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 Denton
Furnace repair in Denton typically runs $150 – $700, and most calls are handled same-day or within 24 hours. If your heat is out on a 25°F night near UNT or off Loop 288, you don’t want to wait on a callback. You want a technician who shows up inside the stated window, diagnoses the problem, and puts the price in writing before any work begins. That’s how Dalton Heating & Air operates in Denton, and it’s the reason homeowners across the city call us first when the furnace quits. Reach us at (361) 306-9515, day or night, and a live person answers.
Why Dalton Heating & Air Is Denton’s Preferred Furnace Repair Company
Denton homeowners call us because we treat the call the way they’d expect a neighbor to treat it: show up, tell the truth, and stand behind the work. Our technicians arrive background-checked and in uniform, so the person at your door is the person we described on the phone. Every repair includes a written price before work starts and a written guarantee on the work itself. Under The Garrison Code, if the repair fails within a year, we return at no charge. That’s not an upgrade or a warranty package. It’s the standard every Dalton job has to meet, since 2003.
We don’t rush the diagnosis. A furnace that won’t light could be an ignitor, a gas valve, a control board, or a cracked heat exchanger. We test, we narrow it down, and we show you the failed part. When the fix is simple, we say so. When it’s not, we show you the numbers and let you choose. That discipline is why Denton customers keep our number and why most of our work comes from referrals in neighborhoods like Idiot’s Hill, Southridge, and the streets south of Texas Woman’s University.
Boiler Repair in Denton
Boiler repair in Denton takes a specific skillset, because most of the local housing stock runs forced-air furnaces, not hydronic systems. But older homes near the Denton square, along Oak Street and around the north side of TWU, still run boilers, and when those systems fail, the symptoms are different: no heat in the loop, kettling, low pressure, or a circulator pump that’s seized. We work on those. A boiler repair in Denton runs within the same $150 – $700 range as furnace repair, depending on whether you’re looking at an ignitor, an aquastat, a pressure relief valve, or a circulator replacement.
Circulator Pump and Zone Valve Work
A boiler that runs but won’t push hot water through the baseboards usually points to the circulator pump or a stuck zone valve. We test for voltage at the pump, check the valve actuator, and replace the failed component rather than guessing. Older Denton homes with cast-iron radiators put a lot of strain on these parts, and we keep common replacement options stocked locally.
Pressure and Aquastat Diagnostics
Low system pressure or a boiler that won’t hold temperature often comes down to a failing pressure reducing valve or an aquastat out of calibration. We’ll test the fill valve, check the expansion tank, and confirm the aquastat is cycling at the right setpoint. The fix is usually straightforward, and we’ll quote it in writing before we touch a fitting.
Gas Furnace Repair in Denton
Gas furnace repair in Denton sees a spike every December and January, when temperatures drop into the teens and systems that idled through a mild fall suddenly have to run all night. The most common failures we diagnose are failed ignitors, dirty flame sensors, weak capacitors, and gas valves that won’t open. A gas furnace repair in Denton typically runs $150 – $700, and the biggest variable is whether the heat exchanger is involved. If it is, the conversation shifts from repair to replacement, and we’ll show you the crack and give you a written price for the new system before anything is ordered.
Ignitor and Flame Sensor Diagnosis
If your furnace clicks but won’t light, the ignitor has likely failed, or the flame sensor is coated and can’t detect the flame. We test both, clean the sensor when it’s salvageable, and replace the ignitor when it’s cracked. It’s a common call in Denton homes with 12 to 18 year old furnaces that have been cycling hard through our cold snaps.
Gas Valve and Limit Switch Checks
When the burner lights briefly and then cuts out, the gas valve may be starving the flame, or the limit switch is tripping because airflow is restricted. We check gas pressure at the manifold, confirm the valve is opening fully, and measure the temperature rise across the heat exchanger. If the limit switch is opening early, we look upstream, at the duct system, rather than just replacing the switch and hoping.
Trusted Brands We Service in Denton
Our technicians are factory-trained to work on Rheem, York, Daikin, and Bryant equipment, among others. That matters in Denton because local homes run a mix of brands, depending on when the system was installed and who put it in. We keep ignitors, flame sensors, capacitors, and pressure switches on our trucks so we can finish most furnace repairs in a single visit, and when a part is uncommon, we source it through our local supply network, not a national warehouse. You’ll know the brand of the part, the price of the part, and when the work will be done before we start.
