Family-owned in Denton since 1999 · Fixed Fast, Fixed Right
Furnace & Heat Pump Repair in Denton, TX
Same-day heating repair for gas furnaces, heat pumps and electric heat. You approve a flat-rate price before we start, and evenings and weekends cost the same.
Book online any time, or call. Ally, our AI booking assistant, answers 24/7.
★ 4.7 from 353 Google reviews · Since 1999 · TX Lic. TACLB011080C · $0-down financing
Fall Heating Offers in Denton
Get your heat checked before the first cold front, or get it fixed today for less.
Save $99 on Your Heating Diagnostic
Our $148 diagnostic drops to $49 when you approve the repair. A licensed tech finds the problem and shows you a flat-rate price before any work starts. Same price on evenings and weekends.
$148 diagnostic/dispatch fee. $99 credited when the diagnosed repair is approved and completed. One system per visit. Expires 1/1/2027.
$79 Fall Heating Safety Tune-Up
A 17-point heating safety check, including a carbon monoxide test and heat exchanger inspection. For new customers and Express Comfort members.
$79 per system. New customers and Express Comfort members. Expires 11/15/2026.
New Furnace or Heat Pump? Save $500
See your price online before anyone comes out. Book your free in-home visit from your quote and buy online to get $500 off, with $0 down and no interest for up to 18 months. Or pick a bonus on a Better system.
See S6 for details. Expires 12/15/2026.
Why Denton homeowners choose Cogburn's for heating
Same-day heating repair
Same-day service is available within about 20 miles of Denton. Book 24/7 online or by phone.
Flat-rate pricing
ou see and approve the price before any work starts. It doesn't change if the job takes longer.
Licensed and local since 1999
Family-owned, based on Woodrow Ln in Denton. TX Lic. TACLB011080C.
No overtime charges
Evenings and weekends cost the same as weekdays. A Saturday no-heat call costs the same as a Tuesday.
1-year repair warranty
Every repair is covered for a year. Members get 2- or 3-year coverage.
Prices online first
See furnace and heat pump replacement prices online in minutes, with no sales call.
Heating Problems We Fix in Denton
We repair all major brands of gas furnaces, heat pumps and electric air handlers. These are the calls we get most often.
No heat or cold air from the vents
Ignition, flame sensor, gas valve or a heat pump stuck in defrost.
Banging, squealing or rattling
Blower motor, inducer motor, belts or burners.
Burning or strange smell
Dust burning off on the first cold day is normal. A strong electrical smell is not.
Furnace turns on and off
Short cycling from a dirty filter, flame sensor, limit switch or wrong sizing.
Blank thermostat or no power
Tripped breaker, blown fuse, float switch or a wiring problem.
Heat pump iced over
Defrost board, sensor, refrigerant or airflow problem.
Not sure what's wrong? Try our 5-minute checklist first
Getting Your Heat Back Is Simple
Book online or call, any time
Book online in about a minute, or call (940) 229-6243. Ally answers and books 24/7.
We diagnose and quote
A licensed tech finds the problem and shows you a flat-rate price before starting.
We fix it right
Most repairs are finished on the first visit and come with a 1-year warranty.
What's in the $79 Fall Heating Safety Tune-Up
✓ Carbon monoxide test at the furnace and in the living space
✓ Heat exchanger inspection for cracks and rust
✓ Burner inspection and cleaning ✓ Flame sensor cleaned
✓ Ignitor tested (40–70 ohm reading)
✓ Inducer motor vacuum port cleaned
✓ Gas pressure and gas valve check
✓ Flue and venting draft check
✓ Safety and limit switch test
✓ Blower motor, wheel and capacitor check
✓ Electrical connections tightened, and voltage and amperage measured
✓ Thermostat calibration and heating cycle test
✓ Air filter check (replaced if you have one on hand)
✓ Temperature rise across the furnace measured
✓ Ductwork inspected for air leaks
✓ Ducts checked for excessive dirt and microbial growth
✓ Heat pumps: defrost cycle, reversing valve and backup heat strips tested
Need a New Furnace or Heat Pump? See Your Price in Minutes
Answer a few questions about your home and see real system options and price ranges online. No appointment and no sales call needed. When you're ready, we confirm everything with a free, no-pressure in-home visit.
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Carrier, Amana, GE and American Standard
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Gas furnaces, heat pumps and dual-fuel systems, up to 19.2 SEER2
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Professional installation, startup and walkthrough
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$0 down, no interest for up to 18 months on approved credit
Fall Replacement Offers, Through December 15, 2026
CURRENTLY BEING UPDATED
$0-Down Heating Financing
No interest for up to 18 months
$0 down and no payments or interest for up to 18 months on qualifying systems and major repairs.
Low monthly payments
$0 down, payments as low as $110 a month, and no penalty for paying early.
Subject to credit approval. Financing through GoodLeap.
Rated 4.7★ by 353 Denton-Area Homeowners on Google
"They are always prompt in their response and in getting the problem fixed."
"Very professional, knowledgeable, prompt and friendly."
Save Every Year With a Cogburn's Membership
Tune-ups twice a year, same-day service, repair discounts and longer repair warranties. Cancel anytime.
Energy Saving Agreement
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$17.99/month or $215.88/year
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2 tune-ups included
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15% off repairs
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Priority same-day service
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3-year repair warranty
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$100 instant credit
Express Comfort
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No annual fee
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$89 tune-ups, or the current promo price when it's lower (now $79)
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5% off repairs
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Same-day service
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2-year repair warranty
Try These Before You Call
Many no-heat calls come down to a thermostat setting, a tripped breaker or a dirty filter. Check these first. It could save you a service call.
