Seasonal 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.
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AfterFast, Reliable Furnace Repair Across Seguin
Furnace repair in Seguin typically runs $150 to $700, and most no-heat calls get a same-day visit when the temperature drops. We cover all of Seguin, from the Guadalupe Street corridor down to the neighborhoods off Court Street and up toward the 78155 ZIP. If your furnace is blowing cold air, short cycling, or making a rattle that wasn’t there last winter, call (361) 306-9515 and you’ll get a real person on the line, not a voicemail queue. We send background-checked, uniformed technicians who arrive with the price book, not a blank invoice.
Why Dalton Heating & Air Is Seguin’s Preferred Furnace Repair Company
Seguin homeowners call us because we show up inside the stated window and put the repair price in writing before any work starts. That’s The Garrison Standard, and every Dalton location has operated under it since 2003. No exceptions, no “we’ll see once we open it up.” We tell you what the repair costs, you approve it, then we do the job by the book.
Marco Benitez runs this crew. He’s built the Seguin book of business on one rule: if a repair doesn’t hold, we come back free within the first year. That’s the 365-Day Done Right Promise, and it’s included with every furnace repair in Seguin, not sold as an add-on. Our Seguin customers also get the written guarantee on paper before we leave the driveway.
We service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. That matters in Seguin because the housing stock varies from 1970s pier-and-beam ranches to newer slab builds, and those homes carry different brands and different failure patterns. One crew that actually sees all of those furnaces beats a specialist who only knows two brands.
Heating Repair in Seguin
Heating Repair in Seguin means fixing a furnace that has stopped doing its one job during the three months of the year when a cold front turns unpleasant fast. The most common calls we get are no heat, weak airflow, short cycling, and a furnace that lights then shuts off within a minute. Most of those land between $150 and $700 depending on the part. A capacitor swap sits at the low end. A blower motor or gas valve runs higher.
No-Heat Calls and Short Cycling
A furnace that fires up and dies after 60 seconds usually has a flame sensor covered in carbon or a tripped high-limit switch. Both are straightforward repairs. If the unit cycles off and refuses to restart, the control board may be reading a false overheat condition, and that takes a multimeter and experience to isolate rather than guess at.
Airflow and Blower Issues
Weak heat from the vents in a Seguin home often traces back to a blower motor running at high static pressure. Undersized or dirty ductwork, common in older pier-and-beam houses off North Austin Street and around Walnut Springs Park, makes the blower work harder than it should. The motor fails early. We measure static pressure on every airflow complaint instead of slapping in a new blower and hoping.
Boiler Repair in Seguin
Boiler Repair in Seguin covers hydronic heating systems in older homes, concentrated near the historic district around Court Street and along Camp Street. These systems circulate hot water through radiators or baseboards instead of blowing air through ducts. When a boiler stops heating, the problem is usually the circulator pump, an air-bound line, or a faulty aquastat that’s not telling the burner to fire. Repairs land in the same $150 to $700 range as furnace work, though a circulator pump replacement runs toward the middle of that band.
Circulator Pumps and Air-Bound Lines
If one room radiates heat and another stays cold, you likely have air trapped in the line or a circulator pump that’s lost its prime. Blending the air out is a service call. A pump that’s seized or whining needs replacement, and we’ll quote that price before we touch a wrench.
Aquastat and Burner Issues
A boiler that runs constantly but never reaches temperature on the thermostat often has an aquastat out of calibration. It thinks the water is hotter than it is, so it idles the burner. We test the aquastat with a probe, set it to the correct differential, and confirm the burner fires through a full cycle before we leave.
Trusted Brands We Service in Seguin
We stock common parts for Rheem, York, and Daikin furnaces on our trucks, which means a failed ignitor or flame sensor often gets fixed in a single visit instead of waiting on a distributor run. Bryant furnaces, common in some of the newer subdivisions off Highway 46, are also in our parts rotation. Our Furnace Repair team works on all nine major brands we service, and factory training means we don’t learn the wiring diagram on your kitchen table. When we need a part that isn’t on the truck, our San Antonio supply house turns it around fast, and we’ll tell you the honest timeline before we order.
