Furnace Repair in North Fort Worth (76244, 76137, 76131)
Texas Discount Air is a licensed heating company in North Fort Worth that repairs home furnaces in the 76244, 76137, and 76131 ZIP codes and nearby cities. Our $29 service call includes the trip, the diagnosis, and small fixes. Larger repairs get an exact flat-rate price before any work begins.
WARNING SIGNS
Signs Your Furnace Needs Repair
Blowing Cold Air
The burners likely aren’t lighting, so the fan is moving unheated air. Often the igniter, flame sensor, or gas valve. It can also happen when the furnace overheats and a safety switch shuts the burners off while the fan keeps running.
Short Cycling
Turning on and off every few minutes. Starting up is the hardest part of a furnace’s job, so constant restarts wear out parts faster and waste gas. Check the filter first, since a clogged filter is a common cause.
New Noises
Bangs, squeals, or grinding usually mean a part is wearing out or gas is lighting late. They’re worth a call before they become a bigger repair.
Higher Gas Bills
If your bill jumped but the weather didn’t change, the furnace may be running longer to make the same heat, often because of a dirty filter, a failing part, or an aging system.
Uneven Heat
Cold rooms, or a house that never reaches the set temperature, can mean restricted airflow, leaky ductwork, or a system that can no longer keep up.
Water Around the Furnace
High-efficiency furnaces pull so much heat out of the exhaust that it cools and turns to water, which drains away through a small line. If that line clogs, water can back up and leak, and a safety switch shuts the furnace off.
COMMON REPAIRS
Common Furnace Repairs
- Igniter: heats up red-hot to light the gas. Igniters wear out over time from heating and cooling every cycle, and they’re fragile. When one fails, the furnace runs but never heats.
- Flame sensor: a small metal rod that confirms the flame is actually burning. Over time it gets coated with buildup and can’t read the flame, so the furnace shuts the gas off seconds after lighting, as a safety measure. Often it just needs cleaning.
- Gas valve: opens to send gas to the burners when the furnace calls for heat. If it fails, the burners can’t light.
- Limit switch: a safety switch that shuts the burners off if the furnace gets too hot. Usually it’s doing its job because something is blocking airflow, like a clogged filter or closed vents. Sometimes the switch itself wears out.
- Blower motor and capacitor: the blower pushes warm air through your vents. Many blower motors rely on a capacitor, a small part that gives the motor the boost it needs to start and keep running. When either fails, the furnace may heat but no air comes out, or the motor hums and won’t start.
- Inducer motor: a small fan that pulls exhaust out of the furnace and sends it outside. The furnace checks that this fan is working before it lights, so if it fails, the furnace won’t start. This prevents exhaust, including carbon monoxide, from building up.
- Control board: the furnace’s brain, which runs each step in the right order. Power surges, heat, and age can damage it, causing the furnace to act erratically or not start.
- Condensate drain: on high-efficiency furnaces, carries away the water created when exhaust cools. A clogged drain can leak and will shut the furnace off.
KEEP IT RUNNING
How to Keep Your Furnace Running
- Change the filter every 1 to 3 months for standard 1-inch filters, and more often with pets. A clean filter keeps air moving, so the furnace doesn’t overheat or work harder than it has to.
- Get a tune-up every fall, before the first cold night. Small problems, like a dirty flame sensor, get caught before they leave you without heat, and the furnace’s safety controls get checked. See our tune-up packages.
- Keep the area around the furnace clear. Furnaces need open space for air and access, and stored items like paint, cleaners, or gas cans give off fumes that can catch fire near a gas flame.
- Keep vents open, even in rooms you don’t use. Closing vents raises the pressure in your ductwork, which makes the blower work harder, can make the furnace overheat, and pushes more heated air out through duct leaks.
- Install a carbon monoxide alarm near the bedrooms if you have gas heat. Carbon monoxide has no color or smell, so an alarm is the only way to know it’s there.
REPAIR OR REPLACE
Repair or Replace?
Furnaces often last around 15 to 20 years. Years of heating up and cooling down wear on the metal parts, and older furnaces are generally less efficient than new ones, so they use more gas to make the same heat. If yours is older and breaking down often, our technician will tell you honestly whether a repair still makes sense. When replacement is the better value, the in-home estimate is free. New installations include a 10-year parts warranty, extended labor warranties are available, and financing is available for new equipment and repairs over $500, with approved credit.
