Furnace Repair in San Antonio - Same-Day Repair, Priced Before We Start

Trusted Furnace Repair for San Antonio Homeowners

Furnace repair in San Antonio typically costs between $150 and $700, depending on the part that’s failed, and most calls can be resolved the same day. When the temperature drops in places like Alamo Heights or Terrell Hills, a furnace that won’t start isn’t a small annoyance. It’s a house full of cold kids and a family trying to figure out whether to bundle up or call someone who will actually show up.

Meadowsweet Heating and Air San Antonio has been part of the Cedarwell family of HVAC companies since 2004. Our owner, Luis Serrano, leads a team of background-checked, uniformed technicians who work on nine major equipment brands and stand behind every job with the 365-Day Done Right Promise. If you need a live person right now, call (254) 271-2545. Someone answers. Every time.

Furnace Maintenance

Furnace Maintenance is a preventive service that keeps your heating system running cleanly and catches small problems before they become mid-January emergencies. In San Antonio, it’s smartest to schedule this in October or early November, before the first real cold snap settles over the Hill Country. A maintenance visit from Meadowsweet Heating and Air San Antonio includes a full inspection, cleaning, safety checks, and a written report of what we found, with the work typically running from $80 to $200.

Seasonal Checkups

We inspect the burner, heat exchanger, blower motor, electrical connections, and thermostat calibration. We also test the system’s start-up cycle several times to catch intermittent faults that only show up under load. If a part is wearing down, we’ll show you exactly what it looks like before you decide what to do.

Filter and Efficiency Care

A clogged filter can cut airflow enough to overheat the furnace and cause it to shut down unexpectedly. We’ll check your filter, tell you the MERV rating your system actually needs, and make sure the condensate lines and drain pan are clear of buildup. This matters more in San Antonio because our winter air carries cedar pollen and fine dust that finds its way into every return vent.

Heat Pump Repair

Heat Pump Repair addresses the outdoor condensing unit and reversing valve that let your heat pump move heat into the house during winter and back out during summer. A heat pump working in heating mode is under the most strain during San Antonio’s January nights, which regularly dip below 40 degrees. Repair work from Meadowsweet Heating and Air San Antonio typically costs $150 to $650, and we carry common parts for Rheem, York, and Daikin systems to reduce wait time.

Defrost and Reversing Valve Issues

When the temperature drops near freezing, the outdoor coil develops frost, and the unit briefly runs a defrost cycle. If that cycle fails, ice builds up and the compressor works against itself. We test the defrost thermostat, the reversing valve solenoid, and the board logic that controls both, then replace only what’s actually failed.

Low Heat Output

A heat pump that runs constantly but never raises the indoor temperature usually has a refrigerant issue, a failing compressor, or a stuck reversing valve. We measure subcooling and superheat to diagnose the refrigerant side properly, not just guess and top off. If your unit is losing heat output in Leon Valley or Windcrest, we’ll get it diagnosed the same day.

Heating Repair

Heating Repair covers the full range of heating system failures, from tripped limit switches to failed blowers and control board faults. Whether your system is gas, electric, or a heat pump, the symptoms are usually the same: no heat, short cycling, unusual noises, or a thermostat that says one thing while the house feels another. Meadowsweet Heating and Air San Antonio repairs heating systems across San Antonio with pricing that ranges from $150 to $700, always with a written price before any work starts.

Diagnostic First, Parts Second

We never replace a part on a hunch. Every diagnostic starts with a sequence-of-operation test, which confirms what the furnace is and isn’t doing at each stage: inducer, igniter, gas valve, flame sensor, blower. In San Antonio homes built in the 1980s and 1990s, we frequently see aging control boards and corroded flame sensors that produce intermittent failures.

Whole-System Evaluation

Once we find the immediate fault, we check the rest of the system for signs of strain that could cause the next breakdown. That includes static pressure readings, temperature rise across the heat exchanger, and amp draw on the blower motor. Luis Serrano insists on this step because it prevents the frustrating cycle of fixing one part only to have another fail two weeks later.

Boiler Repair

Boiler Repair involves servicing the hydronic heating systems found in some older San Antonio homes, particularly in historic districts around Alamo Heights and parts of Kirby. Boilers use heated water circulated through radiators or baseboard heaters, and when a circulator pump or zone valve fails, the result is a cold section of the house. Meadowsweet Heating and Air San Antonio handles boiler repair starting at $150, with most repairs landing between $200 and $600 depending on the component involved.

Circulator and Zone Control

If one room heats while another stays cold, the issue is usually a stuck zone valve or a failing circulator pump. We check the end switches, the thermostat signal, and the pump’s resistance to pinpoint the failure. We also bleed air from the lines, which is the most common cause of gurgling noises and uneven heat in older hydronic systems.

Pressure and Leak Checks

A boiler that loses pressure frequently is telling you there’s a leak somewhere in the loop. We inspect the expansion tank, relief valve, and visible piping for signs of corrosion or weeping. Boilers in San Antonio are often 20 to 40 years old, so we’ll give you an honest assessment of whether repair is the right call or whether the system is nearing the end of its dependable life.

