Table of Content
- Why It Breaks Down
- Paying For The Repair
- Furnace Ignitor Cost Breakdown
- Hot Surface Ignitor Replacement Cost
- Furnace Ignitor Repair Cost vs Replacement
- HVAC Ignitor Replacement Cost by Furnace Type
- Doing The Work Safely
- Average Repair Costs
- FAQ
- How much does a furnace ignitor replacement cost?
- How much does a furnace ignitor cost by itself?
- Can a furnace ignitor be repaired instead of replaced?
- What is a hot surface ignitor?
- Why does my furnace click but not ignite?
- How long does a furnace ignitor last?
- Conclusion
Furnace ignitor replacement typically costs between $150 and $400 in 2026, including parts and labor. Most homeowners pay around $200–$300 for a standard gas furnace ignitor replacement, while emergency HVAC repairs or high-efficiency systems can cost more.
The ignitor itself usually costs $20–$100, but labor, diagnostics, and emergency service fees significantly increase the final price. A cracked or failed ignitor is one of the most common reasons a furnace blows cold air instead of heat.
Why It Breaks Down
This tiny piece gets extremely hot and then totally cold every single day. The hard metal expands and shrinks during this process. The metal gets very weak and fragile over the years. A tiny white crack forms right in the middle of the dark grey piece. Electricity cannot cross this broken gap. The piece stops glowing and your machine blows cold air. Read our Furnace Starts Then Stops guide to see how this affects your system.
Paying For The Repair
The Part Price
The actual metal piece is very cheap to buy. A standard flat piece costs about $30 at a local hardware store. Some brand new machines use a special round shape that lasts much longer. These special round pieces cost closer to $60. You must buy the exact right shape for your specific machine model.
The Labor Fees
You must pay a professional worker for their time and safe knowledge. A trained worker knows exactly how to handle the fragile new piece without breaking it. They test the gas wires safely to prevent a terrible explosion. A professional worker usually charges between $100 and $150 for this simple service call. Review the Energy.gov Heating Systems page to learn about safe home heating.
Furnace Ignitor Cost Breakdown
The total furnace ignitor replacement cost depends on the type of ignitor, labor rates, and furnace brand.
Typical 2026 costs:
- Ignitor part only: $20–$100
- Professional labor: $80–$200
- Total installed cost: $150–$400
High-efficiency furnaces and OEM manufacturer parts usually cost more than universal ignitors.
Hot Surface Ignitor Replacement Cost
Hot surface ignitors (HSI) are the most common type used in modern gas furnaces.
Average hot surface ignitor replacement costs:
- Universal ignitor: $15–$35
- OEM ignitor: $40–$100
- Professional replacement: $150–$350
Most hot surface ignitors last between 3 and 7 years before cracking from repeated heating cycles.
Furnace Ignitor Repair Cost vs Replacement
In most cases, furnace ignitors are replaced instead of repaired.
Repairing a cracked ignitor is usually impossible because the ceramic heating element becomes too fragile once damaged.
Typical costs:
- Ignitor replacement: $150–$400
- Furnace diagnostics: $75–$200
- Emergency HVAC service: $250–$500+
If your furnace repeatedly fails to ignite, technicians may also inspect the flame sensor, gas valve, or control board.
HVAC Ignitor Replacement Cost by Furnace Type
Replacement costs vary depending on furnace type and efficiency level.
| Furnace Type | Average Ignitor Replacement Cost |
|---|---|
| Standard Gas Furnace | $150–$300 |
| High-Efficiency Furnace | $200–$500 |
| Carrier / Bryant | $180–$450 |
| Lennox | $200–$550 |
| Goodman / Amana | $150–$350 |
| Trane / American Standard | $200–$500 |
High-efficiency systems often use specialized ignitors that increase parts costs.
Doing The Work Safely
Why You Should Not Touch It
You might want to fix this cheap part by yourself to save money. This is very risky. You must never touch the dark grey metal part with your bare fingers. Your skin has natural invisible oils. These oils stick to the piece and burn incredibly hot when the machine turns on. The brand new piece will shatter instantly.
Testing The Wires
A professional uses a special digital meter before they remove the old piece. They check the electrical power coming from the main computer board. Sometimes the computer board is completely dead and the ignitor is perfectly fine. Read our Trane Furnace Error Code E1 guide to learn about broken computer brains. A professional finds the real problem fast.
Need Urgent Help?
Average Repair Costs
| Furnace Component / Service | Average Cost (2026) | Low-End | High-End |
|---|---|---|---|
| Universal Furnace Ignitor | $20–$50 | $15 | $80 |
| OEM Furnace Ignitor | $50–$100 | $40 | $150 |
| Professional Ignitor Replacement | $150–$400 | $100 | $500 |
| Emergency Furnace Repair | $250–$500+ | $200 | $700 |
| Flame Sensor Replacement | $100–$250 | $80 | $300 |
| Gas Valve Replacement | $300–$800 | $200 | $1,000 |
| Furnace Control Board | $400–$900 | $300 | $1,200 |
| Furnace Diagnostics | $75–$200 | $50 | $250 |
| High-Efficiency Furnace Ignitor | $200–$500 | $150 | $700 |
FAQ
How much does a furnace ignitor replacement cost?
Most homeowners pay between $150 and $400 for professional furnace ignitor replacement, including parts and labor.
How much does a furnace ignitor cost by itself?
The ignitor part alone usually costs between $20 and $100 depending on the furnace brand and ignitor type.
Can a furnace ignitor be repaired instead of replaced?
Usually no. Most furnace ignitors crack or fail completely and must be replaced rather than repaired.
What is a hot surface ignitor?
A hot surface ignitor is an electronic heating element that glows red-hot to ignite gas inside a furnace.
Why does my furnace click but not ignite?
This often happens when the ignitor is cracked, weak, or no longer heating properly.
How long does a furnace ignitor last?
Most furnace ignitors last between 3 and 7 years depending on furnace usage and airflow conditions.
Conclusion
A cold house means your basement machine is struggling. You must look inside to see if the metal piece glows bright orange. A tiny white crack means the piece is completely dead. Never touch a new piece with your bare hands. A professional worker will replace it safely for about $150. Check the EPA Indoor Air Quality page to see why a clean filter helps your machine last longer. Use our Contact Us page to get safe heating help fast.
