(940) 204-7066
HVAC in San Antonio, TX: row of townhomes with outdoor AC condensers along the side

HVAC in San Antonio, TX

Expert HVAC Service in San Antonio, TX

Reliable heating and cooling service for area residents and businesses, with same-day availability.

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Our technicians providing HVAC in San Antonio, TX

Experienced HVAC Pros You Can Count On

Local residents trust Denton HVAC for no-AC and no-heat emergencies because we combine fast arrival times with thorough, professional workmanship.

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San Antonio HVAC Service You Can Count On

When you need a dependable heating and cooling company in San Antonio, Denton HVAC is the team to call. We've been keeping local homes and businesses comfortable year after year, earning repeat business one job at a time. Our technicians are local, not dispatched from across the state, which means faster response times and a real understanding of the climate patterns, housing stock, and ductwork quirks that shape how HVAC systems here perform and fail.

From a single no-cool emergency to complete system replacements, ductless mini-split installations, and seasonal maintenance programs, our team takes on every type of residential and commercial heating and cooling need. We offer fast service and give you a clear, written quote before any work begins, no hidden fees, ever. Our trucks carry the parts that fail most, capacitors, contactors, igniters, flame sensors, blower motors, and thermostats, so most repairs are finished in a single visit.

Whether your air conditioner is running nonstop without cooling, your furnace is short-cycling, or you're simply planning ahead for a system past its prime, one call to (940) 204-7066 gets a skilled local technician headed your way with everything needed to diagnose the problem the same day whenever possible.

Technician explaining thermostat settings to a homeowner in San Antonio, TX
A quick walkthrough of the thermostat settings is part of the visit.

Full-Service HVAC Care for San Antonio Homes and Businesses

We service every type of heating and cooling equipment you'll find in local homes and businesses, from central air conditioners and gas furnaces to heat pumps and ductless mini-splits. It makes no difference whether the building is a starter home, a condo, or a storefront. Our technicians understand the local weather, the age and construction of local homes, and the code requirements that apply to new installations, which pays off in the quality of every repair.

On the residential side, we take care of everything from quick fixes, like a failed capacitor, a pitted contactor, a dirty flame sensor, or a seized blower motor, to tracking down refrigerant leaks, full system change-outs, and ductless additions. We size every new system with a proper load calculation rather than guesswork, so you get even temperatures and reasonable utility bills instead of a unit that short-cycles itself to an early death. Our seasonal tune-ups clean coils, verify refrigerant charge, test safety controls, and check static pressure, the single best way to extend equipment life.

For commercial property owners and managers nearby, we service the rooftop units, split systems, and makeup air and ventilation equipment that restaurants, shops, offices, and apartment buildings depend on. We understand that a hot dining room or a freezing office means lost business, so we prioritize fast diagnosis, carry common parts on the truck, and schedule work around your operating hours whenever possible.

Fast HVAC Response in San Antonio

When your system quits, how quickly help arrives matters more than anything else. For that reason, we keep scheduling flexible across the area and answer every call with a live person. Urgent calls typically see a technician within a day, and we treat no-heat and no-cool calls ahead of routine work.

These are the problems that come up most when something breaks at home: an air conditioner blowing warm air, a condenser that hums but won't start, a furnace that lights for a few seconds and quits, a breaker that keeps tripping, an evaporator coil that has iced over, a condensate drain overflowing into the furnace cabinet, or a thermostat that has quit. Most of them trace back to a part we already carry: capacitors, contactors, igniters, flame sensors, universal control boards, and common fittings. You'll see the price up front, and that's the price you pay.

If your AC has iced over, the best thing you can do before we arrive is switch the system off at the thermostat and set the fan to "on" so the coil can thaw. Running it frozen can flood the drain pan and strain the compressor. If a furnace is short-cycling or you smell something burning, shut it down at the switch and call (940) 204-7066. A few minutes of caution can prevent a much larger repair.

Getting More Years From Your HVAC System in San Antonio

The best way to avoid a mid-season breakdown is simple maintenance. We recommend that homeowners replace filters every one to three months, keep shrubs and grass trimmed two feet back from the outdoor condenser, rinse the condenser coil each spring, and have a professional tune-up twice a year, cooling in spring and heating in fall, so small problems get caught while they're still inexpensive.