Gas Furnace Repair

Gas Furnace Repair focuses on natural gas furnaces, which are the most common heating systems in San Antonio homes and the ones that require the most safety-specific expertise. When a gas furnace fails, common culprits include the igniter, flame sensor, gas valve, pressure switch, or control board. Repair pricing from Meadowsweet Heating and Air San Antonio runs from $150 to $700, and every repair includes a combustion safety check before we leave.

Ignition and Flame Sensor Issues

The most frequent gas furnace failure we see in San Antonio is a dirty or failing flame sensor. The furnace lights, runs for five to ten seconds, then shuts down and repeats the cycle. We clean the sensor as part of a standard visit, but if it’s pitted or cracked, we replace it with an OEM part from Bryant, Carrier, or whatever brand your system uses.

Gas Valve and Safety Controls

A gas valve that won’t open or won’t stay open is a serious matter. Before touching the valve, we verify gas pressure at the manifold and test the safety circuit to rule out a tripped rollout switch or pressure switch. Gas work is not a DIY repair. If you smell gas near the furnace, leave the house immediately and call your gas utility first, then call us at (254) 271-2545 once it’s safe.

Furnace Tune Up

Furnace Tune Up is a systematic cleaning and calibration service that runs $80 to $200 and is designed to improve efficiency, reduce breakdown risk, and keep your manufacturer’s warranty valid. Most furnace warranties require annual professional maintenance, and skipping it can void coverage right when you need it most. At Meadowsweet Heating and Air San Antonio, a tune-up includes far more than changing the filter and calling it done.

What Gets Checked

We inspect and clean the burner assembly, test the igniter’s resistance, verify the flame sensor’s microamp reading, check the pressure switch, and measure temperature rise across the heat exchanger. We also test the carbon monoxide levels in the exhaust stream. Any reading outside the normal range gets investigated before we leave your home.

What Gets Adjusted

Gas pressure at the manifold gets adjusted to the manufacturer’s specification, not just to whatever the last tech left it at. Blower speed gets set to match your ductwork and filter resistance. We also verify that safety limits trip at the right temperature. In homes around Castle Hills and Selma, we find a surprising number of furnaces running 20% over their rated gas pressure, which shortens heat exchanger life.

Emergency Furnace Repair

Emergency Furnace Repair means we answer the phone at 2 a.m., diagnose what’s wrong, and get heat back on as fast as the repair allows. A live person answers every call at Meadowsweet Heating and Air San Antonio, 24 hours a day, 7 days a week. There’s no voicemail queue and no answering service that takes a message and promises someone will call back. You call (254) 271-2545, and you talk to a person.

Cold Weather Priority

San Antonio cold snaps hit fast, and homes here aren’t built for extended freezing temperatures the way homes up north are. Exposed pipes in attics and crawl spaces freeze quickly when the heat goes out. We prioritize calls where there are children, elderly family members, or medical equipment in the home. Tell the person who answers what’s going on, and we’ll give you a straight answer about when a technician will arrive.

What to Do While You Wait

If your furnace won’t heat, check the obvious things first: make sure the thermostat is set to heat and the filter isn’t completely clogged, then check the breaker for the furnace. If the system is blowing cool air, shut it off at the thermostat to prevent further strain. If you have a gas furnace and you notice any unusual smell, leave the house and call your gas utility before calling us.

Brands We Service

We service Rheem furnaces extensively in San Antonio, from the classic 80% AFUE units that were installed in thousands of suburban homes in the 1990s to newer high-efficiency condensing models. Our technicians know Rheem’s ignition system quirks and stock the igniters, flame sensors, and pressure switches that fail most often. That means fewer return trips and shorter repair windows for you.

York furnaces are also common in San Antonio, particularly in newer developments around Live Oak and Selma. We carry York-compatible control boards and draft inducer motors, and our techs are trained on York’s two-stage gas valve diagnostics. Whether your unit is a Bryant, a Daikin, or any other make, we’ll bring the right parts and the right knowledge. If we don’t stock what your furnace needs, we’ll source it locally and get it installed as fast as the supply house allows.

Signs You Need a Pro Right Now

• Your furnace is short cycling. It starts, runs for a minute or two, shuts off, and repeats. That usually means a flame sensor is dirty, a limit switch is tripping, or the heat exchanger is overheating. Short cycling wastes gas and accelerates wear on every rotating component.
• You hear banging, popping, or rumbling. A normal furnace makes a steady whoosh. Banging from the ductwork can mean expansion of the heat exchanger, and a rumbling burner can signal delayed ignition. Both problems are fixable, and both get worse the longer they’re ignored.
• The flame in the burner looks yellow or orange. A healthy gas flame is mostly blue with a clean shape. A yellow, flickering flame can mean the burner needs cleaning, the gas pressure is off, or there’s a carbon monoxide concern. If you can see the flame through the access panel, this is worth a call today.
• Rooms heat unevenly. One bedroom is roasting while another is freezing. This can be a damper issue, a failing blower motor, or ductwork that’s leaking air into the attic. We’ll measure the airflow and find the actual problem instead of telling you it’s normal.
• Your energy bill jumped for no clear reason. A furnace that’s running 30% more than it used to is usually warning you that a part is failing. A worn blower motor, a cracked heat exchanger, or a control board that’s misreading temperature can all cause a spike. The repair almost always costs less than the extra gas you’ll burn waiting.

