Furnace & heating
Heat pumps
Ductless mini splits
Carrier
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GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable Furnace Repair Across Schertz
A furnace repair in Schertz typically runs $150 – $700, parts and labor included, and most jobs that take one visit can be diagnosed and fixed the same day we arrive. When your heat kicks out during one of those cold snaps that roll off the Balcones Escarpment, you don’t want a phone tree or a callback tomorrow. You want a live human on the line at (361) 470-8872, a written price before any work starts, and a technician whose name and photo you already got before they pulled into your driveway.
We work all over Schertz, from the older ranch houses near Schertz Village to the newer subdivisions off Roy Richard Drive and FM 3009. We know the difference in how each era of home fails, which is the kind of local knowledge you only get from driving these streets week after week.
Why Brandt HVAC Co San Antonio Is Schertz’s Preferred Furnace Repair Company
Schertz homeowners deal with two very different furnace problems depending on when their home was built. In the 1970s and 1980s ranch homes, the equipment is often original or overworked, with ductwork that has shifted on expansive clay soil. In the 2000s and 2010s subdivisions, the furnaces are newer but frequently undersized because the builder never ran a proper load calculation. We see both patterns constantly, which means we don’t start every job from scratch. We start from what we already know about your block.
Every technician we send into Schertz is background-checked, identity-verified, and introduced to you by name and photo before arrival. When they knock, they show a photo ID badge. That’s the Threshold Verified standard, and it matters if you’re home alone, managing a houseful of kids, or just don’t open the door for a voice on the phone. You know exactly who is coming. If someone shows up you weren’t told to expect, that visit is on us and we make it right.
We answer our phones with a live person 24 hours a day, 7 days a week. Nights, weekends, holidays. When your furnace fails at 10 p.m. during a freeze warning in northern Schertz, you talk to a person, not a voicemail.
Brandt HVAC has been doing this since 2003 as part of the Threshold Group family of home-service companies. This location is independently owned and operated, led by Devin Marlowe.
Styles & brands we work with
Heating Repair in Schertz
Heating repair in Schertz means more than just the furnace box. It’s the full system that delivers warm air: burner, heat exchanger, blower, ductwork, and the controls tying it together. A heater that short-cycles, roars, smells, or just won’t fire is a heating repair call. In Schertz, that call usually costs between $150 and $700, depending on what failed. A failed ignitor or flame sensor lands on the low end. A blower motor replacement lands higher.
The key with heating repair is figuring out why the symptom showed up, not just swapping the part. A furnace that blows cold air might be a capacitor. Or a cracked heat exchanger. Or blocked ducts. We diagnose the source, write the price down, and don’t touch a tool until you’ve approved it.
Common Heating Failures We See in Schertz
Older Schertz ranches with slab foundations fight duct leakage from soil movement. If the burner fires but rooms won’t warm, the problem is often not the furnace at all. It’s the ductwork under the slab or through the attic leaking heated air into spaces no one lives in. On newer homes, the culprit tends to be an undersized or incorrectly set blower motor that can’t move enough air across the coils.
Bottom line: heating repair in Schertz is rarely one-size-fits-all. The neighborhood matters. The era of your home matters. We send a technician who knows both.
Boiler Repair in Schertz
Boiler repair in Schertz is less common than furnace work, but plenty of homes in the area still run hot-water heat, especially some of the older custom properties on the edges of the Hill Country. A boiler that loses pressure, makes banging sounds, or won’t produce hot water is a boiler repair job. In Schertz, that work generally falls in the $150 – $700 range, same as furnace repair, with the biggest cost drivers being pump failures and zone valve replacements.
Boilers run on water, and Schertz water is hard. Sediment and scale build up inside the heat exchanger, reducing efficiency and eventually causing the unit to overheat or the pressure relief valve to trip. That’s not a scary mystery. It’s local water chemistry, and we account for it.
What a Boiler Repair Visit Looks Like
We check system pressure first, then the circulator pump, then each zone valve. A boiler that’s working but not heating one part of the house usually has a failed zone valve or trapped air. A boiler that’s completely cold usually has a pump that gave out or a control board that quit. Once we know what failed, we write the price down and explain exactly what’s getting replaced and what the guarantee covers.
It’s worth knowing that boiler repairs in Schertz are less forgiving than furnace repairs, because a mistake on a gas valve or pressure control isn’t just an inconvenience. It’s dangerous. We don’t cut corners on safety controls, and we never jury-rig a boiler to get through one cold night.
Trusted Brands We Service in Schertz
We service all major residential furnace brands, and in Schertz we most often find Goodman, Rheem, York, and Daikin in the field. Goodman units are everywhere in the 2000s-era subdivisions off FM 2252. Rheem and York pop up in the 1980s ranch homes. Daikin shows up in a lot of the newer, higher-efficiency installs. Whatever you have, we can get parts. Our supply chain is set up to get Schertz customers back up and running fast, usually same-day when the part is in stock.
We also know the warranty situations with each brand: what’s covered, what’s not, and how to document a claim so you don’t get stuck holding the bill for a part that failed inside its coverage window.
Common Furnace Repair Problems We See in Schertz Homes
Schertz has an unusual combination of housing stock, soil, and air that creates a very specific set of furnace failures. Here is what we actually run into week after week:
- Builder-grade furnaces that were never load-calculated. In the 2000s-2010s subdivisions, builders often sized by square footage rule of thumb. The furnace is too small for the actual heat loss, so it runs constantly, burns out blower motors early, and leaves the far bedrooms cold on freeze nights. The fix isn’t always a bigger furnace, it’s a study of what the house actually needs.
