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.

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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Call (940) 204-7066 TodayOur Local HVAC Services
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Get Help: (940) 204-7066Why 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.
Common Heating & Cooling Questions
Nearby Areas We Serve
Beyond this community, we cover the surrounding towns with the same fast service.