Need furnace repair services in Dallas?
- Simple first steps you can try
- Clear price ranges before you commit
- Independent local providers in our network
- No obligation
No obligation
Calm first steps when the heat fails
Furnace Repair Services for Homes That Won't Heat
A furnace that will not heat is stressful, especially on a cold morning. Companiesoff Heating & Air is a referral service. We do not repair furnaces. We explain the first steps, show what drives the price, and connect you with independent providers in our network.
This page works like a checklist. First, safety. Next, simple checks you can do yourself. Then, what a repair visit looks like and what common fixes usually cost in the U.S. Prices vary by job, so ask for a quote in writing before any work starts. Homes across the Dallas area often see mild winters, which means a furnace can sit unused for months and fail on the first cold night. A local provider can inspect it and explain your options in plain words.
Smell Gas? Stop and Leave First
A rotten-egg smell can mean a gas leak. Do these steps in order:
1. Do not flip switches, use a lighter, or unplug anything. 2. Get everyone outside, pets too. 3. From outside, contact your gas utility or emergency services. 4. Stay out until they say the home is safe.
Do not try to relight a pilot light. Repair can wait until you get the all-clear.
Carbon Monoxide Is a Separate Alarm
Headache, dizziness, nausea, or a sounding CO alarm means fresh air first. Go outside and contact emergency services. A cracked part or a blocked vent can push fumes into the home. Only a provider should inspect the furnace after that.
Calm First Steps for the First Hour
No gas smell and no alarm? Slow down. A cold house feels urgent, but clear steps help more than guessing.
- First, make the home safe. Add blankets and close doors to one room.
- Next, run the quick checks below.
- Then, write down what you see, hear, and smell.
- Last, reach a provider and ask for a quote in writing.
Quick Checks Before You Contact a Provider
First, check this. These take ten minutes and need no tools.
- Thermostat: set it to heat and raise the target five degrees above room temperature. Replace weak batteries.
- Power: look at the breaker. Many furnaces also have a switch on or near the unit that looks like a light switch. Make sure it is on.
- Air filter: a clogged filter can make a furnace shut off to protect itself. Swap in a clean one if yours is dirty.
- Vents: open the registers and move furniture away from them.
Do not open panels or touch gas parts. If a check fails twice, stop and get help.
Common Signs Your Furnace Needs Repair
Watch and listen for these:
- Cold air, weak air, or no air from the vents
- The furnace turns on and off in short bursts
- Banging, squealing, or rattling sounds
- A burning smell that lasts past the first run of the season
- Heat that is uneven from room to room
- Higher bills with no change in habits
The sooner you note these, the easier it is for a provider to find the cause.
Why Mild Winters Can Hide Problems
In a warm climate, a furnace may sit idle for months. Hot, humid summers bake attic and closet units. Dust, rust, and moisture build up. The first cold morning is when weak parts show up.
Many slab-on-grade ranch homes keep the furnace in a closet or a hot attic. Older pier-and-beam houses may have it in a tight crawl space. Hard-to-reach units can add labor time to a repair.
What Happens During a Furnace Repair Visit
A provider in our network will usually follow this order:
1. Ask what happened and when it started. 2. Check the thermostat, power, and filter. 3. Inspect the igniter, flame sensor, blower, and vents. 4. Test the safety controls and airflow. 5. Explain the cause and give a written quote before work begins.
Ask about the diagnostic fee up front, and whether it counts toward the repair.
Common Furnace Repairs
These are the fixes providers see most often:
- Igniter or pilot parts: a worn igniter stops the furnace from lighting.
- Flame sensor: when dirty, it shuts the burner off after a few seconds. Cleaning is often cheaper than replacing.
- Blower motor or capacitor: the fan will not start or runs weakly.
- Control board or thermostat: the signals between parts fail.
- Cracked heat exchanger: a safety problem that often points toward replacement.
Repair or Replace Your Furnace?
Use this list to decide:
- Age: many furnaces last about 15 to 20 years.
- Quote size: if the repair is near half the price of a new unit, consider replacing.
