Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
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 Kirby
Furnace repair in Kirby typically runs $150 to $700, and most jobs are done in a single visit. If your furnace is short-cycling, blowing cold air, or tripping its limit switch, call us at (361) 470-8872 and a live person answers, day or night. We know the east-side ranch homes, the exposed rural lots, and the way Kirby’s winter wind hits a propane furnace harder than it hits one tucked into a newer subdivision west of I-35.
Kirby homeowners don’t need a scripted service pitch. They need a tech who has seen an original 4-inch duct choke a 3-ton Goodman, who knows why a rollout switch trips on a gusty night, and who shows up with a written price before touching a single component. That’s our AC Repair in Kirby.
Why Brandt HVAC Co San Antonio Is Kirby’s Preferred Furnace Repair Company
Kirby is its own place. The housing stock tells a story: modest single-story ranch homes from the 1950s through the 1970s, many slab-on-grade with minimal insulation and ductwork that was undersized when it was installed and is dangerously undersized now. Our Furnace Repair team works in these homes every week. We know what a static pressure reading of 0.9 means for a heat exchanger in a 1960s ranch. We know what flame rollout looks like on a propane furnace sitting on an acre lot with no wind shelter in all four directions.
Every tech who heads to Kirby is background-checked, identity-verified, and introduced to you by name and photo before arrival. At the door, they show a photo ID badge. That’s the Threshold Verified standard, and it’s non-negotiable. If someone shows up who you weren’t told to expect, that visit is on us and we make it right.
Response time to Kirby runs tight because dispatch runs from the San Antonio office and crews serve Kirby locally. When a furnace dies on a 28-degree night, you don’t get a voicemail. You get a live person, a set arrival window, and a tech driving straight to your block off Ackerman, Binz-Engleman, or up toward the Loop 1604 split.
Devin Marlowe, who leads our team, puts it plainly: a furnace repair in Kirby should be a fix that holds through the next hard freeze, not a part swap that fails again in February. That’s the standard we work to, and it’s the reason Kirby homeowners call us back.
Styles & brands we work with
Furnace Tune Up in Kirby
A Furnace Tune Up in Kirby is the single best way to avoid a mid-winter failure in a slab-on-grade home where heat loss is already a fight. A tune-up here means checking the heat exchanger for the early cracks that undersized ductwork causes, testing static pressure on the blower, verifying the rollout switch on propane setups, and cleaning the burners and flame sensor so the furnace lights clean on the first try.
Most Furnace Tune Ups in Kirby run $80 to $200. We give you the price in writing before any work starts, and the tech documents what they found in a written report you keep. Our techs are not paid on what they sell. If the furnace checks out, we tell you it checks out.
What the Tune Up Covers
We measure static pressure across the blower on every tune-up, because Kirby’s older ranch homes regularly run above 0.8 inches and that number tells us whether the furnace is being strangled by the ductwork. We also inspect the heat exchanger for cracks, clean the flame sensor, check gas pressure on propane or natural gas lines, and test the limit and rollout switches for correct operation.
When to Schedule It
Book it before the first hard freeze. Kirby’s winter peaks are short but sharp, and furnaces that have idled since spring tend to reveal problems on the coldest night of the year. A tune-up now catches a cracked exchanger or a weak limit switch while it’s still a $150 repair, not a $700 emergency on a windy Saturday night.
Emergency Furnace Repair in Kirby
Emergency Furnace Repair in Kirby means a furnace that won’t fire on a night when the temperature drops below freezing and nobody in the house should be without heat. That’s a genuine health risk in a Kirby ranch house with minimal insulation, where indoor temperatures fall fast. We answer the phone with a live person 24 hours a day, 7 days a week, and we dispatch to Kirby immediately.
Emergency repairs fall within the same $150 to $700 range as standard repairs. We don’t charge overtime for emergency calls. You get a written price before any work begins, and if the repair fails within the guarantee period, we return at no charge under our 365-Day Done Right Promise.
What Counts as a Furnace Emergency
No heat on a below-freezing night. A gas smell near the furnace, which means shut the unit down and call us from outside the house. A rollout switch that trips repeatedly, which on a propane furnace in an exposed Kirby lot can mean flame rollout from gusty wind and needs a tech to diagnose, not a repeated reset.
Overnight and Weekend Response
Hard freezes in Kirby don’t wait for business hours, and neither do we. Weekend and overnight calls go to a live dispatcher who sends a tech to your door with a name and photo texted to you before they arrive. That Threshold Verified intro matters even more at 2 a.m., when you’re opening the door to someone you were told to expect.
Trusted Brands We Service in Kirby
We work on all major residential furnace brands, and we stock common parts locally for Kirby customers so repairs don’t stall waiting on a warehouse. The Kirby homes we service run a mix of Goodman and Rheem in the older ranch sections, with York and Daikin showing up in the newer builds. Furnace ignitor replacements, limit switches, flame sensors, and rollout switches for these brands are on our trucks most days. If your propane furnace is a Goodman short-cycling off Ackerman Road or a Rheem tripping a limit switch in a new subdivision, we know the failure pattern before we ring the doorbell.
