Say you come home after a long day and the house feels like a cooler. The vents are silent. The thermostat glows, but nothing happens. A furnace that quits is stressful, and it rarely picks a convenient moment.
Oldestgerman Heating & Air is a referral service. We do not repair furnaces ourselves. We connect homeowners in the Aurora area with independent providers who handle heating and cooling work. This page walks you through safety, simple checks, common problems, and what to ask, so you can make a calm choice. A little prep, like photos and notes, helps every estimate go smoother and keeps the visit from taking over your week.
Smell Gas? Put Safety First
Say you step in from the cold and catch a rotten-egg smell near the utility closet. Stop right there. Do not flip switches, light anything, or hunt for the source.
Leave with everyone, pets included. Call your gas utility or local emergency number from outside. Wait for the all-clear before any provider visits.
Carbon Monoxide Warning Signs
A sounding detector, a pounding headache, or sudden dizziness means fresh air first. Get everyone outdoors, then call emergency services. Do not go back in to inspect the furnace.
When the Heat Quits on a Cold Night
Picture a packed weeknight. Homework is spread on the table, dinner is half done, and the hallway starts to chill. At altitude, thin air and snow against the walls make a house lose warmth fast.
If the home is safe, a few calm steps come next. Many providers can respond quickly, though availability varies by day and season.
Quick Checks Before You Call
Some problems are small. A two-minute look can save a visit, or at least give a provider useful clues.
Thermostat Settings
Confirm it is set to heat and the target is above room temperature. Fresh batteries fix more blank screens than you would expect.
Power and Breaker
Check that the furnace switch is on and the breaker has not tripped. Reset a breaker once only. If it trips again, leave it alone.
The Air Filter
A clogged filter can choke airflow and shut the system down. If it looks gray and thick, swap it.
What Not to Do
Do not open sealed panels or poke at burners and wiring. Those jobs belong to a trained provider.
Signs Your Furnace Needs Repair
Not every problem is a total shutdown. Some arrive as small oddities, like a bedroom that never warms up.
- Banging, squealing, or rattling when the blower starts
- Warm air that turns cool again within minutes
- Short bursts of heat, then silence, again and again
- Dust or a burning smell when a cycle begins
- Rooms that stay chilly while others feel fine
Dry winter air can make some smells seem stronger. Still, a strange odor deserves a look.
Snap It, Note It
Before anyone arrives, take a few minutes. Photograph the furnace, the label with model details, and any error light. Jot down when the trouble began and what you heard.
This gives each provider the same facts, so estimates are easier to compare. It also helps if you later talk with your insurer.
What Happens During a Repair Visit
The provider listens first, then checks the thermostat, ignition, airflow, and safety controls. Next you get a plain explanation of what failed and what the fix involves.
Ask for the quote in writing before work starts. Simple parts may be handled during the visit. Special-order parts can mean a second trip.
Fit the Week
Say you work from home on Tuesdays and the kids are out by seven. Tell the provider that up front. Ask about arrival windows and whether someone must be home the entire time.
A clear plan keeps disruption low. Clear a path to the furnace and tuck pets away before they arrive.
Common Furnace Repairs
- Ignitor or flame sensor replacement
- Blower motor or capacitor repair
- Thermostat replacement or wiring fixes
- Draft inducer and pressure switch work
- Gas valve or control board service
Newer frame homes often have compact furnace closets, so access can shape how long a repair takes. Basement units are usually easier to reach.
Repair or Replace?
A furnace past its mid-teens that keeps failing is a hard call. If the quote is a large share of a new unit's price, ask for both options. Searching furnace replacement near me can be tempting, but compare a written repair quote first.
A cracked heat exchanger is a safety issue, and many providers will recommend replacement. Ask them to show you the problem.
Questions to Ask the Provider
- Do you handle both heating and cooling, including emergency AC repair in summer?
- Is the diagnostic fee separate from the repair price?
- Will the written quote list parts and labor?
- What warranty comes with parts and workmanship?
- How long should the visit take?
Insurance and Your Records
Some policies may cover sudden damage, but not wear and tear. Check your policy. Providers can often help document damage for a claim.
Calm Before the Visit
Keep a blanket handy, close off unused rooms, and keep the thermostat steady. Then Request a callback to check provider availability for HVAC service near you.
What's Included
Fault Diagnosis
A provider traces why the furnace stopped, checking controls, ignition, airflow, and safety switches before suggesting any fix.
Part Repairs
Worn ignitors, sensors, motors, and switches can often be replaced without changing the whole unit.
Safety Checks
Providers look at burners, venting, and the heat exchanger to help spot carbon monoxide risks.
Written Estimates
You can request an itemized quote showing parts, labor, and any extra visits before agreeing to work.
Typical Furnace Repair Costs
Prices depend on the furnace, the part, and how hard it is to reach. These typical U.S. ranges are only a guide, so always get a written quote before work begins.
| Service | Typical range | Notes |
|---|---|---|
| Diagnostic visit | $75 – $200 | Often applied toward repair if you proceed |
| Ignitor or flame sensor | $100 – $400 | Common cause of no-heat calls |
| Thermostat replacement | $100 – $350 | Higher for smart models |
| Blower motor repair | $300 – $900 | Varies by motor type |
| Control board | $300 – $850 | Parts availability matters |
| Heat exchanger repair | $1,000 – $3,500 | Often leads to replacement talk |
How It Works
Put Safety First
If you smell gas or a carbon monoxide alarm sounds, leave the house and call emergency services.
Do Quick Checks
Look at the thermostat, breaker, and filter. Then take photos and notes.
Get Connected
Request a callback or send the request form to reach a local provider.
Review the Written Quote
Compare the repair details and costs, then choose the option that suits you.
Why Call Oldestgerman Heating & Air
Referral, Not Repair
Oldestgerman Heating & Air connects you with independent providers. The providers in our network do the actual work.
Built Around Routines
Tell providers your schedule so visits fit your week with less disruption.
Paperwork-Ready Tips
Simple photo and note habits keep your estimates and records organized.
Plain Guidance
Clear advice on safety, checks, and questions to ask, with no pressure.
Other Services
Need furnace repair help in Aurora?
Tell us what your system is doing and when you are home. We will point your request toward independent local providers in our network.
No obligationFurnace Repair Help FAQ
Why is my furnace running but not blowing warm air?
Common causes include a dirty filter, a failed ignitor, a faulty flame sensor, or a thermostat problem. Replace the filter and check settings first. If the air stays cool, a local provider can diagnose it.
How much does furnace repair usually cost?
Most repairs fall between about $150 and $1,200, depending on the part and the labor involved. Costs vary by job, so request a written quote before any work begins.
Should I repair or replace my old furnace?
If the unit is more than about 15 years old and keeps breaking down, replacement may make sense. Ask a provider for both written options so you can compare costs and safety.
Request a callback
Tell us what your system is doing and when you are home. We will point your request toward independent local providers in our network.
No obligation