Our Process, Step by Step

1. 1
   You call, we answer. A live person picks up at (254) 271-2545, day or night. We’ll ask what the furnace is doing (or not doing) and schedule a technician for the same day whenever possible. If it’s an emergency, we’ll tell you when to expect us, not just that someone is on the way.
2. 2
   We arrive with the right tools and a plan. Our technician shows up in a Meadowsweet uniform, wearing shoe covers before stepping inside. We’ll walk the property with you, ask what you’ve noticed, and listen. Then we start the diagnostic with a sequence-of-operation test that confirms exactly where the system is failing.
3. 3
   You get a written price before any work begins. We show you what we found, what it costs to fix, and what your options are. No pressure, no surprise charges, no “while we’re in there” add-ons. The price we give you is the price you pay. If the repair is smaller than expected, that’s what the invoice shows.
4. 4
   We make the repair and clean up completely. Drop cloths go down under the furnace, and any debris from the job is swept up before we leave. We’ll take a photo of the finished work and the clean work area and show it to you before we go. Our technicians follow the C.A.R.E. values code: Clean up like it’s their own home, Ask before moving anything, Respect your time and quiet hours, and Explain the price before the work.
5. 5
   We review everything with you and back it with the 365-Day Done Right Promise. You’ll know exactly what was replaced, why it failed, and what to watch for next. If the same problem comes back within a year, we make it right. No runarounds, no fine print.

How Much Does Furnace Repair Cost in San Antonio?

Our Service Area Near San Antonio

We serve San Antonio and the surrounding communities, including Furnace Repair in New Braunfels, Furnace Repair in Converse, Live Oak, Lackland AFB, Alamo Heights, Selma, Terrell Hills, Kirby, Castle Hills, Leon Valley, and Windcrest. Most calls in San Antonio proper get same-day service, and surrounding areas are typically reached within one to two hours depending on traffic and call volume. When you call, the person who answers can tell you exactly when a technician will be in your neighborhood.

Frequently Asked Questions About Furnace Repair in San Antonio

What is Furnace Repair?

Furnace repair is the process of diagnosing and fixing any component that prevents your heating system from working correctly, whether that’s the igniter, blower motor, gas valve, control board, or heat exchanger. At Meadowsweet Heating and Air San Antonio, every repair starts with a full diagnostic that identifies the root cause, not just the symptom. You receive a written price before any work begins, and all our repairs are backed by the 365-Day Done Right Promise.

How long does furnace repair take?

Most furnace repairs in San Antonio take 1 to 3 hours from diagnosis to completed work. Simple fixes like a flame sensor replacement or thermostat calibration can be done in under an hour. If a part needs to be sourced from a local supply house, we’ll give you a realistic timeline and keep you updated.

How much does furnace repair cost in San Antonio?

Furnace repair in San Antonio typically costs between $150 and $700, with the majority of common repairs falling between $200 and $400. The final price depends on which part has failed and whether your furnace is a standard-efficiency or high-efficiency model. You’ll always get a written price from Meadowsweet Heating and Air San Antonio before any work starts.

Do you service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard furnaces?

Yes, we service all nine of those brands, which covers the vast majority of furnaces installed in San Antonio homes. Our technicians are trained on the specific diagnostic procedures for each manufacturer, and we stock common OEM parts for Rheem, York, Bryant, and Daikin systems. If your furnace is another brand, we can still help as most furnace components operate on the same principles regardless of the badge on the outside.

Can you come out for an emergency furnace repair today?

Yes, we provide same-day emergency repair in San Antonio and the surrounding areas, and a live person answers the phone 24/7 at (254) 271-2545. We never send your call to voicemail. If your furnace is out during a cold snap, tell the person who answers that it’s an emergency, and we’ll prioritize your call.

Is there a warranty on furnace repairs?

Every repair from Meadowsweet Heating and Air San Antonio is covered by the 365-Day Done Right Promise. If the repair isn’t done right within a year, we’ll make it right, no fine print and no runarounds. We also help you understand the remaining manufacturer’s warranty on your furnace so you know what’s covered at the equipment level.

How do I prepare for a furnace repair visit?

Clear a path to the furnace and make sure the area around it is accessible, especially if it’s in a closet or utility room. If you have pets, it helps if they’re in another room while we’re working on the equipment. You don’t need to do anything else. We’ll bring shoe covers and drop cloths, and we’ll clean up after ourselves completely.

Schedule Your Furnace Repair Service in San Antonio Today

Call (254) 271-2545 and speak with a live person about your furnace repair in San Antonio. We’ll schedule a same-day visit when possible, give you a written price before any work begins, and stand behind the job with the 365-Day Done Right Promise. Estimates are free, and no repair is too small.

Written by Luis Serrano, Owner at Meadowsweet Heating and Air San Antonio, serving San Antonio since 2004.