stands behind the work with a satisfaction guarantee.
The install matters more. Sizing, ductwork, and airflow decide whether any brand ever reaches its rating in a San Antonio home, so all three get checked before a model is picked. Absolute Zero installs and services Goodman, Carrier, Trane, and American Standard, and all four lines are common in South Texas, which makes parts easier to source when something fails mid-summer.
It does, mostly in the condensate system. San Antonio water from SAWS runs 15 to 20 grains per gallon of hardness off the Edwards and Trinity aquifers, and that calcium scales drain lines, pans, and evaporative equipment. Clogged condensate drains are one of the most common summer calls on the northwest side, and a backed-up pan can shut a system down or stain a ceiling. Flushing the drain line at every maintenance visit keeps it moving.
Did you know?
Air conditioning wasn’t invented to cool people. In 1902 Willis Carrier built the first modern system for a Brooklyn printing plant. He was pulling humidity out of the air so the ink would quit smearing. Comfort was a side effect.
Because details matter
Air Conditioning Contractor
Your AC quits on a Tuesday afternoon and the house is already sitting at 84. Real people answer 24/7, so that call gets picked up. Techs test the capacitor, contactor, refrigerant charge, and airflow before anyone talks about parts. On the northwest side, shifting clay soil pulls at line sets, so a slow refrigerant leak is a common find. We don’t sell what you don’t need, and that’s what you should expect from an air conditioning contractor.
Heating Contractor
How long has it been since anyone looked at your furnace? Around here a heater can sit idle nine months, then it’s asked to hold a house through a hard freeze. Winter Storm Uri kept the city below freezing for days back in February 2021. Our fall tune-up covers igniter wear, a dirty flame sensor, weak heat strips, and a blower loaded with cedar-season dust. Over 90 five-star Google reviews back that work. Schedule a heating contractor visit before the first cold front.
AC Installation
We install Goodman, Carrier, Trane, and American Standard. Sizing comes first, though. Builder-grade systems in Alamo Ranch hit their first replacement around year eight. The tonnage stamped on that old data plate often isn’t right for the house anymore. So we run a load calculation, check duct condition and return sizing, then match the SEER2 tier to the home. Your AC installation is handled by a licensed Texas ACR contractor and backed by a satisfaction guarantee.
Service Areas
From the shop in 78254, Helotes is up Bandera Road and Boerne is up I-10, both short runs. That matters more than it sounds. A 1970s Leon Valley tract house and a Fair Oaks Ranch estate on two acres fail in completely different ways, and a tech who knows which one he’s walking into shows up with the right parts on the truck. Two crews have covered this ground since 2011. Check the full map on our HVAC service areas page.
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Please Review Us
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Lloyd was knowledgeable and professional. He was able to explain what was needed to fix my ac in layman terms. Robert always answered my questions over the phone and informed me when to expect Lloyd, our ac tech. I would most definitely use this company again and recommend them to everyone.