You smell natural gas.
Leave immediately without touching switches or equipment. From outside, call 911 and your gas provider.
When Losing Heat Can't Wait Until Morning
One cold night is all it takes to realize how much a working heating system matters. Maybe the furnace has stopped firing, or the heat pump is running without warming the house. Whatever failed, the immediate concern is how to get the heat back without making the problem worse.
CityLine Air Conditioning repairs gas furnaces and heat pumps across Dallas-Fort Worth, including urgent breakdowns during winter cold fronts. Our technicians identify what's preventing the system from heating, explain the available repair options, and work to restore heat as safely and promptly as possible.
- 24/7live phone answering, including nights, weekends, and holidays.
- 2 Hoursin the scheduled technician arrival window, so you have a clearer idea of when to expect service.
- 1,200+ Membersin our Healthy Air Conditioner Club, with priority scheduling among their membership benefits.
- 365 Daysof money-back protection on qualifying work, subject to our guarantee terms and an opportunity to correct any issues.
Which No-Heat Problems Need Immediate Help?
Losing heat during a DFW freeze deserves a call, especially if the indoor temperature keeps falling. But some warning signs mean you should leave the house instead of trying to restart the equipment.
Your carbon monoxide alarm sounds.
Get everyone outdoors, call 911, and stay out until emergency responders say it's safe.
The house keeps getting colder.
Call now if you have no heat, especially with infants, older adults, or vulnerable people at home.
The furnace starts, then shuts off.
A flame sensor, ignition fault, or safety control may be interrupting the heating cycle. Call tonight if it keeps happening and the house is getting colder.
The heat pump can't keep up.
Persistent ice, weak heating, or an outdoor unit that won't start needs professional diagnosis. Switch to Emergency Heat if your thermostat has it, then call.
The heating circuit keeps tripping.
Leave the equipment off and call now. Repeatedly resetting a breaker can make an electrical problem worse.
Not sure whether to request an emergency visit? If your home is getting dangerously cold, call and explain the situation. For a system that still runs but isn't heating well, ask about furnace repair or heat pump repair. Repeated breakdowns may make furnace installation and replacement worth comparing. Arrange furnace maintenance once the immediate problem is resolved.
How Much Is Emergency Heating Repair in DFW?
A late-night furnace breakdown is stressful enough without wondering what the visit will cost. During the heating season, our $89 diagnostic fee stays the same, whether the appointment falls on a weekday, evening, or weekend. The actual repair cost depends on what failed and which parts are needed.
Our technician will identify the problem and give you a written price before starting repairs. If the work is approved and completed during that visit, the diagnostic fee is deducted from the bill. Healthy Air Conditioner Club members also receive emergency service charge benefits under their membership.
- $89
During the heating season, our $89 diagnostic fee stays the same, whether the appointment falls on a weekday, evening, or weekend.
- 2 Hours
in the scheduled technician arrival window, so you have a clearer idea of when to expect service.
What to Check Before Heating Help Arrives
Safe Steps for Furnaces and Heat Pumps
The right next step depends on how your home is heated. These checks are for a normal no-heat problem, not a gas leak or carbon monoxide alarm. If either is suspected, leave the house and call 911 instead.
| Question | Gas furnace | Heat pump |
|---|---|---|
| What should I check? | Confirm the thermostat is on Heat and set above room temperature. Check the filter if it's safe to reach. | Check that the thermostat is on Heat and the outdoor unit has power. Look for any displayed error message. |
| What if the breaker tripped? | If it trips again or you notice an electrical smell, leave it off and call. Never keep resetting it. | The same rule applies to the indoor and outdoor equipment. Repeated trips need professional attention. |
| Is there backup heat? | A standard gas furnace doesn't have an Emergency Heat thermostat mode. | Some systems have auxiliary or Emergency Heat. Use it only if your equipment supports it and according to its instructions. |
| What should I avoid? | Don't open burner compartments, bypass safety switches, or use a gas stove to heat the house. | Don't chip ice off the outdoor unit or open electrical panels. Let the technician diagnose the problem. |
Why DFW Homeowners Trust Us With Heating Emergencies
Help That Goes Beyond Getting an Appointment
You Know Who's Coming to the Door
An unexpected service visit shouldn't mean opening the door to a stranger. Before arrival, we send the technician's photo, a short introduction, and tracking information. Expect a uniformed technician in a marked company van.
Gas Furnaces and Heat Pumps, Both Covered
Not every home in DFW heats the same way. Our technicians repair gas furnaces and electric heat pumps, including equipment installed by other contractors. There's no need to have purchased the system from us to request service.
Priority Service for Club Members
Healthy Air Conditioner Club members receive priority scheduling when heating calls increase. Membership also includes repair savings and no emergency service charge, giving regular customers additional benefits when unexpected problems occur.
