Same-day furnace repair across our service area. Flat-rate pricing — you know the cost before we touch anything. NATE-certified technicians with the parts to fix it on the first visit.
Gas, electric, or heat pump — we carry parts for all major brands and diagnose most issues in under an hour.
The hot surface igniter and flame sensor are the most common furnace failures. Symptoms: furnace won't light, lights then shuts off immediately, or cycles on and off rapidly.
The blower circulates warm air through your home. A failed motor or capacitor causes weak airflow, no airflow, or a furnace that heats but can't distribute the air.
The draft inducer pulls combustion gases out before ignition. A failed inducer prevents the furnace from starting the ignition sequence. Common symptom: humming sound, then nothing.
The control board coordinates every furnace function. A failed board often presents with error codes, intermittent behavior, or multiple simultaneous failures.
A cracked heat exchanger can allow carbon monoxide into your living space — a serious safety issue. We inspect every heat exchanger thoroughly and give you an honest recommendation.
These symptoms mean it's time to call. Don't wait — many small furnace issues become larger (and more expensive) problems when ignored.
Could be igniter, control board, thermostat, or gas supply issue
Classic flame sensor failure — inexpensive repair, very common
Igniter not firing, gas valve issue, or heat exchanger problem
Blower motor failing, duct leak, or filter clog restricting airflow
Blower wheel, motor bearings, or loose heat exchanger — don't ignore
Evacuate immediately — call us for emergency heat exchanger inspection
Should be blue — yellow/orange can indicate combustion or CO issue
Overheating, dirty filter, or heat exchanger — causes early system failure
We know you need your heat back fast. Here's exactly what happens when you call HVAC Services Demo for furnace repair.
Call (555) 010-0100 or book online. Tell us your symptoms and we'll dispatch the right technician — often same day, sometimes within hours.
Our NATE-certified tech inspects your furnace, identifies the root cause, and gives you a flat-rate quote — before touching anything. No diagnostic charge if you approve the repair.
You decide — no pressure. If the repair cost doesn't make sense for the age of your system, we'll tell you that honestly instead of taking your money for a short-term fix.
We complete the repair, run a full system test including safety checks, and make sure your heat is working properly before we leave. 1-year parts and labor warranty on every repair.
You know the price before we start. Always. No hourly rates, no add-ons once work begins.
| Repair | Price Range |
|---|---|
| Hot surface igniter | $180–$280 |
| Flame sensor cleaning/replacement | $150–$240 |
| Blower motor | $320–$580 |
| Blower wheel/fan | $180–$340 |
| Capacitor (start/run) | $90–$180 |
| Draft inducer motor | $350–$620 |
| Control board | $380–$680 |
| Gas valve | $280–$520 |
| Pressure switch | $120–$220 |
| Limit switch | $120–$200 |
| Thermocouple/thermopile | $100–$200 |
| Heat exchanger repair/replace | from $650 |
All prices include parts and labor. Final price determined after diagnosis — locked in writing before work begins.
Honest answers to the questions homeowners ask most about furnace repair.
Don't wait — a furnace problem that starts small can become a no-heat emergency. Call us and we'll get someone out today.
Call (555) 010-0100The most common culprits are a failed igniter, a tripped safety switch (often from a dirty filter), a gas supply issue, or a control board problem. Before calling, check that your thermostat is set to heat and the filter isn't clogged — a totally blocked filter can cause the furnace to overheat and trip a safety shutoff.
A good rule of thumb: if the repair cost exceeds 50% of the replacement cost and the furnace is over 15 years old, replacement usually makes more financial sense. We'll give you our honest recommendation — we won't push a repair that doesn't make sense just to close a service call. And we won't push replacement when a simple fix will extend the system several more years.
Very. A cracked heat exchanger can allow combustion gases — including carbon monoxide — to mix with the air circulating through your home. CO is colorless and odorless. If we find a cracked heat exchanger, we're required by law to shut the system down. We'll inspect thoroughly and give you an honest assessment of whether repair or replacement makes more sense.
This is classic flame sensor failure. The flame sensor verifies that the burner has ignited, and if it's coated with residue it can't "see" the flame — so the control board shuts things down as a safety measure. Cleaning or replacing the flame sensor is one of our most common and least expensive furnace repairs.
Yes — we service all major brands including Carrier, Trane, Lennox, Rheem, American Standard, Goodman, York, Bryant, and more. Our trucks stock parts for the most common failures across all brands. If we need a specialty part, we'll source it and schedule a return visit.
You can safely change filters, check thermostat settings, and reset a tripped circuit breaker. Anything involving the gas line, heat exchanger, electrical components, or refrigerant requires a licensed technician — and many repairs will void your warranty if done by an unlicensed person. When in doubt, call us. The diagnostic visit is included when you approve a repair.
"My furnace stopped working on a cold morning. HVAC Services Demo had a technician at my door within 3 hours. He diagnosed a bad igniter, gave me the exact price before doing anything, and had the heat running again in under an hour. Exactly what you want from an HVAC company."
"My CO detector went off and I panicked. Called HVAC Services Demo and they were here within 2 hours. The tech found a crack in the heat exchanger and was completely straight with me about our options. We ended up replacing the system, which he said was the right call given the furnace age. Trustworthy company."
"Our furnace was running but barely moving any air. David from HVAC Services Demo came out same day, diagnosed a failing blower motor, and gave us a flat price. He had the part on his truck and fixed it the same visit. Has worked perfectly since. Five stars — no hesitation."
Don't spend another night cold. Call or book online and we'll have a technician at your door — often the same day.