Questions to Ask Before Hiring a Solar Company in Corona

20 questions to ask

1. What system size do I need based on my actual usage?
2. What's my estimated payback period in years?
3. What happens if my roof needs work later?
4. What warranties are included on panels, inverter, and workmanship?
5. Who handles the permits with the City of Corona?
6. What utility approval steps are needed with Edison?
7. Is battery storage worth it for my usage and rate plan?
8. What happens to my system if I sell my home?
9. What equipment brands are you proposing and why?
10. What's the cost per watt installed?
11. How do you size the system, bill, kWh usage, or something else?
12. What's your typical install timeline in Corona?
13. Do you subcontract any of the work?
14. Who do I call if there's an issue 2 years after install?
15. What's your production guarantee, in writing?
16. How do you handle shading and roof orientation in design?
17. What rate escalation are you assuming in savings estimates?
18. What financing options are available and what are their true costs?
19. Are there any dealer fees baked into the financed price?
20. Can I see real Corona or Inland Empire reference installs?

Why these matter

The right questions don't just give you data, they show you how the installer thinks. A salesperson who can't clearly answer how they sized your system is not the same as a designer who walked through your bill before quoting.