How We Get the Heat Running Again
- We Start With the Heating Equipment
Our technician looks at how the furnace or heat pump responds when heating is requested. That gives us a starting point for understanding where the system is failing.
- We Trace the Problem to Its Source
A furnace that won't ignite and a heat pump that won't defrost need very different attention. We test the relevant components rather than treating every no-heat call the same way.
- We Explain the Findings
Once we know what's wrong, we put the repair cost in writing. If the problem raises concerns about the equipment's overall condition, we'll explain those too before proceeding.
- We Check the Results
After the approved work is complete, we test the system's operation. If a necessary component isn't available, we'll explain what's still needed and discuss the next steps.
Book Now
No cooling or no heat? Call (972) 776-4455, day or night.
Need Heating Repair Before the House Gets Colder?
Call Us and We'll Take It From There
There's no need to know whether the problem is electrical, mechanical, or something else. Tell our office team what's happening, and we'll help arrange the appropriate service. Our phones are answered around the clock, including when the office is closed.
Calling About an Urgent Breakdown?
The quickest way to discuss an urgent situation is by phone. Call (972) 776-4455, explain the problem, and our team will check what service options are available.
Prefer to Send a Request Online?
Our online form lets you submit the service details without making a call. Once the request reaches our office, the team will contact you to confirm an appointment. Submitting the form doesn't automatically reserve a time.
4.7stars from 700+ Google reviewsNo heat? Call (972) 776-4455 or request emergency heating repair online.
Emergency Heating Repair Across Dallas-Fort Worth
Based in Richardson, our heating technicians serve homes throughout the northern Dallas-Fort Worth Metroplex and surrounding communities. Coverage reaches established neighborhoods, newer residential developments, and areas farther west toward Fort Worth.
Some Dallas and Fort Worth locations are served by ZIP code rather than citywide. Check the communities listed below, or call with your address to confirm coverage and available emergency heating service.
Our Service Area
- Richardson
- North Dallas (75225, 75229, 75230)
- Carrollton
- Irving
- Hurst
- Euless
- Bedford
- North Richland Hills
- Haltom City
- Fort Worth (76179)
- Grapevine
Don't see your street? Call (972) 776-4455 and ask.
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The technicians were professional and very knowledgeable. We had our AC serviced, new Gas Furnace installed with air purifier, and also had our air ducts cleaned. I would go to CityLine first before any other company!
Kyle Cooper
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The technician, Alberto, arrived on time, knew the equipment he was working on, was very professional, and was happy and very thorough.
Alann Nevarez
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They contacted us in a timely manner, were on time for the service call and took care of the issues.
Jeffrey N.
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Alberto Nevarez was great. Helped inform us of everything we needed to know plus extra. He went above and beyond to educate us as new home buyers of our systems and needed maintenance. 10 out of 10 would recommend
Tony A.
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CityLine came to my home to check my unit for heating for this winter and were excellent. Technician Jay Jones was superb! He explained in detail everything he reviewed and gave me confidence in the service provided. 10/10! Would recommend to everyone!
Ryan F.
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Travis came by to do a check up on the system. He's very courteous and friendly. All is well with the system.
Adrien C.
Recent Heating Repair Work
No-Heat Troubleshooting Guides
November 26, 2023What To Check When Furnace Stops Working
A furnace is a heating system that is commonly used in households to provide warmth during colder months. It is an essential appliance that requires proper maintenance and attention to function efficiently.
March 11, 2019Common Winter Heating Problems and What to Do About Them
When we get to this point in the winter season, you’re relying on the heater in your home more than ever to keep you and your family comfortable.
April 8, 2019Deciphering That Furnace Problem You’re Having
When you’re having an issue with the furnace is your home, it’s more than likely that your first move is to contact a team of service professionals in the area that you trust.
Emergency Heating Repair FAQs
Yes. Most furnace diagnostics and many repairs can be performed during freezing weather. Whether the work can be completed immediately depends on the fault, equipment access, and parts availability.
A defrost issue, electrical fault, or failing component could be responsible. Some frost is normal, but a heat pump that cannot maintain indoor temperatures needs professional diagnosis.
Often, yes. Age alone doesn't determine whether a system is repairable. The failed component, equipment condition, and parts availability help determine whether another repair is practical.
Yes, with precautions. Keep it at least three feet from combustible materials, plug it directly into a wall outlet, and never leave it running while sleeping or unattended.
Usually not. Gas furnaces need electricity for their controls and blower motors. Once power returns, the furnace may restart normally, provided there are no additional faults.
No heat during a DFW cold snap? Call (972) 776-4455. Tell us what's happening, and we'll help you understand the next step.
(972) 776-4455Office hours 8 AM to 6 PM, with phones answered around the clock.