How do I compare solar installers and spot red flags?
Choosing a Solar Installer · By Good Faith Energy · Last reviewed October 2026
Key takeaways
- Ask who will actually be on your roof: the company's own crew or a subcontractor.
- Ask who manages your project and how often you will get updates.
- Check certifications, licensing, insurance and recent reviews.
- Be cautious of pressure to sign the same day.
Questions every installer should answer
- Do you use your own installation crews or subcontractors?
- Who is my point of contact from contract to activation?
- What are the main project milestones, and which ones depend on the city or utility?
- Who handles service if something stops working?
Red flags
- Savings promises that are not based on your actual electric bills
- Pressure to sign immediately to keep a price
- Vague answers about warranties or who provides service
- No written list of equipment, including brand and model
Credentials worth checking
Manufacturer certifications, such as Tesla certification for Powerwall installation, show an installer meets that manufacturer's training and quality requirements. Also confirm electrical licensing, insurance and a track record of recent customer reviews.
Frequently asked questions
Is a subcontracted install always worse?
Not always, but it adds another company between you and the work. Ask who supervises the crew and who is accountable for the result.
Have a question about your home?
Talk with a Good Faith Energy specialist for a free consultation.
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