HVAC San Antonio, TX

Complete Comfort Care in San Antonio

San Antonio homeowners rarely call an HVAC company when things are going well. They call when the AC dies in a heat wave, when the furnace clicks but never lights, when one bedroom stays ice cold no matter what the thermostat says. Sherman HVAC built its local reputation on those calls: answering fast, arriving with stocked trucks, and solving the real problem on the first visit. From quick capacitor swaps to full heat pump conversions, our technicians handle every job with upfront pricing and no pressure, and we treat your home like it belongs to a neighbor, because around here, it does.

Full-Service HVAC Care for San Antonio Homes and Businesses

Heating and cooling around here means a wide mix of equipment: older gas furnaces in established neighborhoods, newer heat pumps in recent construction, ductless mini-splits in additions and converted garages, and rooftop units on commercial buildings. Our team handles all of it. Our technicians have years in the field, and we know how the weather here, the housing stock, and code requirements affect the way equipment runs and fails.

A typical week for our residential technicians might include capacitor and contactor replacements, flame sensor cleanings, refrigerant leak repairs, blower motor swaps, and at least one full system replacement or ductless addition. When we do replace equipment, we size it with a room-by-room load calculation instead of guessing. A correctly sized system keeps rooms even, runs efficiently, and steers clear of the short-cycling that wears out compressors early. Beyond repairs and replacements, we recommend seasonal tune-ups that clean coils, confirm the refrigerant charge, test safety controls, and measure static pressure, the most effective single step for longer equipment life.

Commercial work makes up a large share of our work as well. We maintain and repair rooftop units, split systems, and ventilation equipment for restaurant kitchens, retail stores, offices, and multi-unit buildings, and we know that a day without cooling costs the business. To keep that downtime short, we keep common commercial parts stocked, diagnose quickly, and plan larger jobs around your operating hours whenever possible.

Fast HVAC Response in San Antonio

Call us with a problem and a real person picks up, not a phone tree. Most service requests are scheduled the same day or the next, and urgent calls, a dead air conditioner during a heat wave or a furnace that fails on a freezing night, jump to the top of the schedule. Scheduling stays flexible so you're not left waiting for a callback.

Here's what we see most often when something breaks at home: an air conditioner blowing warm air, a condenser that hums but won't start, a furnace that ignites and shuts off, a breaker that trips every time the system kicks on, an evaporator coil that has frozen, a condensate drain backed up into the furnace cabinet, or a thermostat that has gone blank. Most of them trace back to parts already on our trucks: capacitors, contactors, igniters, flame sensors, universal control boards, and common fittings. You get the price before any work starts, with no surprises on the invoice.

If your AC has iced over, the most helpful 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, turn it off at the service switch and call (903) 200-8550. A few minutes of caution can prevent a much larger repair.

Getting More Years From Your HVAC System in San Antonio

A little routine care makes all the difference between a system that runs for years and one that quits in the middle of a heat wave. Our advice for homeowners is a short list: fresh filters every one to three months, two feet of clearance around the outdoor condenser, a gentle rinse each spring for the condenser coil, and two professional tune-ups a year, so problems are found while they're still inexpensive.

The age of your equipment plays a big role. With regular service, a central air conditioner usually runs 12 to 15 years, a furnace 15 to 20, and a heat pump 10 to 15. Once a system passes that range and starts showing warning signs, like rising energy bills, rooms that never reach the setpoint, or repeat service calls, it's time to plan a replacement. A planned replacement is cheaper and is far less stressful than an emergency swap during the worst heat wave of the year.

The earlier you report a comfort problem, the cheaper it usually is. A weak capacitor costs little to replace, yet the same part, ignored for a season, can ruin the compressor and turn a simple fix into a full system replacement. Save our number in your contacts now so you can reach us fast as soon as something sounds or feels wrong in your home. A quick call saves time, money, and miserable nights.

Typical Heating & Cooling Issues in San Antonio

Most local HVAC failures announce themselves before they happen. A breaker that trips every few days, a condenser that hums louder each month, rooms drifting further from the thermostat setting, energy bills creeping up with nothing else changed. These are the early symptoms of failing capacitors, refrigerant leaks, dirty coils, and duct problems, and caught early they're an affordable repair. Ignored, they take out compressors and heat exchangers, the two most expensive parts in the system. We find the root cause instead of treating symptoms, so small problems stay small.

Our Local HVAC Services

From single-family homes to commercial properties, our team covers every comfort need in the area, including:

Why San Antonio Homeowners Trust Us

Plenty of companies will sell you a new HVAC system. Sherman HVAC earns trust around here by fixing the ones that don't need replacing and being honest about the ones that do. Our technicians diagnose the actual fault before quoting anything, explain your options in plain language with real numbers, and leave the decision to you. When replacement is the right call, we size the new system with a proper load calculation based on your home's real heating and cooling load, square footage, insulation, windows, and duct capacity, instead of defaulting to whatever's in the warehouse.

The workmanship holds up because we don't cut corners: correct refrigerant charge weighed in rather than guessed, sealed duct connections, proper condensate drainage, verified combustion and airflow on heating equipment, and clean electrical work that passes inspection the first time. We show up when we said we would, protect your floors, haul away the old equipment, and test the full system in every mode before we pack up. It's why so much of our local work comes from repeat customers and referrals, and why we back every job with a satisfaction guarantee.

Your HVAC Questions Answered

More Areas We Cover

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