Real pricing from Hytek Air Systems, based in Centennial, CO. These are actual 2026 numbers — not national averages. What you pay depends on what failed, your furnace age, and parts availability.
| Repair Type | Parts | Labor | Total Estimate |
|---|---|---|---|
| Ignitor replacement | $30–$80 | $80–$120 | $110–$200 |
| Flame sensor cleaning/replace | $10–$40 | $80–$100 | $90–$140 |
| Pressure switch | $30–$100 | $80–$120 | $110–$220 |
| Blower motor replacement | $200–$600 | $150–$250 | $350–$850 |
| Control board replacement | $200–$600 | $150–$300 | $350–$900 |
| Gas valve replacement | $150–$400 | $150–$250 | $300–$650 |
| Draft inducer motor | $200–$500 | $150–$250 | $350–$750 |
| Heat exchanger replacement | $500–$1,500+ | $300–$600 | $800–$2,100+ |
| Capacitor replacement | $20–$80 | $80–$100 | $100–$180 |
Multiply your furnace’s age in years by the cost of the repair. If the result is under $5,000, repair usually makes sense. Over $5,000, replacement is often smarter.
Why does my furnace keep shutting off?
Most common causes: dirty air filter (check this first — free fix), flame sensor needs cleaning, pressure switch failure, or overheating from restricted airflow.
Is a 15-year-old furnace worth repairing?
Depends on what’s wrong. A $150 ignitor on a 15-year-old furnace is probably fine. A $800 control board puts that at $12,000 on the 5,000 Rule — suggests replacement.
Do you charge for the service call if I decide not to repair?
The diagnostic fee covers the visit and assessment. If you proceed with repair, it’s credited toward the total. If not, you owe the diagnostic fee only.
Same-day service available. We’ll tell you what’s wrong and give you straight options.