Common Furnace Repair Problems We See in Kirby Homes
- Overheating heat exchangers from 4-inch ducts. Many 1950s-era Kirby ranches still run original 4-inch ductwork that drives static pressure above 0.8 inches. That chokes airflow, overheats the exchanger, and cracks it over repeated winter cycles. We fix the exchanger and often recommend a return-drop upsizing so the new one lasts.
- Flame rollout on windy nights. Propane furnaces on exposed rural lots around Kirby run lean when gusty winter fronts slam the unit from all sides. Rollout switches trip, homeowners think the furnace won’t ignite, and repeated resets don’t fix the real problem. We test gas pressure and wind exposure, then correct the burn.
- Furnaces that never reach setpoint. Slab-on-grade Kirby homes with minimal insulation lose heat so fast the furnace runs constantly and still can’t satisfy the thermostat. That leads to repeated lockouts and, in outbuildings, frozen condensate lines. The fix often involves duct correction and combustion-air review, not just a bigger furnace.
- Limit switch failures in outbuildings. Detached workshops and garages around Kirby often run on heat pumps or small gas furnaces with little insulation. When temperatures drop, condensate lines freeze and limit switches fail. We repair the unit and flag the insulation gap so the next cold snap doesn’t repeat the failure.
See the difference
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After
Before
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Before
AfterPricing for Furnace Repair in Kirby, TX
Furnace repair in Kirby runs $150 to $700. A furnace ignitor replacement typically falls in the $150 to $300 range, parts and labor included. A cracked heat exchanger or blower motor repair lands higher, toward the $400 to $700 end. A Furnace Tune Up runs $80 to $200.
| Service | Typical Price in Kirby |
|---|---|
| Furnace Tune Up | $80 – $200 |
| Furnace Repair | $150 – $700 |
Every job begins with a written price you see and approve before any work starts. Estimates are free. If a repair fails within the guarantee period, the second visit is on us. Call (361) 470-8872 and we’ll price your exact furnace repair over the phone or on site in Kirby.
We Also Serve Cities Near Kirby
Kirby is home base for this page, but we regularly dispatch to San Antonio, Schertz, Cibolo, and Boerne. If you’re in one of those cities and need the same Furnace Repair certainty, our full furnace service applies. Call us and we’ll route the nearest tech to you.
Serving Kirby, TX - Our Local Coverage Area
We’re based in the Kirby 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 Kirby
The rollout switch trips because a gusty winter front is blowing flame back out of the burner chamber, which happens on exposed Kirby lots where the furnace has no wind shelter. The fix is rarely the switch itself; we adjust gas pressure, check burner alignment, and sometimes add wind shielding at the vent. Call (361) 470-8872 for a diagnosis, not a part swap.
Yes, we repair heat pump systems in detached workshops and garages across Kirby. The most common cold-weather failure we see in those outbuildings is a frozen condensate line from minimal insulation, followed by limit switch failures from the same cause. We repair the unit and tell you exactly what caused the failure so it doesn’t come back next freeze.
Yes, and it’s the single biggest factor in furnace failures we see in Kirby’s older ranch homes. Original 4-inch ducts push static pressure past 0.8 inches, which overheats the heat exchanger and cracks it during winter cycles. A repair that doesn’t address airflow will fail again. We test static pressure on every older Kirby home and recommend duct correction when the numbers justify it.
Yes, a live person answers the phone 24/7, including nights, weekends, and holidays, and we dispatch to Kirby during hard freezes with no overtime charge. Emergency repair runs the same $150 to $700 range as standard work. If your furnace fails on a freezing February night and you call us, a named tech with a photo ID is on the way.
For a Kirby ranch with slab-on-grade construction and minimal insulation, a SEER2 rating in the 15 to 16 range paired with a correctly sized furnace and duct correction will do more than a higher rating alone. The bigger lever in older Kirby homes is loading and ductwork, not just the unit’s efficiency rating. We’ll show you the numbers before you commit, and the price is in writing before any install work starts.
Call Brandt HVAC Co San Antonio for Furnace Repair in Kirby
When your furnace fails in Kirby, you want two things: a real person on the phone and a qualified tech at your door with a name you already know. That’s how we work. Every technician is background-checked and identity-verified under the Threshold Verified standard, introduced by photo before arrival, and badged at the door.
Furnace repair in Kirby starts at $150, goes up to $700 for the most involved jobs, and never starts without a written price you approve first. The repair is guaranteed in writing. If it fails within the guarantee period, we return free under our 365-Day Done Right Promise. The name Brandt comes from an old word for a firebrand, and keeping Kirby homes warm is exactly the work that name fits.
Call us at (361) 470-8872 for a free estimate on furnace repair in Kirby, TX. A live person answers, and we’ll have a named, verified tech headed your way.
Written by Devin Marlowe, Owner at Brandt HVAC Co San Antonio, serving Kirby and surrounding communities.