Sell recurring maintenance with tiered plans and clear inclusions.
| Feature | Basic | Pro | Priority |
|---|---|---|---|
| Annual inspection visits | 1 | 2 | 2 + emergency check |
| Water heater flush discount | 10% | 15% | 20% |
| Priority scheduling | — | ✓ | ✓✓ |
| Diagnostic fee waiver | — | 1/yr | 2/yr |
ROI: Maintenance plans increase predictable revenue and reduce seasonality risk.