Common Furnace Repair Problems We See in Seguin Homes
- Failed capacitors after the 2021 freeze. Uri pushed a lot of Goodman and Rheem furnaces hard, and many of them never got serviced afterward. We now see capacitor failures on those units regularly across Seguin, including homes off Kingsbury Street and up toward the 78130 ZIP.
- Heat exchanger cracks in 15 to 20 year old units. Seguin’s older housing stock, especially pier-and-beam homes built in the 1970s and 1980s, carries furnaces that have run for two decades. Homeowners often miss the early sign: a faint formaldehyde or dusty smell when the burners first light.
- Blower motor failures from high static pressure. Dirty ductwork and undersized returns are common in both pier-and-beam and slab homes around Seguin. A blower motor pushing against resistance runs hot, draws more amps, and dies early.
- Frozen or clogged condensate lines on high-efficiency furnaces. Condensing furnaces produce water during normal operation. When a Seguin cold snap hits, that water can freeze in the drain line and trip the pressure switch, locking the furnace out. We see it most on units installed in attics or uninsulated closets.
Pricing for Furnace Repair in Seguin, TX
Here’s the honest math. Most furnace repairs in Seguin fall between $150 and $700, and the spread comes down to which part failed and how long it takes to reach it safely. A flame sensor cleaning or ignitor replacement runs $150 to $350. A gas valve or control board lands between $400 and $700. A blower motor sits in the middle. The tune-up price is $80 to $200, and that’s worth every dollar before winter arrives.
| Service | Price Range in Seguin |
|---|---|
| Furnace Repair | $150 – $700 |
| Tune-Up | $80 – $200 |
The price we quote is the price you pay. It’s in writing before any work starts, every job, no exceptions. Call (361) 306-9515 for a free estimate and we’ll send a technician who puts the number in front of you before opening the panel.
We Also Serve Cities Near Seguin
Beyond Seguin, our techs take calls in Marion, New Braunfels, Cibolo, and Schertz. The drive times are short, and the same Garrison Code applies everywhere: arrive inside the window, price in writing, clean site, full-year guarantee.
Serving Seguin, TX - Our Local Coverage Area
We’re based in the Seguin 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 Seguin
Check the air filter first. A clogged filter restricts airflow, causing the high-limit switch to trip and the burners to shut off while the blower keeps running cold air. If the filter is clean, the cause is likely a flame sensor, ignitor, or control board issue, and a technician should diagnose it. Call (361) 306-9515 for a same-day visit in Seguin.
You need a load calculation. Matching the old tonnage repeats whatever mistake the previous installer made, and Seguin homes vary enough in insulation, window area, and duct design that guessing leaves you with an oversized or undersized furnace. We run Manual J before any replacement quote. Ask Marco Benitez about it when he comes out.
It’s a replacement, and not because we want to sell a new furnace. A cracked heat exchanger leaks carbon monoxide into the airstream, and no reliable repair exists for a cracked exchanger. The correct move is to shut the furnace down, lab it, and quote a replacement sized by a load calculation. We’ll show you the crack with a camera before making that call.
Same day in almost all cases. Our dispatch coordinates from the San Antonio office, and Seguin crews stage locally during cold fronts precisely because a no-heat house in 20-degree weather is a health risk. Call (361) 306-9515 and a live person answers 24/7. We don’t send you to voicemail.
We repair Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock parts locally for Rheem, York, Daikin, and Bryant, which keeps most Seguin repairs to one visit. If we don’t have the part on the truck, we’ll tell you the honest timeline before ordering.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Seguin furnace repair under The Garrison Standard. Call (361) 306-9515 for a free estimate and a written price before any work begins.