HOW PRICING WORKS
Simple, Upfront Pricing
$29 Service Call
A technician comes to your home and diagnoses the problem. Small fixes, like a loose wire or a filter change, are included.
Flat-Rate Quote
For larger repairs, you get the exact price before any work starts. No surprises and no overtime charges.
You Decide
Approve the repair and the $29 service call is waived. Financing is available for new equipment and repairs over $500, with approved credit.
SAFETY FIRST
When It’s an Emergency
According to Atmos Energy, if you smell gas, leave the house right away. Once you’re safely away, call 911 and your gas company’s emergency line. For most homes with natural gas in our area, that’s Atmos Energy at 866-322-8667. Don’t flip light switches, use your phone inside, or try to relight the furnace — a tiny spark from a switch or electronics can ignite gas that has built up in the air.
If your carbon monoxide alarm goes off, get everyone outside and call 911. Carbon monoxide has no color or smell, so the alarm is the only warning you’ll get. A gas furnace can release it if the fuel isn’t burning cleanly, the exhaust is blocked, or the part that keeps exhaust separate from your home’s air (the heat exchanger) is cracked.
If you have gas heat and no carbon monoxide alarm, install one near the bedrooms, so it can wake you up at night.
SERVICE AREA
Furnace Repair Near You
We repair furnaces in North Fort Worth (76244, 76137, 76131) and nearby Keller, Watauga, Saginaw, Haslet, Roanoke, Haltom City, North Richland Hills, and more.
Not sure if we cover your address? Text “Service area?” and your ZIP code to (817) 874-5513.
WHO WE SERVE
Homes Only
We repair heating systems in homes only — not businesses, apartment complexes, or vehicles. If you rent, please have your landlord or property manager contact us. They own the system, so they’re the ones who approve and pay for repairs to it.
REVIEWS
What Our Customers Say
★★★★★
“
We have a 9 month old baby and our AC went out 12pm Monday August 17th. Texas Discount Air had a tech out in 30 minutes and determined our 1980’s AC system finally needed to be replaced. We were able to get the whole system ripped and replaced and running by 3pm Today, Tuesday August 18.
Brand new 5 ton 14.5 seer system with ecobee wifi thermostat within 24 hours of outage. 5/5 stars for price, quality and timeliness. Excellent privately owned local company.
Thank you guys.
Jacob W. · August 2026 · Google
★★★★★
“
Todd did an excellent job repairing our ac after the thunderstorm damage. The quote was reasonable. No extra costs added on last minute. We finally found a great technician we can trust.
Vera W. · May 2022 · Thumbtack
★★★★★
“
I just had a great experience with Texas Discount Air! They came to my home and quickly fixed my furnace fuse and heating and cooling system. The technician was super friendly, professional, and honest, and the price was great. Now my AC and heater work perfectly. Fast, reliable service. I’m giving Texas Discount Air ⭐⭐⭐⭐⭐
Vaibhav S. · 2025 · Google
★★★★★
“
Very quick and professional service. Todd was at my house working on my AC within the hour of posting my project. He was very friendly and provided excellent service. I would definitely recommend him and use him for future AC issues.
Claudio V. · December 2016 · Thumbtack
★★★★★
“
I randomly looked up Texas Discount Air and filled up a form online for a quick diagnosis ( they had unbeatable rates for a service call $29 ).I received a SMS to confirm and schedule. Todd arrived on time, diagnosed and fixed the problem in a flash and even did not charge me coz it was a simple fix. WOW!!! Who does that anymore ?
Tony P. · 2024 · Google
★★★★★
“
ACs been running poorly, $500 electric bill was the final straw. Called Todd assuming freon was low. His equipment showed it was still full, so he did an inspection on the unit to find back coil covered in debris (forgot to clean!). At no charge, at the absolute minimum he is an honest man, which is everything today. Will use in future. Thank you, sir.
Joseph B. · 2023 · Google
QUESTIONS
Furnace Repair FAQ
Need Heating or AC Repair?
$29 service call, free with any repair.