Smell gas?
Leave the house now. Once you're outside, call your gas company or 911. Don't use light switches, phones or flames indoors.
Heating Repair in Denton at a Glance
Company Cogburn's Heating & Air Conditioning, family-owned since 1999
Address 215 S Woodrow Ln, Denton, TX 76205
Phone (940) 229-6243
License TX Lic. TACLB011080C
Reviews 4.7★ from 353 Google reviews
Technician hours Mon–Fri 8 a.m.–8 p.m., Sat–Sun 9 a.m.–5 p.m.
Booking 24/7 online, or by phone with Ally, our AI booking assistant
Same-day service Available within about 20 miles of Denton
Diagnostic $148, with $99 off when you approve the repair (through 1/1/2027)
Pricing Flat rate, approved before work starts, no overtime charges
Repair warranty 1 year (2–3 years for members)
Systems serviced Gas furnaces, heat pumps, electric air handlers, all major brands
Brands installed Carrier, Amana, GE, American Standard, up to 19.2 SEER2
Financing $0 down, no interest for up to 18 months (GoodLeap, approved credit)
Cities We Serve for Heating Repair
Denton · Corinth · Argyle · Flower Mound · Highland Village · Lewisville · Lake Dallas · The Colony · Little Elm · Oak Point · Savannah · Sanger · Krum · Aubrey · Pilot Point · Ponder · Justin · Cross Roads · Bartonville · Northlake, and nearby North Texas cities.
Denton Heating Repair Questions, Answered
How much does furnace or heat pump repair cost in Denton, TX?
It depends on what failed. Our diagnostic is $148, and right now you save $99 when you approve the repair. A licensed technician shows you a flat-rate price before any work starts, and that price doesn't change if the job takes longer. Evenings and weekends cost the same, and repairs come with a 1-year warranty.
Do you offer same-day heating repair in Denton?
Yes. Same-day furnace and heat pump repair is available within about 20 miles of Denton. Book online or by phone any time, and we'll confirm the earliest opening.
Do you offer 24-hour emergency heating repair?
You can book 24/7 online or through Ally, our AI booking assistant, but our technicians don't run overnight calls. They work Monday through Friday 8 a.m. to 8 p.m., and Saturday and Sunday 9 a.m. to 5 p.m. If you smell gas, leave the house and call your gas company or 911.
Do you charge extra for evening or weekend heating repair?
No. We don't charge overtime or after-hours fees. An evening or weekend heating repair costs the same as a weekday visit.
Why is my furnace running but blowing cold air?
The most common causes are a thermostat set to Fan On instead of Auto, a dirty air filter, a dirty flame sensor or an ignition problem. Heat pumps also blow cool air for a few minutes during a defrost cycle. Check the thermostat and filter first. If it keeps happening, book a diagnostic.
Why is my heat pump covered in ice?
A light frost in cold, damp weather is normal, and the defrost cycle clears it. Solid ice that doesn't melt usually points to a defrost control, sensor, airflow or refrigerant problem that needs a technician.
Why does my furnace keep turning on and off?
Short cycling is usually caused by a clogged filter, a dirty flame sensor, an overheating limit switch, a thermostat problem or a system that's the wrong size for the house. Replace the filter first. If it keeps cycling, book a diagnostic.
Can I fix my furnace myself?
You can safely replace the filter, check the thermostat settings and batteries, and reset a tripped breaker. Anything involving gas, wiring or the burners should be handled by a licensed technician.
How often should a furnace or heat pump be serviced in North Texas?
Once a year in the fall, before the first cold front, plus an AC tune-up in spring. Our $79 Fall Heating Safety Tune-Up for new customers and Express Comfort members includes a carbon monoxide test, and Energy Saving Agreement members get both tune-ups included.
Should I repair or replace my furnace or heat pump?
Replacement usually makes sense when the system is 15 years old or older, needs a repair that costs close to half the price of a new one, or has a cracked heat exchanger. We give you upfront prices for both options, and our Instant HVAC Quote shows replacement prices online.
How much does a new furnace or heat pump cost in Denton?
The price depends on your home's size, the type of system, its efficiency and the condition of your ductwork. Our Instant HVAC Quote shows system options and price ranges online in a few minutes, with no appointment needed. Then we confirm everything with a free, no-pressure in-home visit.
What heating brands do you repair and install?
We repair all major brands of gas furnaces, heat pumps and electric air handlers. For new systems we install Carrier, Amana, GE and American Standard equipment with efficiency ratings up to 19.2 SEER2.
Are there heating rebates or tax credits in Denton?
Denton Municipal Electric customers may qualify for GreenSense incentives on high-efficiency heat pumps. Funding resets each October 1 and can run out. The federal heat pump tax credit ended for systems installed after December 31, 2025.
What areas do you serve for heating repair?
We're based at 215 S Woodrow Ln in Denton and serve Denton, Corinth, Argyle, Flower Mound, Highland Village, Lewisville, Lake Dallas, The Colony, Little Elm, Oak Point, Savannah, Sanger, Krum, Aubrey, Pilot Point, Ponder, Justin, Cross Roads, Bartonville, Northlake and nearby North Texas cities. Same-day service is available within about 20 miles of Denton.