Take a look at the age of your system. That number tells you a lot. Most well-maintained air conditioners reach 12 to 15 years, gas furnaces 15 to 20, and heat pumps 10 to 15. If your system is past that point and also shows rising bills, uneven temperatures, or repeated repairs, it's usually due for a planned replacement, which is almost always cheaper and less stressful than a rushed emergency install when the first heat wave hits.

The sooner you call about a comfort problem, the smaller the repair tends to be. A weak capacitor costs little to replace, yet that same capacitor, ignored through a full season, can take out the compressor and force a full system replacement. Save our number on your phone now so help is one call away as soon as something seems off in your home. Early intervention saves time, money, and miserable nights.

Typical Heating & Cooling Issues in San Antonio

Ask any homeowner around here what HVAC trouble looks like and you'll hear the same stories: the upstairs that never cools, the furnace that woke everyone up banging at 2am, the system that runs all day but never satisfies the thermostat. Behind those stories are predictable culprits: failing blower motors, low refrigerant charge, undersized returns, and years of skipped maintenance. Our technicians run into these problems every week and carry the parts to fix most of them on the first trip.

Trusted Local Service

Living and working here gives us firsthand knowledge of what local homes need to stay comfortable. From iced-over coils to furnaces flashing error codes, our technicians are equipped to handle it all.

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Our Local HVAC Services

Our local team handles heating and cooling systems of every type for both homeowners and businesses, including:

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Why San Antonio Homeowners Trust Us

Denton HVAC treats this community like home turf, because it is. We show up when we say we will, we diagnose before we quote, and we put real numbers on both repair and replacement so you can decide based on facts, not pressure. Our technicians are experienced across every major brand, our trucks carry the parts that actually fail, and our work is tested before we leave. It's the reason so much of our local work comes from referrals.

Technician going over a written estimate with homeowners in San Antonio, TX

Common Heating & Cooling Questions

There isn't one magic number, but a few rules of thumb help. Most component failures on systems under about 10 years old are worth the repair. After roughly 15 years, or after a failed compressor or cracked heat exchanger at any age, a replacement usually makes better financial sense, especially with the efficiency gains newer equipment offers. We'll give you both numbers up front and let you decide, because we'd rather earn your trust than sell you a system early.
Yes, and a mini-split is often the smartest answer for room additions, garages, sunrooms, and older homes built without ductwork. Every zone is sized to the actual load of its room. We plan where the indoor and outdoor units go and handle the line set, condensate drain, and electrical connections with care. We'll also be honest if a ducted system would serve you better.
First, rule out the simple causes. Make sure the thermostat is in cooling mode with good batteries, swap the filter if it's dirty, and look at the breakers for the indoor and outdoor units. Ice on the copper lines or an outdoor unit that hums without running means it's time to shut the system off, since running it can damage the compressor. Call us at (940) 204-7066 and we'll get someone moving your way right away.
Every major brand, such as Carrier, Trane, Lennox, Rheem, Goodman, and York, plus ductless systems from Mitsubishi, Fujitsu, and LG. Our technicians carry universal parts that fit most units and can order brand-specific components quickly when a repair calls for them.
Yes, and for most homeowners it's the best thing you can do for your equipment. Each spring and fall, a technician cleans the coils and burners, checks the refrigerant charge and combustion, tests capacitors and safety controls, and measures airflow across the system. Catching a weak part during a tune-up costs far less than a breakdown in the middle of summer, and the energy savings usually cover the cost of the visit.
Yes. We repair all major brands of air conditioners, furnaces, heat pumps, and ductless mini-splits. When a system is past repair, we handle the entire replacement: removing and disposing of the old equipment, putting in a correctly sized new system, and testing it in every mode. You get a clear quote for each option before deciding.
Most calls are scheduled the same day, and a home with no heat or no cooling moves to the top of our list. When you reach us at (940) 204-7066, you'll get a realistic arrival window, and because the technician shows up with capacitors, contactors, igniters, and motors on the truck, most repairs wrap up in one trip.
It depends on what's wrong. Most repairs come in between $150 and $650, based on the part that failed and the type of system. A complete system replacement typically costs around $5,000 to $12,000 installed, depending on size and efficiency rating. Before we begin, we provide a clear quote based on the diagnostic, and that price holds.

Nearby Areas We Serve

Beyond this community, we cover the surrounding towns with the same fast service.

HVAC Service You Can Count On

Help is just a phone call away. Fast response, fair pricing, and thorough workmanship.

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