- Repeat repairs: two or three in one season is a warning sign.
- Safety: a cracked heat exchanger usually ends the repair path.
- Bills: rising bills can mean the unit is losing efficiency.
If you search for furnace replacement near me, ask the provider to price repair and replacement side by side, in writing.
What Drives the Price
No two jobs cost the same. These factors move the number:
- The part itself, and whether it is common or hard to find
- Labor time, which grows when the unit is in a tight attic or crawl space
- The age and model of the furnace
- Evening or weekend rates, which vary by provider
- Extra work found during the visit, like a dirty vent or a failed safety control
Why a Written Quote Matters
A written quote lists the part, the labor, and the total. It protects you from surprise add-ons. Compare it with the repair-or-replace list above, and take your time if the situation is safe.
Questions to Ask the Provider
- Is there a diagnostic fee, and does it apply to the repair?
- What caused the problem, in plain words?
- Is the part new, and is there a warranty on parts and labor?
- Is the quote written, with every line item?
- Is this repair safe to run until the part arrives?
Heating and Cooling Share Parts
Many furnaces share a blower and ductwork with the AC. A provider who offers HVAC service can check both. If summer cooling fails instead, emergency AC repair has its own page on this site.
Keep the Next Cold Snap Calm
- Change the filter on a regular schedule.
- Test the heat once before the cold season.
- Keep the area around the furnace clear.
- Save your notes and quotes in one folder.
If the heat fails again, Request a callback to check provider availability.
What's Included
Safety Guidance
Clear steps for gas smells and carbon monoxide alarms, so you know when to leave first.
Quick Checks
Simple thermostat, power, and filter checks to try before you contact a provider.
Provider Matching
We connect you with independent local providers in our network who handle furnace problems.
Price Clarity
Plain-language cost drivers and typical U.S. ranges, plus advice to get every quote in writing.
Typical Furnace Repair Costs
These are typical U.S. ranges only. Your price depends on the part, the labor, and how easy the furnace is to reach. Always ask for a written quote before work begins.
| Item | Typical range | Notes |
|---|---|---|
| Diagnostic visit | $75 – $200 | Some providers apply it to the repair |
| Igniter replacement | $150 – $450 | Common cause of no-heat calls |
| Flame sensor clean or replace | $100 – $300 | Cleaning costs less than a new part |
| Blower motor | $400 – $1,500 | Varies by motor type and access |
| Control board | $300 – $900 | Depends on furnace brand and age |
| Heat exchanger repair or replacement | $1,500 – $3,500 | Often leads to a replace-or-repair talk |
How It Works
Make It Safe
Check for gas smells or alarms, then get outside and contact emergency services if needed.
Run Quick Checks
Look at the thermostat, breaker, switch, filter, and vents before you ask for help.
Reach a Provider
Request a callback to check provider availability, or use the request form.
Review the Written Quote
Read each line, ask questions, and approve the work only when it makes sense.
Why Call Companiesoff Heating & Air
Safety Comes First
Gas and carbon monoxide steps are listed at the top so you can act before anything else.
Clear Checklists
Short numbered steps keep you calm and organized when the house is cold.
Honest Pricing
We explain what drives cost and why a quote in writing protects you.
Local Providers
Independent providers in our network know local homes, attics, and weather.
Other Services
Questions
Furnace Repair Services FAQ
Why is my furnace running but not heating the house?
Common causes include a dirty filter, a thermostat problem, a failed igniter, or a blocked vent. Try the quick checks first. If the air stays cold, a provider can find the cause.
How much does furnace repair cost?
Typical U.S. repairs run from about $100 for small fixes to over $1,500 for major parts. Price varies by job, so get a written quote first.
Should I repair or replace an old furnace?
If the unit is over 15 years old, needs repeated repairs, or has a cracked heat exchanger, replacement may make sense. Ask a provider to price both in writing.
Contact
Reach a local provider
Request a callback to check provider availability, or send a request through the form. Tell us what is wrong and a local provider can follow up with next steps.
No obligation