An HVAC service call diagnostic fee runs $75-150. Average repair cost (parts + labor) is $300-500 for common repairs. Full system replacement ranges from $5,000-15,000 depending on system type and home size. Annual preventive maintenance tune-ups are typically priced at $89-149 per unit.
These numbers represent national averages for 2026. Your actual cost will vary based on geographic market, the specific repair needed, system age, and whether you have an active maintenance agreement (which usually includes discounted or waived diagnostic fees).
HVAC Cost Breakdown by Service Type
| Service | Average Cost | Low End | High End |
|---|---|---|---|
| Diagnostic / service call fee | $100 | $75 | $150 |
| Refrigerant recharge (per pound) | $65 | $45 | $95 |
| Capacitor replacement | $175 | $120 | $250 |
| Contactor replacement | $200 | $150 | $275 |
| Blower motor replacement | $450 | $300 | $650 |
| Evaporator coil replacement | $1,100 | $700 | $1,800 |
| Compressor replacement | $1,400 | $900 | $2,500 |
| Full AC unit replacement (3-ton) | $5,500 | $3,800 | $7,500 |
| Full HVAC system (AC + furnace) | $9,000 | $5,500 | $14,000 |
| Annual tune-up (AC or heat) | $110 | $89 | $149 |
What's Included in a Service Call Fee
The diagnostic fee covers the technician's time to assess the problem — typically 30-60 minutes. Most HVAC companies credit or waive the diagnostic fee if you proceed with the repair. If a company doesn't offer this credit, ask before booking.
Some companies charge a flat "truck roll" fee separate from the diagnostic assessment. Clarify whether the fee you're quoted is all-in for diagnosis or whether additional assessment time is billed separately.
Why HVAC Costs Have Risen Since 2022
Three factors have driven HVAC costs up 20-35% since 2022:
Refrigerant transition costs — R-22 phaseout is complete; R-410A is being phased down. New R-32 and R-454B systems require certification. Refrigerant costs have been volatile.
Parts and supply chain — HVAC components sourced from overseas saw significant price increases. Compressors, circuit boards, and coils remain elevated.
Labor shortage — HVAC technician supply is tight relative to demand. Wages have risen; companies pass those costs through.
For HVAC Business Owners: Flat-Rate vs. Hourly
Flat-rate pricing is the industry standard for good reason — customers know the cost before approving work, and technician efficiency is rewarded. A price book that covers the 80 most common HVAC repairs eliminates most pricing conversations. For unusual or complex repairs not in the book, time-and-material pricing is appropriate with customer agreement upfront.
Maintenance agreements (typically $150-250/year per unit, covering 2 tune-ups and priority service) are a key revenue stability tool. Contracted customers have predictable revenue and lower no-show rates.
FAQ
Is it worth repairing an older HVAC system or replacing it?
The common rule: if repair cost exceeds 50% of replacement cost and the system is over 10 years old, replacement is usually the better investment. A $1,400 compressor on a 14-year-old system is typically not worth it. A $350 capacitor on a 6-year-old system almost always is.
Does an HVAC maintenance agreement actually save money?
For homeowners running systems year-round, yes. The tune-up itself ($89-149 without agreement vs. included with agreement) is only part of the value — priority scheduling, waived diagnostic fees on repairs, and early detection of issues before they become expensive failures add up. For contractors, maintenance agreements provide predictable recurring revenue and create natural upgrade conversation opportunities.
See how contractors price services using flat-rate books in the plumbing trade, or learn how field service software manages maintenance agreements and service history tracking.