- Rust-through on galvanized flues in older neighborhoods. In areas like Schertz Village, the original galvanized furnace flues are often rusted through by the humid, salty air drifting up from the Gulf coast. That vent deterioration leads to carbon monoxide leaking into the home every fall. If you smell exhaust or get unexplained headaches when the heat runs, this is the first thing we check.
- Duct leaks from slab movement on expansive clay. Schertz sits on clay soil that swells and contracts with moisture. Over 30 or 40 years, that movement cracks and separates duct seams. Burners overheat because airflow resistance drops, and the furnace shuts down or trips its limit switch. The furnace itself might be fine. The duct system is the illness.
- Failed blower motor capacitors in newer homes. We got called to a 2015-era home off Roy Richard Drive where the furnace would fire but wouldn’t push warm air. The builder-grade Goodman had a failing blower motor capacitor, and the static pressure reading was way off. The original flex duct runs to the back bedrooms were kinked during the rushed subdivision build. We replaced the capacitor, straightened the duct, and re-verified the airflow. That’s a two-part failure no generic repair page would ever mention.
See the difference
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AfterPricing for Furnace Repair in Schertz, TX
Most furnace repairs in Schertz land between $150 and $700. The low end covers an ignitor replacement, flame sensor cleaning, or a small control part. The high end covers blower motors, gas valves, or heat exchanger-adjacent work. Here are the line items.
| Service | Typical Range (Parts & Labor) |
|---|---|
| Furnace Repair | $150 – $700 |
| Heating Repair | $150 – $700 |
| Boiler Repair | $150 – $700 |
But the biggest cost driver in Schertz isn’t the part. It’s finding the real problem. A $20 capacitor can look like a $600 blower motor if you guess wrong. We don’t guess. We diagnose, then put the number in writing before we pick up a tool. Free estimates come with every call to (361) 470-8872, and you’ll get a written price you can hold onto, not a verbal estimate that drifts.
We Also Serve Cities Near Schertz
Our technicians cover Schertz and the surrounding communities on a daily basis. You’ll find us running calls in Schertz proper, up the road in Cibolo, across the county line in San Antonio, out past the thickets in Bulverde, and down toward Floresville. If you’re in one of those areas and your furnace is down, call the same number and you’ll get the same live person. If you need more detail on how we work, our Furnace Repair team is ready to explain exactly what a visit looks like.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Furnace Repair in Schertz
It is more common in Schertz than in most places, yes. Many of the 2000s-2010s subdivisions along FM 1103 and FM 2252 were built fast, with furnaces and ductwork installed by low-bid subcontractors who never ran a load calculation. The furnace is sized for a sketch, not the house. Add in kinked flex ducts and skipped commissioning, and it’s not unusual to see a blower motor or heat exchanger fail inside the first eight years. We see it constantly.
Call (361) 470-8872 and we’ll come out, measure the actual performance of the system, and tell you honestly whether a repair solves it or whether the install was botched from day one.
Rusted-through galvanized flue pipes, especially in 1970s and 1980s homes near Schertz Village, are the most dangerous. The humid air off the Gulf carries salt that corrodes galvanized venting over decades, and when the flue fails, carbon monoxide does not vent outside. It seeps into the rooms where you sleep. If you have an older furnace and you smell exhaust, or if the home has a faint metallic odor when the heat runs, you need a professional to inspect the venting before you run that system again.
We include a combustion safety check on every older furnace we open up. Call (361) 470-8872 to get on the schedule.
Yes. A failed blower motor capacitor is one of the most common single-point failures in Schertz furnaces, and we replace them regularly around the city. But it could also be a failed blower motor itself, a bad relay on the control board, or a tripped limit switch caused by restricting ductwork. The only way to know for sure is to test voltage at the capacitor and measure the motor’s actual amp draw.
That’s a standard diagnosis for us. Call (361) 470-8872 and we’ll test it, show you the reading, and give you a written price for whatever is actually wrong.
Yes, more than most people realize. Schertz sits on expansive clay that shrinks in drought and swells in wet weather. Over years, that movement under a slab foundation cracks and separates metal ductwork, or crimps flexible duct runs under and through the foundation. That means your furnace can be cycling, burning, and working correctly, while the hot air it produces never actually reaches your rooms. You pay to heat a dead space under the house. The furnace ends up overheating and shutting down from lack of airflow.
If your furnace runs constantly and some rooms are always colder than others, duct damage from soil movement is a likely cause. Call (361) 470-8872 and we’ll run airflow tests to find the leaks.
The SEER2 rating tells you how efficiently the cooling side of the system runs, and it matters in Schertz because our summers run longer and hotter than the rest of the state. If your newer furnace is paired with an AC that was sized by rule of thumb instead of load calculation, the whole system struggles more than it should, and that stress lands on the furnace too, especially in the shared blower and controls. A furnace that shares a blower with an overworked AC accumulates wear faster.
When you call about a furnace problem on a newer Schertz system, we check the air handler and the thermostat programming, not just the furnace. That’s the difference between fixing the symptom and fixing the system. Call (361) 470-8872 for a straight answer.
Call Brandt HVAC Co San Antonio for Furnace Repair in Schertz
When a furnace fails in Schertz, it isn’t a test of how quickly you can compare quotes online. It’s a test of who answers the phone, who shows up at the door, and who gives you a written price before they open a tool bag. We answer with a live person. We tell you the technician’s name and photo before they arrive, and they show you a badge when you open the door. Every repair includes a written guarantee, and if the repair fails inside that guarantee period, we return free of charge under the 365-Day Done Right Promise. That is the Brandt way of doing things, because Devin Marlowe built this company on the idea that certainty is worth more than a lowball quote.
For furnace repair in Schertz, TX, call (361) 470-8872 now. A human will pick up.
Written by Devin Marlowe, Owner at Brandt HVAC Co San Antonio, serving Schertz and the surrounding communities.