Common Furnace Repair Problems We See in Denton Homes
- Duct leakage from clay-soil movement. Denton sits on the eastern edge of the Barnett Shale, where clay-heavy soil expands and contracts with wet-dry cycles. That movement cracks slab ductwork and disconnects supply runs, especially in older neighborhoods near the square, and the furnace starts short cycling because it’s starving for return air.
- Failed blower motors and capacitors. A furnace that ran all summer to push cold air and then runs all winter to push heat through a leaking duct system wears out blower motors faster. We replace PSC and ECM motors and test the capacitor on every call.
- Short cycling from undersized returns. Many Denton homes built before central air was standard got furnaces added later, with ductwork never upgraded to match. The heat exchanger can’t get proper airflow, the limit switch trips, and the furnace runs in three-minute bursts.
- Burning smells on the first cold night. Dust that settled over the summer burns off the heat exchanger, and that’s normal. But if the smell persists, or if it’s sharp and acrid rather than dusty, shut the system down and call us. A cracked heat exchanger is a carbon monoxide risk, and we’ll test for it before we do anything else.
Pricing for Furnace Repair in Denton, TX
Most furnace repairs in Denton land between $150 and $700, with the part and the labor bundled into one written price before we start. A tune-up runs $80 – $200 and includes a full safety inspection of the heat exchanger, burner assembly, gas pressure, and controls. Our philosophy is simple: you get the repair price in writing, and if you’d rather put that money toward a new furnace, we’ll apply the diagnostic fee to the installation. No bait pricing, no price that shifts at the door. Call (361) 306-9515 and we’ll give you a firm quote for your specific system.
| Service | Denton Price Range |
|---|---|
| Furnace Repair | $150 – $700 |
| Furnace Tune-Up | $80 – $200 |
We Also Serve Cities Near Denton
Our Furnace Repair team serves Denton and the surrounding communities of Krum, Argyle, Sanger, and Aubrey. If you’re just outside the city line, you’ll get the same written pricing, same on-time arrival, and same one-year guarantee. For service across the Furnace Repair in Denton area, one call to (361) 306-9515 routes you to a live person who knows the coverage map and can schedule you immediately.
Serving Denton, TX - Our Local Coverage Area
We’re based in the Denton 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 Denton
Probably not. The most common cause of a burning smell on the first cold night in Denton is dust that accumulated over the summer burning off the heat exchanger and burner assembly, and it should clear within an hour. If the smell persists, sharpens, or you notice soot around the registers, shut the furnace down and call us at (361) 306-9515. We test the heat exchanger with a combustion analyzer and a visual inspection before we ever recommend a repair, because a cracked exchanger is a carbon monoxide risk, not a guess.
Use this rule: multiply the repair cost by the age of the furnace. A $400 repair on a 6 year old system is almost always worth doing. A $600 repair on an 18 year old furnace with a rusty cabinet, an older 80% AFUE rating, and a history of short cycling is a harder call, and we’ll give you the honest math. Our Furnace Repair technicians in Denton carry a worksheet that sizes up repair cost against system age and expected remaining life, and we’ll leave you with a written recommendation either way, never pressure. Call (361) 306-9515 to schedule a diagnostic and get the numbers for your specific furnace.
Yes, but the size of the drop depends on your current furnace’s efficiency and the condition of your ductwork. A furnace upgrade from an 80% AFUE unit to a 96% AFUE two-stage model can cut gas usage by roughly 15%, and that shows up on your Atmos bill every January. But in Denton homes with leaky slab ducts from clay-soil movement, sealing the returns and the supply runs can save as much as the efficiency jump itself. We measure static pressure before we sell a furnace because the efficiency number on the box only helps if the air can actually move through the system.
Short cycling in Denton almost always traces back to airflow, not the furnace itself. The limit switch trips when the heat exchanger can’t shed heat fast enough, and that happens when returns are undersized, filters are clogged, or slab ductwork has cracked and pulled apart. We see it constantly in older Denton neighborhoods where the soil shift cracked the return runs. We’ll measure your static pressure, inspect the accessible duct, and show you exactly where the restriction is before we quote a repair. Call (361) 306-9515 for a diagnostic that finds the cause, not just the symptom.
Furnace repair in Denton runs $150 – $700 for most jobs. Simple fixes like a flame sensor cleaning or a capacitor replacement land at the low end, while a gas valve or a blower motor pushes toward the higher end. A full tune-up costs $80 – $200. Every repair includes a written price before work starts and a written guarantee for a full year, and if it fails within that period, Dalton Heating & Air returns at no charge. Call (361) 306-9515 for an exact quote on your system, not a range.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Denton and the surrounding communities.